Greetings, and welcome to the Energy Recovery Fourth Quarter and Full Year 2022 Conference Call. At this time, all participants are in a listen-only mode. A brief question and answer session will follow the formal presentation. If anyone should require operator assistance during the conference, please press star zero on your telephone keypad. As a reminder, this conference is being recorded. It is now my pleasure to introduce your host, James Siccardi, Vice President of Investor Relations. Thank you, James. You may begin.
Hello, everyone, welcome to Energy Recovery's 2022 Full Year and Fourth Quarter Earnings Conference Call. My name is James Siccardi, Vice President of Investor Relations at Energy Recovery, and I'm here today with our Chairman, President, and Chief Executive Officer, Bob Mao, and our Chief Financial Officer, Joshua Ballard. During today's call, we may make projections and other forward-looking statements under the safe harbor provisions contained in the Private Securities Litigation Reform Act of 1995 regarding future events or the future financial performance of the company.
These statements may discuss our businesses, economic and market outlook, growth expectations, new products and their performance, cost structure, and business strategy. Forward-looking statements are based on information currently available to us and on management's beliefs, assumptions, estimates, or projections. Forward-looking statements are not guarantees of future performances and are subject to certain risks, uncertainties, and other factors.
We refer you to documents the company files from time to time with the SEC, specifically the company's Form 10-K and Form 10-Q. These documents identify important factors that could cause actual results to differ materially from those contained in our projections or forward-looking statements. All statements made during this call are made only as of today, February 22, 2023. The company expressly disclaims any intent or obligation to update any forward-looking statements made during this call to reflect subsequent events or circumstances, unless otherwise required by law. At this point, I will turn the call over to our Chairman, President, and Chief Executive Officer, Bob Mao.
Thank you, James. Thank you everyone for joining us. We had one of the best years in Energy Recovery's history in 2022. Let's recap for a moment. 21% organic top-line growth while winning 100% of the mega projects tendered and awarded in 2022. Industrial wastewater exceeded guideline and almost quadrupled 2021 revenue. We generate some of the best profit metrics in Energy Recovery's history. Gross margin of 69.6% exceeded 2021 full year by 100 basis points. OpEx as a percentage of revenue when adjusted for one-time costs was 48%, its lowest level in 14 years. During the past three years, this adjusted OpEx has grown only 8%, despite revenue growing 73% in the same period. Our Adjusted EBITDA exceeded $30 million for the first time and increased earning per share by 75%.
We also positioned each of our business for future growth. We launched the PX Q400 for seawater desalination, a low-pressure PX for brackish and wastewater applications, along with new industrial wastewater products. We commissioned our first PX G1300s in Europe and in the U.S., and have generated field performance that has surprised even our partners. In short, I couldn't be more pleased with our progress in 2022. As we all look to 2023, there remains macroeconomic uncertainty, and this is nothing particular to Energy Recovery. We will have to navigate these short-term uncertainties together in the coming months, and we will continue to keep you informed. What I will say is that here, at the beginning of 2023, we are cautiously optimistic about the current year, seeing solid single-digit revenue growth and remain bullish on our long-term prospects.
As usual, I'll start with our water business, where we are actively investing to both strengthen our position in the desalination market as well as to seek out new avenues of growth. We know we cannot sit still and must continue to innovate and grow in new ways despite our commanding position in the market. Last quarter, we announced the new PX Q400, our most efficient and highest capacity PX available today. We have found strong customer interest in our new high-efficiency PX. The first of these orders will begin to ship in the second half of this year, and we expect that PX Q400 will make up a material portion of our mega project sales by 2024. We launched two low-pressure PX at varying flow rates as we seek to unlock portions of the brackish water with our PX.
Brackish is very common in the United States and Europe, but has remained out of the reach of the PX until now. We believe we can potentially capture material incremental revenue from this market as we seek to achieve our $230 million-$270 million target in total water revenue by 2026. We will also continue to invest in core engineering research in 2023. This is not an easy task when we are already producing a product with efficiencies near the limits of physics. However, one, we must think about how to further evolve the PX to expand our opportunity set in desalination, industrial wastewater, and water reuse in the coming years. Now let's turn to wastewater, where we have had a few notable developments.
We generated nearly $4 million of wastewater revenue in 2022, nearly 30% over our target for the year. Importantly, we have now increased our gross margin to one much more akin to our desalination business. The Ultra PX continued to prove its value to customers in the field. The recent introduction of our low-pressure product line also expands our reach into wastewater. We're now positioned to actively address some of the largest municipal wastewater projects in the world, including initial projects in the Middle East on the basis of this new line. Municipal wastewater, in particular potable reuse, is a natural extension of our water business. Many regions are beginning to turn to potable reuse to help address their growing water shortages, including the Middle East and here in the United States. As we learn more about this potential market, we'll keep you updated.
