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Operator
Greetings. Welcome to the Fuel Tech First Quarter 2021 financial Results Conference Call. (Operator Instructions). Please note, this conference is being recorded.
At this time, I'll turn the conference over to Devin Sullivan, Senior Vice President of the Equity Group. Devin, you may now begin.
Devin Sullivan - SVP
Thank you, Rob. Good morning, everyone, and thank you for joining us today for Fuel Tech's First Quarter 2021 Financial Results Conference Call.
Yesterday, after the close, we issued our press release, a copy of which is available at the company's website, www.ftek.com.
Our speakers for today's call will be Vince Arnone, President and Chief Executive Officer; and Ellen Albrecht, the company's Principal Financial Officer.
After prepared remarks, we will open the call for questions from our analysts and investors.
Before turning things over to Vince, I'd like to remind everyone that matters discussed on this call, except for historical information, are forward-looking statements as defined in Section 21E of the Securities Exchange Act of 1934, as amended, which are made pursuant to the safe harbor provisions of the Private Securities Litigation Reform Act of 1995 and reflect Fuel Tech's current expectations regarding future growth of results of operations, cash flows, performance and business prospects, opportunities as well as assumptions made by and information currently available to our company's management.
Fuel Tech has tried to identify forward-looking statements by using words such as anticipate, believe, plan, expect, estimate, intend, will and similar expressions, but these words are not the exclusive means of identifying forward-looking statements. These statements are based on information currently available to Fuel Tech and are subject to various risks, uncertainties and other factors, including, but not limited to, those discussed in Fuel Tech's Annual Report on Form 10-K and Item 1A under the caption Risk Factors and subsequent filings under the Securities Exchange Act of 1934, as amended, which could cause Fuel Tech's actual growth, results of operations, financial conditions, cash flows, performance and business prospects and opportunities to differ materially from those expressed in or implied by these statements.
Fuel Tech undertakes no obligation to update such factors or to publicly announce the results of any forward-looking statements contained herein to reflect future events, developments or changed circumstances or for any other reason. Investors are cautioned that all forward-looking statements involve risks and uncertainties, including those detailed in the company's filings with the SEC.
With that said, I'd now like to turn the call over to Vince Arnone, President and CEO of Fuel Tech. Vince, please go ahead.
Vincent J. Arnone - Chairman, CEO & President
Thank you, Devin. Good morning, and I want to thank everyone for joining us on the call today.
I remain very proud of what our team has accomplished during this past year of uncertainty, and I am optimistic regarding our outlook for the remainder of 2021 and beyond as we continue on our path towards establishing a foundation for long-term and sustainable growth. With the financing that we completed in the first quarter of this year, we are in the best position in our recent history to find strategic solutions to return our base businesses to profitability, expedite the demonstration and further market discovery of our DGI technology and to investigate other products and market opportunities.
While we intend to capitalize on the flexibility that our strong cash position affords us, our immediate focus will be on expediently furthering the commercial development of our DGI technology via necessary investments in human resources, equipment and third-party assistance where necessary. Concurrently, we will be assessing the business landscape in detail for our APC and Fuel CHEM business segments to better enable us to focus on the markets and products that can lead to overall company profitability.
Ellen will discuss our financial results in detail shortly, but I'll provide a high-level summary. Our first quarter 2021 revenues rose 33% from the prior year, driven by a nearly 60% increase in net sales for our Fuel CHEM business segment. Fuel CHEM benefited from new program installations that occurred in the fourth quarter of last year and an overall rise in demand for energy on a period-over-period basis in those regions of the country where our technology is utilized. We are confident that our performance at Fuel CHEM in 2021 will exceed its 2020 performance.
Offsetting the improvement in Fuel CHEM was continued sluggish performance at our APC business, where we are experiencing pandemic driven project delays and cancellations that have resulted in a lack of new orders. We are hopeful that APC will recover in conjunction with resumption of global economic activity in 2021, which, in turn, would allow us to capture opportunities associated with our current global sales pipeline of $40 million to $50 million.
We narrowed our operating loss in the first quarter of 2021 to $1.2 million from $2.7 million in the first quarter of 2020. As a result of the full forgiveness of our PPP loan in the first quarter, we reported net income of approximately $400,000 or $0.01 per share compared to a net loss of $2.6 million or $0.10 per share in the first quarter of 2020. We ended the first quarter with $36.1 million in total cash, following the closing of our financing in February of this year. We have no debt, and our financial condition is the strongest that it has been in several years.
Although we still face a variety of challenges related to the endemic and certain areas of our end markets remain unchanged, we are still optimistic for our company's future. Our 3 distinct environmental remediation platforms are well positioned to capture significant opportunities in the respective end markets as we emerge further from the effects of the pandemic, uncertainty list and when global economic activity fully resumes to normalized levels. We are very well capitalized with a lean operating structure that can be leveraged to allow us to produce breakeven operating results at an annual revenue range of $25 million to $30 million, depending on project mix.
As we rapidly approach the midyear point of 2021, I want to provide an overview of our operations and discuss the opportunities inherent in each. At our APC business, COVID-19 has continued to affect the timing of new business awards, due, in large part, to its impact on industrial purchasing activity. Our greatest opportunities lie in, in industrial applications, led by our SCR and ULTRA technologies. We continue to be actively engaged with turbine suppliers, heat recovery steam generator manufacturers, rice engine suppliers, carbon black manufacturers and municipal solid waste, biomethane and pulp and paper facilities. We are also monitoring activities at the state level or new environmental guidelines, including compliance with the EPA cross-state air pollution and regional haze rules may produce opportunities to install best available retrofit control technology on certain sources of emissions.
As a company, we are watching the actions of the Biden administration very closely, especially with respect to nitrogen oxide emissions. A focus on climate change and greenhouse gas reduction may include options beyond traditional renewable energy from wind and solar. The interest in hydrogen as a fuel source option for utility industrial units is growing since there are no greenhouse gas emissions, but this option would increase NOC emissions require additional controls over time. The administration is addressing environmental justice by seeking to reduce the potential health impact of air pollutants, including NOCs on people living closest to emission sources. This could result in changes to air permits and tighter regulations.
Despite challenges, we do expect APC project award activity to improve during the remainder of 2021 from our recent experience, and we would expect revenue to be moderately improved versus 2020. However, this will depend on the timing of contract award and required execution.
We believe that the Fuel CHEM segment will continue to produce strong results during 2021. As we return to more normalized run rates across our fleet and as we expect to see year-on-year incremental contributions from the installation of our Targeted In-Furnace Injection technology on 3 new domestic coal-fired units in the fourth quarter of last year.
Upside to our Fuel CHEM results could come in the form of application opportunities inside the U.S. where the remaining fleet of coal-fired power generation boilers seeks to remain competitive in regional markets via the utilization of lower cost, lower quality fuel. It is these scenarios that are likely to create the slagging and following issues that could necessitate the installation of our Fuel CHEM program, and we are working with an additional customer right now that is having difficulty burning a lower-cost, lower-quality fuel that they converted to at the end of last year in order to enhance their competitiveness and allow incremental dispatch.
Internationally, our primary upside potential lies in providing our solution to address the emissions created by the burning of high-sulfur fuel oil in Mexico. We are continuing to support our partner in Mexico as they engage with local officials to advance this solution. The current Mexican government is in favor of utilizing indigenous fuel sources for power generation to ensure that they can move towards becoming energy independent. And the power generation dilemma in Texas in the first quarter of this year further solidified their position that, as a country, they don't want to be dependent on external fuel sourcing power for generation, such as natural gas from the U.S.
There is currently a glut of high-sulfur fuel oil in Mexico as the international market for this product has been significantly reduced with the adoption of new International Maritime Organization restrictions, which prohibit the use of this fuel.
Today, we know that high-sulfur fuel oil is currently being burned at facilities in Mexico without the necessary environmental controls, and local communities are rendering complaints about the impact of severe pollution. We will continue to watch the development of this activity closely. However, we do believe that political pressure is building in favor of the implementation of our Fuel CHEM program at additional facilities in Mexico.
After a slow start, attributable to the pandemic, we are starting to realize momentum at our Dissolved Gas Infusion business. We are addressing multiple growth pathways, including the development of a large-scale DGI-delivery system, in-depth market assessment and research and the pursuit of commercial opportunities that will likely take place in the second half of 2021, following 2 successful demonstrations of the technology, one in support of our licensor and the other in support of an internally generated opportunity.