Overall, wastewater is already generating a clear profit and paying for itself. This year, we're adding to our sales team in China and India. We're also continuing investments to improve and expand our line of products. Wastewater is a clear example of how we can successfully apply our existing PX technology swiftly to new and adjacent industries with minimum investment. Let's turn to our CO2 business. We have now shipped PX G1300s to six separate OEMs and are soon shipping to a seventh. During our third quarter call, we spoke about the sale of multiple PXs to PXGs to an industrial refrigeration manufacturer in Europe. This manufacturer, Fieuw Koeltechniek, is a leading refrigerant component and service provider for the Benelux region of Belgium, the Netherlands, and Luxembourg. Fieuw expects to commission the first installation with two PXG units at a Carrefour store in Benelux.
Carrefour is one of the largest supermarket chains in Europe and in the world. Following a visit in January, Fieuw placed a second order for six additional units to be deployed this year, and we are currently negotiating a distribution agreement with Fieuw for the PXG in the Benelux region. This relationship is the first formal step in building a broader pipeline and backlog, and a critical achievement for Energy Recovery in the refrigeration space. As we progress through this year, we will look for more regional distribution agreement like the one we are discussing with Fieuw for the Benelux region. Even more importantly, in 2023, we look to continue initial PXG installation breakthroughs into end user supermarket chains to verify potential sales pipeline.
Our potential pipelines already include Vallarta stores in California, Carrefour stores and the large Southern Europe chain in which Epta commissioned a PXG last summer. In 2023, our priority is to turn in as many of the European and the U.S. supermarket chains into what we call the confirmed addressable markets, which will build confidence in growing our refrigeration business and in hitting our revenue targets of $100 million-$300 million by 2026. In support of these actions, we are hiring additional sales account managers for Europe and North America. Our first Europe sales account manager started this January, we'll also be hiring field technicians to assist our partners as we roll out in the coming months. Additionally, we commissioned our PXG at the NTNU, the Norwegian University of Science and Technology.
NTNU is considered the critical research facility to confirm performance data on new technologies in the refrigeration space in Europe. We have been very pleased with our performance on NTNU's refrigeration rack the past months, and we'll be presenting this data at EuroShop in Germany next week. This performance data should provide objective third-party verification of the strengths of our technology. In addition to exploring additional regional distribution agreements For the PXG at EuroShop 2023, we'll be joining the Epta Group, our European joint development partner, at that event. Epta is a leading player in the refrigeration market in Europe and in the United States through their subsidiary, Kysor Warren. Together with Epta, we will be showcasing to end users the impressive results of our first deployment in Southern Europe during last summer's record high temperatures as part of Epta's push into new and sustainable products.
We have previously discussed how the PXG can help alleviate the stress of ever-increasing temperature highs on refrigeration systems. Today's supermarkets building extra refrigeration capacity to handle the hottest days of the year. The historical high temperatures we experienced last year in many parts of the world exceeded the design maximum capacity of many refrigeration systems. This caused some supermarket chains to shut down their stores to avoid losing refrigerated inventory. This is a significant loss of revenue and profit. Our PXGs unique ability to provide additional capacity as temperatures rise means you no longer need to overbuild a system if our PXG is installed. In fact, our technology can help handle these unexpected spikes in temperatures where it is needed most at a significantly lower cost than existing technologies, protecting their operating margin.
We still have much to do to achieve our $100 million-$300 million targeted revenue in 2026, but momentum is clearly building. Market interest is strong, and the demand for solutions such as our PXG is there. As we continue to demonstrate the reliability of our PXG, our confidence in hitting our targets will be further solidified. I look forward to provide further updates during our next call in May. With that, I'll turn the call over to Josh.
Good afternoon, everyone. I'll start with revenue. We generated $121.6 million in desalination revenue and nearly $4 million in industrial wastewater in 2022 for a combined total growth of 21% for the year. Mega projects continued to pick up pace as expected, growing nearly 9% in 2022, and OEM and aftermarket achieved 64% and 36% growth respectively. Desalination OEM revenue, excluding industrial wastewater, grew nearly 50% to $25 million, exceeding our previous annual high in desalination OEM sales by 9%. The geographic dynamics of our 2022 revenue are also important. We continue to see a steady growth in the Middle East and Africa of 10% for the year, an acceleration from 2021's increase of only 6%. Asia is where the real story lies.