Regarding the completed demonstrations, the first was at a municipal wastewater treatment facility on the West Coast in support of our licensor; and the second was at a new fuel tech customer in the pulp and paper business located in the Pacific Northwest. Additionally, we have just recently started a third demonstration at a different municipal wastewater treatment facility on the West Coast, also in support of our licensor.
While each demonstration opportunity addresses customer-specific issues, the first demonstration at the municipal wastewater treatment facility on the West Coast was intended to provide supplemental oxygenation during the high waste volume period for the municipality. The municipality is located in a recreational area that receives an influx of visitors during the holiday periods. And when this happens, the wastewater treatment plant does not have the capacity to treat the incremental waste and remain incompliance. During the demonstration, the DGI system was able to efficiently deliver supersaturated oxygen to improve the quality of the water to a level that was actually better than the prior year when the volume of wastewater treated was actually lower.
The second demonstration was at a pulp and paper facility in the Pacific Northwest that is looking to increase their production capacity later this year. With this increase in capacity, the plant will need to treat 60% to 80% more wastewater with its current wastewater treatment plant. As it would be cost-prohibitive and time-consuming to expand the wastewater treatment plant, the customer desired to understand the capability of the DGI-delivery system to augment the dissolved oxygen needs of their existing wastewater treatment plant. The demonstration proved to be successful based on customer feedback and supporting data analysis, and we are now working with this customer to determine our next course of action.
In addition to these demonstrations, we will continue to pursue additional opportunities with a target of having a commercial system online and running before the end of this year. Regarding the development of a large-scale DGI-delivery system, we are moving forward with the investment in the design and fabrication of a higher-capacity DGI equipment delivery system, as we believe the increased capacity will be necessary to address the needs of the majority of our end markets. We are looking to complete this project in the third quarter.
In closing, in 2021, the Fuel Tech team is guided by a focus on operational excellence, client service, innovation and financial improvement. I want to thank the Fuel Tech team for their continued hard work and dedication as their efforts have allowed us to continue to execute against our plan and provide nothing but the highest level of service to our customer base.
I would also like to thank our shareholders, both old and new, for their continued support as we work to diligently enhance shareholder value through our various initiatives.
With all of that said, I'll now turn the discussion over to Ellen. Ellen, please go ahead.
Ellen T. Albrecht - Acting Treasurer, Controller & Principal Financial Officer
Thank you, Vince, and good morning, everyone.
We hope you've had the opportunity to review our first quarter results. Consolidated revenues during the quarter increased 33.2% to $5 million from $3.8 million in the last year's first quarter, reflecting significantly higher revenues in our Fuel CHEM segment. This was offset by a decline of $290,000 in revenue for our APC segment.
Field CHEM segment revenues rose $4.1 million from $2.6 million in the first quarter of 2020, primarily reflecting higher power demand, the addition of new accounts and recovery from the initial emergence of the COVID-19 pandemic, which impacted results in the prior year period. Offsetting this growth was a slight decline in revenue of our APC business, where we are continuing to experience pandemic-driven project delays and cancellations that have resulted in a lack of new orders.
Consolidated gross margins for the first quarter was 46.9% of revenues compared to 40.4% of revenues in Q1 of 2020, reflecting a higher concentration of the Fuel CHEM product line revenue. Fuel CHEM's gross margin in the first quarter was 48% compared to 42.4% in last year's first quarter as many accounts returned to normalized run rate. APC segment gross margin increased to 41.4% in the first quarter of 2021 from 36% in 2020, primarily due to product and project mix.
Consolidated APC segment backlog at March 31 was $5.2 million compared to $5.3 million at December 31, 2020. APC backlog at March 31 included $4.7 million of domestic backlog as compared to $4.9 million of domestic backlog as of December 31. We anticipate approximately $3 million of current consolidated backlog will be recognized in the next 12 months. APC backlog has trended downwards for the last several quarters as a sluggish overall sales environment was exasperated by deferred purchasing due to the uncertainties created by the COVID-19 pandemic. As mentioned in our press release, we are pursuing a global sales pipeline of approximately $40 million to $50 million.
A common theme for quite some time has been our success at controlling costs. To this end, SG&A expenses declined by 20.2% to $3.1 million from $3.9 million in the first quarter of 2020, reflecting lower employee, administrative and professional service costs, including costs related to the previously announced closure of the company's APC business in China.
Research and development expenses for the first quarter were $415,000, a 28% increase from the prior year quarter of $324,000 as we focus efforts on further development and commercialization of our DGI technology.
For full year 2021, we expect SG&A expenses will range between $12 million and $12.5 million, however, we will flex our spending as appropriate to reflect any change in business, including new contract awards and investments or acquisitions as we consummate following our capital raise earlier this year.
Operating loss narrowed to $1.2 million from an operating loss of $2.7 million in last year's first quarter. Other income in the first quarter of 2021 was $1.6 million, reflecting full forgiveness of the loan proceeds from the Paycheck Protection Program established pursuant the Cares Act. Other income in last year's first quarter reflected income related to AR collections in China.
As a result of the loan forgiveness, net income was approximately $400,000 or $0.01 per share compared to a net loss of $2.6 million or $0.10 per share in the first quarter of 2020.
Adjusted EBITDA loss was $0.9 million in Q1 of 2021 compared to an adjusted EBITDA loss of $2.2 million in the first quarter of 2020.
With respect to China, we continue to focus on our collection efforts. And as of March 31, we are pursuing an estimated $1 million to $1.2 million of China receivables, the majority of which we expect to repatriate in 2021.
Moving to the balance sheet. As of March 31, we had cash and cash equivalents of $35.7 million and our restricted cash balance had declined to $420,000. Working capital was $38.5 million or $1.40 per share. Stockholders' equity was $46.5 million or $1.68 per share, and the company had no debt. These figures reflect the February financing in which we raised the total proceeds -- gross proceeds of $25.8 million.
Cash use in operating activities for the first quarter of 2021 was $225,000 compared to $1.9 million in the first quarter of 2020.
While we have seen a slight recovery from the global effects of the COVID-19 pandemic in our current financial results, we remain cautiously optimistic towards our business prospects, and we'll continue to focus on the successful execution and management of our operations. As Vince indicated, we are in the best financial condition we have experienced in recent years and will direct our efforts towards leading the company to overall profitability.
Now I'd like to turn the call back over to Vince.
Vincent J. Arnone - Chairman, CEO & President
Thanks very much, Ellen. Operator, we would now like to open the lines for any questions, please.
Operator
(Operator Instructions) Our first question is from the line of Sameer Joshi with H.C. Wainwright.
Sameer S. Joshi - Associate
So as far as the backlog -- rather pipeline goes, it has remained the same since the last quarter results. Is that pipeline as of the end of the quarter or as of the earnings date?
Vincent J. Arnone - Chairman, CEO & President
Can you please restate the end of your question, Sameer? Was it -- was the pipeline as of the end of the quarter or as of current date? Was that your question?
Sameer S. Joshi - Associate
Correct. Yes.
Vincent J. Arnone - Chairman, CEO & President
It's actually -- to be honest, it's actually a similar number. There hasn't been a great variability in the dollar value of what we have rolling up on our pipeline because we have seen many of the projects that are in our pipeline have some delay. And also, many of the projects that we roll up in a pipeline cover a 1- to 2- or 1- to 3-year period of time as well. So they wouldn't necessarily change within a short period of time.
But as we sit here today, it's an active and viable pipeline, both domestically -- and I'm actually surprised at the level of activity we have coming out of the European marketplace right now.
Sameer S. Joshi - Associate
Understood. So does this -- I understand that this is mostly APC. Is there any new TC installations that you may be expecting? And is that actual installation included in this pipeline?
Vincent J. Arnone - Chairman, CEO & President
Yes. The pipeline that we report upon is indeed only our pollution control. We don't report a pipeline as it relates to any of the Fuel CHEM possible installations because those are awfully difficult to predict in terms of when a customer might need our services.
But as you know, as we've discussed, we were fortunate to add 3 additional units at the end of last year that are contributing nicely here in 2021. And as I noted in my commentary, we are working with an additional customer that went through a fuel switch at the end of last year, that called us because they're having difficulties burning this fuel, okay?