We achieved over 30% growth in 2022 on the heels of over 150% growth in 2021. This rapid increase over the past few years highlights major freshwater issues in Asia. Countries such as China and India are turning to desalination and filtration of wastewater to help alleviate their water problems. We are beginning to see sales in other countries outside of China and India, which made up 16% of industrial wastewater sales last year. Last quarter, I had referenced $4 million of at-risk backlog in Egypt that was delayed due to local hard currency capital controls. We were able to realize about half of that at-risk backlog, with the balance expected to be shipped this year.
We will retain our desalination revenue growth guidance for 2023 of 3%-7% or $125 million-$130 million. We continue to expect desalination revenue to be heavily weighted to the third and fourth quarters, with up to 70%-80% of revenue occurring in the second half of the year. We are currently anticipating revenue within the lower to mid-range of our $10 million-$15 million guidance for the first quarter. Our range remains the same at $20 million-$25 million in the second quarter, with the balance occurring in Q3 and Q4. We are also maintaining our industrial wastewater target of $6 million-$8 million in revenue in 2023 for a combined water revenue of $131 million-$138 million.
Last quarter, I mentioned three risks to growth that we are closely monitoring this year: inflation, the strengthening U.S. dollar, and the potential for a global economic downturn. Although these risks remain, two of the three risks have alleviated somewhat over the past few months. The rapid strengthening of the U.S. dollar against many of the local currencies in the countries into which we sell has softened, and we have seen that inflation is beginning to be addressed in many of these same countries. We are continuing to monitor if these risks could affect revenue or our pipeline this year and next, and we'll keep you apprised. Let's turn to gross margin, where we significantly exceeded the upper end of our target for 2022. Our overall gross margin performance for the year was driven by three factors.
One, the success of our sales team in increasing pricing in response to inflation. Two, a product mix that shifted heavily to the PX in the fourth quarter. Three, our outperformance in industrial wastewater and improved pricing in those markets, which helped increase our overall margin by about half % for the year. We are maintaining our 2023 outlook of 64%-66% average gross margin for the year for water. However, our first and potentially second quarter margin may come in lower than this average because of our shift in product mix in favor of the PX in the fourth quarter last year. We are currently projecting 60%-64% gross margin in the first quarter, largely dependent on the final product mix of sales.
Note that we have seen lower margins in prior years in quarters more weighted to OEM and aftermarket sales. This is not a new phenomenon. The second half of 2023 will likely be heavily weighted to mega project PX shipments, where margins will improve and balance out the year. Let's turn to operating expenses. We ended the year with OpEx slightly less than 50% of revenue, or 48% when adjusted for one-time non-recurring expenses compared to 55% in 2021. While sales and marketing increased by 1% in 2022 to 13% of revenue, we saw declines in G&A from 24%-22% and R&D from 19%-13%, excluding any one-time non-recurring expenses. Our OpEx guidance for 2023 remains unchanged at 52%-53% of revenue this year, excluding any potential upside from CO2 refrigeration revenue.
I mentioned during the last call that sales and marketing would increase 30%-40% this year, pushing this spend to 17%-18% of revenue. I expect G&A to grow only in the low to mid single digits, largely driven by inflation. R&D spend will likely remain flat in 2023. Both G&A and R&D spend should flatten or fall somewhat as a % of revenue this year, which is in line with our longer term targets. With regards to net income, note that our first and second quarters will show negative income. Keep in mind that sales are significantly lower in the first two quarters, but our OpEx is relatively fixed and growing. This is simply because of the lumpy nature of our quarterly sales due to the timing of mega project shipments and has happened in past quarters as well.
We will see a significant uptick in profitability from our larger sales in Q3 and Q4, which will balance out the year. We ended the year with $93 million in cash and securities falling within our target despite returning $26 million to shareholders last year as we wrapped up our $50 million share buyback program. Our overall operating cash flow was $12.6 million, slightly below the 2021 flow. Operating cash was driven by two main factors in 2022. First, inventory grew by $8 million for the year. Second, because revenue was heavily weighted to the fourth quarter last year, our accounts receivable balance is significantly higher than in previous years. This increase in receivables is simply due to the timing of these late year sales. We have seen no delays in collections nor any increase in doubtful accounts.
We expect to collect the majority of this receivables balance in the first quarter. As we look forward to 2023, it's important I comment on inventory. As I stated earlier, we expect to ship only 20%-30% of our 2023 revenue in the first half of this year, with 70%-80% of revenue to ship in Q3 and Q4. In order to meet this high demand in the second half of the year, we must continue to build product in the first two quarters. Therefore, you should expect substantial growth in finished goods inventory in Q1 and Q2. By the end of the second quarter, we could see an inventory balance as high as $40 million. This balance should subsequently fall in the second half of the year.