So we are working with them relative to data analysis at this point in time to see if we might be a good candidate to help them with their problems. And these usually take a handful of months to develop in terms of how long it takes before we would actually have a program in place for a customer. But the good news is that we do have upside opportunity. And hopefully, we'll have additional upside opportunity along similar lines with other customers as well here in the future.
Sameer S. Joshi - Associate
Understood. So in that Fuel CHEM business, I think it was a nice recovery this quarter. Do you expect a similar -- a continued recovery? And then again, in the September quarter, do you see just based on usage and a spike in the revenues from Fuel CHEM over what you already are seeing in this quarter?
Vincent J. Arnone - Chairman, CEO & President
I think that last year, for the full year, we -- on an annualized basis, we were at around $14 million in total for Fuel CHEM for 2020. And obviously, that was heavily impacted by COVID. The $4 million in Q1. I think just as a general range, is fairly indicative if you annualize that, probably not too far from where we would expect to be on a full year basis as we sit here today, somewhere in that, I'll say, $15.5 to $17 million range, somewhere in that range.
Sameer S. Joshi - Associate
Understood. And then I think we have -- sorry, go ahead.
Vincent J. Arnone - Chairman, CEO & President
Sameer, that would not include any upside opportunities from new accounts that could come on, anything that might happen down in Mexico either.
Sameer S. Joshi - Associate
Yes, there's upside to that. Got it. The other item, I think we have discussed in the past is about the DGI scale up and opportunity. I think you mentioned in your prepared remarks that you might at least initiate one project before the end of 2021. Did I hear that correctly?
Vincent J. Arnone - Chairman, CEO & President
Correct. That is our goal, Sameer. We would like to be commercial on at least one application before the end of '21. And we -- with the additional capital, we're going to utilize that very wisely. DGI, we think, is a very important technology, and we're very high on that technology right now. So we're going to use some of our funds to invest in looking to push DGI forward as expediently as we can at this point in time.
Sameer S. Joshi - Associate
And in terms of scale or revenues, what should we be expecting? I mean you have 2 pilots that were done and the third demo is going on. What are the prospective sizes in terms of dollars per year from these facilities if they materialize?
Vincent J. Arnone - Chairman, CEO & President
Yes. At this point in time, Sameer, I think it's premature for me to be talking about revenue contributions from DGI. I would rather hold off on that for now until we obtain a little bit more market-specific information and have a little bit of commercial success. I also noted that we are going to use some third-party expertise to help us better digest the overall applicability of advanced deration in a variety of different end markets. And so we're going to invest in a little bit of that scope of work as well.
So we'll have more to report on, call it, a range of possible projection as we move throughout the -- this year and probably more likely towards the end of this year.
Sameer S. Joshi - Associate
Okay. And I think last question for me. I think Ellen gave some commentary on s G&A going forward. But do you expect SG&A to increase as your activities across the businesses increases during -- over the course of the year?
Vincent J. Arnone - Chairman, CEO & President
So there's probably going to be a little bit of give and take in the number. I think what Ellen provided $12 million to $12.5 million is likely a solid number for this year. If we have incremental APC revenues, what happens is our engineering team becomes more utilized, and we'll have basically more of our SG&A human capital rolling into cost of sales. So that would be a reduction in overall SG&A.
On the other hand, based upon the results of further DGI demonstration work and some of the studies that we're going to be doing, we may have impetus to invest in human capital, if you will, later this year. So that would be, again, a slight increase, but later in the year. So full year impact, I still see us falling in that $12 million to $12.5 million range for 2021. And then we'll see what our footprint looks like as we move into 2022.
Sameer S. Joshi - Associate
And can you just confirm that $12 million to $12.5 million is a GAAP number? Or does it include -- or does it exclude any noncash items?
Vincent J. Arnone - Chairman, CEO & President
That is a GAAP number.
Operator
Our next question is from the line of Pete Enderlin with MAZ Partners.
Peter J. Enderlin - Portfolio Manager
First question is on the pipeline of $40 million to $50 million. Is that mostly -- or can you break it out approximately between coal or natural gas type facilities?
Vincent J. Arnone - Chairman, CEO & President
I would -- off the top of my head, I'll give you a ballpark, Pete. I'd say it's probably closer to 70% to 75% natural gas and the remainder being coal, coal and other types of process industries.