By the end of the year, based on water demand, we expect inventory levels to end the year roughly in line with 2022. Any additional increase or rise would be driven by our CO2 business, which we will communicate as the year plays out. Based on our first and second quarter shipment expectations, we should see lower than normal cash and investment balances by the end of the second quarter, possibly falling to a range of $70 million-$80 million, which should subsequently rebound in the second half of the year. Depending on the timing of shipments in the fourth quarter, we should end the year with between $110 million-$120 million in cash and securities driven by growing operating cash flow. Let's move to Q&A.
Thank you. We will now be conducting a question and answer session. If you would like to ask a question, please press star one on your telephone keypad. A confirmation tone will indicate your line is in the question queue. You may press star two if you'd like to remove your question from the queue. For participants using speaker equipment, it may be necessary to pick up your handset before pressing the star keys. One moment please while we poll for questions. Thank you. Our first question is from Graham Price with Raymond James. Please proceed with your question.
Hi, good afternoon, and thanks for taking the questions. I guess for my first one, you talked about the refrigeration distribution agreement in the Benelux region. I was wondering if you could just give a little more detail on how big that revenue opportunity is, and how you see that playing out over the coming years.
First, Graham, just to highlight, this is Josh, and I hope you're doing well. Want to note that we did just release a press release here this afternoon that we did sign that agreement with Fieuw, today, so that agreement's live in the Benelux. The Benelux, you know, obviously with the population count that it has is gonna be a smaller amount of revenue that we're gonna be able to realize in Europe.
It's a very important and key milestone for us signing this agreement as it shows an important proof point, and confidence in the ability of our technology to reduce costs for supermarkets and industrial sites and so forth.
Got it. I guess as you sign additional agreements, do you think those will be exclusive in nature as well?
Some definitely yes. Whether all of them will be exclusive, we don't know at this point.
Got it. Understood. Maybe switching gears a little bit, it's been roughly six months since Gavin Newsom talked about ramping up diesel in California. Just wondering if you've seen any evidence that anything is changing in a large sense in that area.
The short answer is no. California and diesel, you know the story.
Got it. Okay. Under-understood. Then I guess final one for me, you know, just on the cash balance, obviously ended the year at a very healthy level and didn't see any buybacks this quarter. You know, was just wondering and I know I'm guessing kind of the inventory build and the back-end-weighted revenue plays into it, but how are you thinking about buybacks for the rest of the year?
Right now, Graham, we're really looking at how our markets could evolve here over this year. For example, you know, we have more confidence in where water's headed, and we've built a lot of capacity for that as well as inventory at this stage. CO2 is still a bit of unknown, and we could have pretty substantial investments in CO2 if it accelerates in the latter half of the year, as well as we talked about before, potential additional fixed assets investments in order to build up capacity for that business. At this stage, we're watching that because we're gonna need cash for that build, both for working capital and fixed assets.
To say nothing of the kind of the low cash flow we're gonna have in the first couple quarters just because of sales. I wouldn't expect anything in the near term. It is something we keep obviously discussing, you know, with the board.
Okay. Perfect. That's it for me. I'll pass it along. Thank you very much.
Thanks, Graham.
Thank you.
Thank you. Our next question is from Nils Thommesen with Fearnley Securities. Please proceed with your question.
Good afternoon. I'm just wondering, given that you're now shipping out a couple of these PXG units to Europe and other markets, do you have sort of a lower range in terms of revenue to communicate for 2023, or is it still too early?
It's still too early. That's why we're highlighting that, our emphasis is on breaking through into new supermarket chains or what we call confirmed addressable market. That's what we're following. Actually, we find out that this has been very conservative industry in adopting new things. But our value proposition is such, we are very confident once we break into a new chain, that whole chain becomes a pipeline, then we can meaningfully discuss timing and the volume.
Right. At what point do you expect that you can make a decision on potentially building another plant or facility to add capacity to CO2? That's, you know, sort of a 2023 event.
Right now, we have excess capacities in our kiln. As you know, it's the same aluminum oxide material. We think probably is toward the end of the year, fourth quarter, we have to look at the capacity increase.
All right. Thank you.
To be clear, those investments would occur next year, most likely, right? Even if we started the process this year. We'll give more updates in the latter half of the year in terms of how that cash outflow would look like.
All right. Great. Thanks.
Thank you. Our next question is from Ryan Pfingst with B. Riley Securities. Please proceed with your question.
Hey, guys. thanks for taking my question here. I know the last time we spoke, we talked about, you know, exiting this year with a backlog allowing for sales in the double-digit million range for 2024 for CO2 refrigeration. Josh, on the 3Q call, you spoke about the potential for diesel growth to once again reach 20% again in 2024. Is that still how you guys are still thinking about those two items?
Yeah. As of today, those are how we're still looking and, you know, with CO2 in particular, we'll see how this year plays out, but that's certainly the targets we're pushing for. Then on, as I mentioned today in my prepared remarks on the diesel side, we're just very closely watching the market, in terms of these major risks that we're seeing globally. We'll certainly keep you guys apprised as well as this year progresses. Where we stand today, yeah, no changes.
Yeah. We touched on California a little bit, but, you know, with the Colorado River running low and getting more attention and, you know, I think just the growing problem of less available water here in the U.S. Are you guys seeing talks around domestic desalination demand picking up steam, you know, recently?
Recently, I glanced at a very interesting, helpline says that Arizona may be considering building desalination for Mexico to trade for Mexico's Colorado quota. I don't know how true is that. If that's true and that's doable, maybe this pure speculation with California's reticence on desalination, maybe California would also trade Colorado quota with Mexico desalination.
Got it. Maybe just one more from me. Obviously your market share in the core business has been really impressive for a long time, but could you maybe talk about the competitive landscape a little bit and anything you're keeping an eye on that could potentially challenge the.
We always keep an eye on competition. There is nothing new to report from what we reported last quarter. If they're out there, we're watching.
Excellent.
On the other hand, as you said, our Q400 is being received very well. In some ways competition was gearing up targeting our Q300. Now we have Q400.
Got it. Good to know. Thank you.
As a reminder, if you would like to ask a question, please press star one on your telephone keypad. A confirmation tone will indicate your line is in the question queue. Our next question is from Wally Walker with Hana Road Capital. Please proceed with your question.
Yeah. Hey, guys. Congratulations on the quarter and the year. Aftermarket growth was impressive and accelerated at the year-end. Can you elaborate a little bit on rate of change and if that's a trend, and is it fair to think of that as recurring revenue going forward?
Yeah. Hey, Wally. Hope you're doing well. We saw some great growth in aftermarket this year as well as OEM, but we are expecting. Some of this was a kind of a post-COVID bounce in 2022, so we are expecting it to temper a bit this year, at least in terms of growth. This could mean it either flattening... With aftermarket, I'd expect it to flatten or low growth this year compared to what we saw in 2022. Aftermarket's really a function of our installed base, right? So as we grow it grows with us. It's been a pretty stable, call it, eight to 10-ish% typically of revenue. That's kind of what we still anchor on, although it's a bit higher this year.
OEM as well, of course we saw this big COVID bounce. OEM I think this year we think could pretty much the same story. It's gonna revert back to its normal growth rate. We're kind of above that curve right now, which is why we're one reason why we talked about last quarter we're seeing somewhat lower growth this year is 'cause OEM's gonna get flattened or perhaps even be a little lower than this year just as it returns to its normal growth curve if that makes sense.
Yeah. One other for me please. Expected tax rates in 2023, how should we model for those?
That's a good question. That's something you know what. I probably should have included in my script, 'cause I think last quarter I talked about a 10%-15% expected tax rate. You know, as we've been looking at, we came in at about 8% this year, and what we're finding is we had a lot of changes last year. We've utilized all of our cumulative Net Operating Losses, which is great 'cause we're making, that means we're making money. We also, because we utilize those losses, we're starting to get a new benefit, starting last year called the foreign-derived intangible Income tax benefit, which is really, it's a tax benefit you get from exporting, right? It's pretty big for us. This year it was almost 7% for 2022.
We also get a pretty healthy R&D tax credit. Because of the fact that we used all of those NOLs, and they're now gone, it's actually gonna boost our foreign-derived intangible Income tax benefit , which means it's gonna be bigger this year. It could be. I'd probably revise our estimate down from 10-15 to more like 8%-12%, as we look forward at least for the next few years. That's excluding any effect we may get from our share-based comp tax benefit that we get 'cause that's pretty volatile and not dependent on us if that makes sense. Mostly driven by this FDII benefit which is pretty new.
Okay. Thank you.
You bet. Thanks, Wally.
Thank you. There are no further questions at this time. I'd like to turn the floor back over to James Siccardi for any closing comments.
Thank you everyone for joining us today. As a reminder, our prepared remarks and the most recent press releases can be found on the website. We look forward to speaking with you again in early May. I guess it's the third of May. Other than that, have a great weekend and have a great rest of your week, and we will be participating in follow-up calls over the next couple days. Thank you.
This concludes today's conference. You may disconnect your lines at this time. Thank you for your participation.