Peter J. Enderlin - Portfolio Manager
Okay. Yes. And what -- you made a number of comments about the timing of awards being stretched out by the pandemic and cyclical effects and all that. When you talk to people that are part of this pipeline, do they specify new timetables? Do they say that they've been delayed by x amount of months? Or how easy is it to tell when they may actually come back and make a decision?
Vincent J. Arnone - Chairman, CEO & President
It definitely varies by application, Pete, and it really depends on the specific situation with that end customer. I mean we -- just as an example, there's a customer we've been working with for probably a year's time frame now on some SCR-related work. And we were expecting this contract to go to bid last year -- at the end of last year. It was pushed towards the, call it, late first quarter, early second quarter of this year. And so we were expecting another few to come out for further work in the April-ish time frame. And we've just recently heard that's now going to be pushed into mid- Q3.
And so it varies by application. And it's difficult for us to get our arms around, just generally speaking, because we just need to ensure that we track the pace of the award activity that we maintain relationship contact to the extent that we can to ensure that we're included in all of this activity as it does move forward. So that's what we do, obviously, to the best of our abilities. But sometimes, we are giving some specific time frames. At other points in time, it's a general statement whereby it's delayed indefinitely. We will come back to you when the process will move forward. So it varies.
Peter J. Enderlin - Portfolio Manager
I think the key takeaway from what you just said is that basically, you do keep in touch that you're monitoring those individual situations as well as you can. And sometimes, it's not that easy, but that you generally have a pretty good idea of where they are in their individual processes?
Vincent J. Arnone - Chairman, CEO & President
Yes. Absolutely, so. And that is applicable not just for APC, it's applicable for our chemical technologies, and now as it relates to DGI as well because as we...
Peter J. Enderlin - Portfolio Manager
One more question on APC. And that is, from a long-term perspective, that business is much smaller than it used to be. And so the question is, how do you distinguish between cyclical effects, such as the recession/pandemic and secular effects? And where do you think we are in terms of the secular effect shift away from coal and fossil fuels, in general, you might say?
Vincent J. Arnone - Chairman, CEO & President
Right. Yes, and Pete, that is actually an excellent question, and it's something that we internally look to address on a recurring basis with my leadership team and at Board level as well. We know that there's been a secular change relative to the utilization of fossil fuels. And yes, over the past several years, we've seen a general decline in overall APC opportunities that would relate to fossil fuels. So that's a known fact, and that is indeed continuing.
As we sit here today, we, as a company, believe that we are feeling the impact of COVID and not necessarily an additional impact related to the secular change, if you will. But the secular change is real. And hence, our drive to bring up another business line to generate revenues and profitability as quickly as we possibly can. Because the timing with which we come to an ultimate end -- an ultimate end of the utilization of fossil fuels, it's unknown, but it's -- the pressure is there, and it's obvious, and we see it day in, day out.
Peter J. Enderlin - Portfolio Manager
Okay. And then I have a question on Fuel CHEM, which is -- I think, as I recall, it's basically a relatively small number of large utility installations. I forgot the number, but it's surprisingly small. But each one is a pretty large revenue generator as we just saw from the 3 that you added in December.
So the question is, why would not that technology be more broadly applicable to most, if not all of the coal-fired utilities that are out there in the country?
Vincent J. Arnone - Chairman, CEO & President
Yes. We've talked about that a little bit time and time again over many, many years, just relative to the applicability of the Fuel CHEM technology. It's not a fit for everyone. It's designed to treat the inefficient burning of coal in boiler units that weren't necessarily designed to burn specific types of coal. And so not all units have that issue. Not all units are driven to fuller levels of capacity, either at this point in time in the history of coal-fired burning utilities.
And typically, you only see the -- call it, the more devastating impact of slagging and following when these units are pushed at higher capacity levels and when they continue to run at higher capacity levels as opposed to scaling up and down on a recurring basis. Because if a unit is scaling up and down, what happens is as the inside of the boiler changes its temperature profile, some of the lagging actually cleans itself automatically through that temperature change. And so Fuel CHEM is a very unique technology application, and we've learned that over many, many years of looking to put it in the marketplaces, the near-term driver, the current driver is really those remaining coal-fired units that are looking to be dispatched at higher capacity levels, and they're looking to burn fuels that are not necessarily kind to their boiler. And as a result, by trying to burn these fuels and running at higher capacities, they have difficulties. That's where Fuel CHEM can help.
Peter J. Enderlin - Portfolio Manager
It's an isolated thing. And sort of a follow-up to that is, as of today, how many Fuel CHEM installations do you have versus the potential of the ones that you just mentioned that really could use it because they specifically procure your operating characteristics.
Vincent J. Arnone - Chairman, CEO & President
Yes. So the interesting point, we talk about with that the team on a regular basis because I pose the question myself, why don't we know a little bit more about what's happening in marketplace is along those lines. Fuel switches, fuel diet, fuel procurement by major utility is a confidential activity. We don't know when that's going to happen. And -- so it's difficult for us to find out when those units are making those changes, and that could have an impact.
And coal contracts, in general, are becoming lower cost. So some utilities that are running a coal-fired boiler are able to find some good quality coal at some pretty good prices as well. So Pete, it's -- I don't have a direct answer to your question because I can tell you right now if we were aware of more scenarios that could benefit our program, we'd be all over them immediately, immediately.
Peter J. Enderlin - Portfolio Manager
Okay. And one question on DGI. You said it's really too early to talk about revenues per installation or whatever or certainly total revenue growth potential. But could you help us just understand a little better what the business model would look like in terms of, say, CapEx by the customer versus licensing or support revenues or supply revenues or whatever it may be?
Vincent J. Arnone - Chairman, CEO & President
I think we're going to see multiple business models depending on the industry that we're selling into at this point in time, Pete. I think we're going to see some industries that are pleased with a more of an operating cost-style business model, whereby we would enter into longer-term lease structures for the application. But then I think that we will also see capital project type of business model opportunities as well in other industries.
So I don't think it's going to be standard. And I think that we're going to, as a company, have the flexibility to adapt to the industry protocols, if you will.
Peter J. Enderlin - Portfolio Manager
Well, but broadly speaking, however, it's worked out in terms of CapEx or lease or whatever. Do you think it's going to be mostly an equipment sale? Or will there be a significant opportunity for recurring revenues of Fuel CHEM?
Vincent J. Arnone - Chairman, CEO & President
Well, from a recurring revenue perspective, I think that would be -- I consider that to be the leasing model for the equipment on a long-term basis. Okay...
Peter J. Enderlin - Portfolio Manager
No, I mean leasing is just another way of financing capital. What I'm saying is what about supplies or support revenues, maintenance revenues and maybe licensing some software or something like that. Just what you would really define as analogous to the Fuel CHEM recurring revenue stream?
Vincent J. Arnone - Chairman, CEO & President
Right. With Fuel CHEM, in addition to our -- the program itself includes equipment, the chemical itself and an on-site maintenance component as well, all roll together as a program. For DGI, we can't envision that there could be a service/maintenance component to it, okay, depending on the level of manpower that is relevant for the industry application that is available at site. From what we're seeing right now, at least via the initial demonstrations that we've done is that on-site manpower for wastewater treatment plants, at least in certain facilities, is extremely limited in nature.
So we could see a maintenance component. But as we sit here right now, there really isn't another deliverable that would go over and above with the delivery system itself. But Fuel...
Peter J. Enderlin - Portfolio Manager
Okay. That's very helpful.
Operator
Our next question is from the line of George Gaspar, private investor.
George Gaspard
Just to dig a little bit further into a couple of different areas. First, I'd like to talk about the DGI. The initial testing that you did in California on the first project, it related certain results to you, obviously. And it didn't look like it evolved into an additional major potential opportunity in terms of a placement of a system.
Was it -- did this have something to do with something else you had to do in the clarity of the water that you weren't accomplishing initially? Or is it trying to determine how large a unit would be necessary to solve a particular problem in that areas where you were doing your testing. Can you elaborate on some of this?
Vincent J. Arnone - Chairman, CEO & President
I can a little bit, George. So the first demonstration that we did was out in California. This was at the recreational area that I mentioned. This was not a Fuel Tech demonstration. This was our licensor's demonstration, but the demonstration utilized our DGI-delivery system. So we have been partnering with our licensor to assist them as necessary to help them further their market applicability of the technology as well, which ultimately is going to benefit us, okay?
So this was a -- it's a municipality. It was an approximately a 6-week demonstration that we did during the Thanksgiving and Christmas holiday periods. And they needed additional oxygen to treat the additional wastewater treatment requirements that were derived from having an additional population in the area over the holidays. And the demonstration was indeed successful as communicated to us.
However, the caveat here is, as this is not Fuel Tech's demonstration, the data that was actually generated by the municipality, and there was another engineering firm involved with the demonstration that works with our licensor, that data is not something that Fuel Tech has in hand, okay?
So as we sit here today, from what we saw from being on-site from our communication with licensor, DGI did its job at the sites, okay? And how that would turn into the commercial application for that particular municipality is something that will evolve over time, but the DGI system delivered as designed. So we were pleased to see that, and our equipment functioned extraordinarily well.
So that was technically our first utilization of our delivery system at a customer location. So it also provided us with the beginnings of a list of, call it, improvements and modifications that we are now looking to build into our, what I would call, more of a commercial scale prototype that we're in the process of putting in.
George Gaspard
Okay. All right. Well, that's -- you're moving in a positive direction there. Just to elaborate on the DGI. When California, it looks like it's in a full-fledged collapse as a state, and with this -- a lot of people moving out and so on. And they really need this kind of thing. They've just been absent staying with technology. But the point I'm making here is that how about expanding your testing into like Florida. Florida is growing rapidly and is in desperate need of some -- they have some serious water problems in the southern part of the state. And it would seem like some of what you're working on could be well utilized there. Is there any chance of you to set something up in terms of -- with some kind of connective opportunity for you to broaden your testing in the United States?
Vincent J. Arnone - Chairman, CEO & President
Yes. I think, George, I think that's something that is going to evolve, but evolve sooner rather than later. As I had noted, we are going to do the necessary work to put a plan together regarding, call it, market segments of interest. Once we have a better understanding of that, we'll then be able to go ahead and determine where we move, how we scale up for what applications, how we're going to approach specific customers and why?
And so we are moving at a much faster pace with DGI right now over this past 3 to 4 months than we have over the past 2 years, and having the additional capital in hand to enable this to move forward is a great benefit to us.
George Gaspard
Okay. All right. Well, hopefully, that materializes for you. An additional question on the gas turbine power business. I know that you've been trying to enter further into that in a pollution control side. And I'm wondering how do you see that opportunity for you? It appears as though the United States is going to have to go for more gas turbine power. And it looks like it's got some real space to grow. Are you really working on that to try to capitalize more on the opportunity to supply control measures there?
Vincent J. Arnone - Chairman, CEO & President
Yes. I think we're well suited to meet those demands, George. We had our -- call it, our series of gas turbine project work in 2017, 2019 in support of the data center out Northwest. We thought more work was going to be coming more expediently in follow-up to that just on an overall basis, but we haven't necessarily seen those opportunities come to the marketplace as of yet. But our ability to go ahead and put together a very well-functioning system design for whether it be gas turbines, gas engine, diesel engines, is an area that we are very confident in our capabilities. And when we see those opportunities come to market, where we're going to be moving towards them aggressively.
George Gaspard
Yes. Okay. All right. And in closing, I complement you on getting into the equity market for the additional equity that you accomplished over $5 a share. And hopefully, the people have bought the investment at that point, fine. Fuel Tech, obviously, a lot more attractive at the current price level. So hopefully, you can really start moving your accomplishments forward and broaden the technology that this should give the company an opportunity to see a big turnaround in the price of the stock. Thank you.
Vincent J. Arnone - Chairman, CEO & President
Yes. Agreed, George. Thank you very much for your commentary. Appreciate it, and we'll talk to you again soon.
Operator
At this time, we've reached the end of the question-and-answer session. I'll turn the call over to Vince Arnone for closing remarks.
Vincent J. Arnone - Chairman, CEO & President
Thank you, operator. I want to thank everyone for joining us on the call today. We, as a company, are on a path towards returning ourselves to growth and profitability.
I hope that today, we've defined at least some of the initiatives that we're working on to get there. And we'll continue to report on our progress as we move throughout the year.
So thanks again for your time, and everyone, have a good day.
Operator
This will conclude today's conference. You may disconnect your lines at this time. Thank you for your participation.