Energy Recovery (ERII) Q3 2026 earnings review
Energy Recovery cuts overhead, but war delays crush its margins
Energy Recovery, a maker of pressure exchangers for seawater desalination plants, lost both its profit margin and its cash cushion as Middle East project delays dragged on. Third-quarter revenue dropped 65% from a year ago to $11 million "due to the war in Iran", the company said, because revenue from giant desalination plants fell 95%. Gross margin fell to 38%, and free cash flow swung to a $10 million burn.
| Revenue | $11.2M -65% from a year ago |
|---|---|
| Gross margin | 37.5% 74.7% last quarter and 64.2% a year ago |
| Free cash flow | -$10.1M +$15.4M last quarter |
| Full-year revenue outlook | None given withdrawn in Q1; discussed only in letter |
⚖️ Verdict: 🔴 Bearish
The story got worse because low factory volume finally crushed profitability and turned cash flow negative. Last quarter, gross margin reached 75% and customer collections brought in cash, masking the sales freeze; this quarter, fixed factory costs cut gross margin in half while unsold inventory rose to $44 million. One bright spot: closing the carbon dioxide refrigeration unit helped cut operating overhead by 17%.
The question now is whether stalled Middle East water projects will ship in time to clear the $44 million inventory pile without write-downs. Either delayed construction restarts because regional water scarcity forces governments to finish the plants, or war-related financing freezes turn those delays into cancellations. Fourth-quarter megaproject shipments and the contracted backlog in the quarterly filing will tell.
🐂 Bull Case
Cost Cuts Reduced Quarterly Overhead by 17%
Energy Recovery spent the first half of the year shutting down its carbon dioxide refrigeration unit to focus on water treatment. That exit is now showing up in lower overhead, as the company booked zero restructuring charges this quarter and cut total operating expenses by 17.2% from a year ago to $14.0 million.
The savings came "primarily due to lower employee compensation costs, including stock-based compensation expense, and lower consulting costs", the company said. Spending inside the Corporate and Other division, which previously housed the exited refrigeration project, dropped 32.1% from a year ago to $6.8 million. Lower overhead kept the operating loss from widening even further during the sales slump.
What to watch: fourth-quarter operating expenses in the Corporate and Other segment. Another drop below $6.8 million would show that the water equipment maker has further room to trim central overhead.
Positives This Quarter Didn't Test
Two standing drivers from earlier in the year could not be measured from the third-quarter earnings release because management places its operational updates in a separate shareholder letter and quarterly filing.
- Contracted water backlog and five-year project pipeline: not in the release; the shareholder letter and the remaining performance obligations note in the quarterly filing will show whether the $27.0 million order book held up.
- Saudi Arabia assembly facility: not in the release, though third-quarter capital spending was $0.5 million by our math ($2.1 million for the first nine months); the filing will show whether equipment installation has started.
🐻 Bear Case
Low Factory Volume Cut Gross Margin in Half
Last quarter, Energy Recovery posted a 74.7% gross margin even as sales fell, because smaller equipment orders and replacement parts carry higher markups than giant water plants. That raised hopes that lower factory overhead and a shift toward smaller orders would protect profitability while large Middle East projects sat on hold.
Third-quarter results broke that pattern. Even though giant water plants fell to just 8.3% of revenue from 22.6% last quarter, gross margin dropped 37.2 percentage points from the second quarter to 37.5%. Cost of revenue—the direct cost of making its pressure exchangers—jumped to 62.5% of sales from 35.8% a year ago. The drop occurred "primarily due to lower volume as well as product mix and indirect manufacturing costs, partially offset by channel mix", the water technology group said.
This matters because the company cannot cover its fixed California factory costs when quarterly revenue sits near $11 million. Desalination segment gross margin fell to 38.0% from 75.8% in the second quarter, swinging the core water division from a $2.8 million operating profit last quarter to a $1.6 million operating loss.
What to watch: fourth-quarter gross margin alongside desalination revenue. If sales remain suppressed and gross margin stays below 50%, fixed factory costs are overwhelming the benefit of selling higher-margin replacement parts.
Regional War Froze Large Water Projects
Energy Recovery relies on megaprojects—large-scale seawater desalination plants, mostly in the Middle East—for the bulk of its sales. Those customers have delayed project schedules, and the freeze worsened in the third quarter. Total revenue fell 65.0% from a year ago to $11.2 million, swinging the business to a $9.8 million operating loss "due primarily to lower revenue due to the war in Iran", the company said.
- Megaproject sales: $0.9 million, down 95% from $18.4 million a year ago and down from $2.7 million last quarter
- Original equipment manufacturer (OEM) sales for smaller plants: $6.2 million, down 31% from a year ago
- Aftermarket replacement parts: $4.0 million, down 13% from a year ago
The slump is no longer confined to giant construction sites. Smaller OEM orders and replacement parts both shrank compared with last year, leaving the manufacturer without a revenue cushion while large plants remain stalled.
What to watch: fourth-quarter megaproject revenue against last year's $49.6 million peak. A third straight quarter near $1 million to $3 million would confirm that Middle East construction delays are extending into 2027.
Unsold Inventory Rose as Customer Collections Ended
During the first half of 2026, Energy Recovery generated $35.7 million in free cash flow despite heavy accounting losses because it collected $64.0 million in unpaid customer bills left over from the end of 2025. Meanwhile, its factories kept building pressure exchangers for delayed water projects.
In the third quarter, that cash buffer ran out. Uncollected customer bills fell to just $10.7 million, leaving little left to collect, while unsold inventory climbed another $5.8 million from last quarter to $44.1 million—up 81.6% since December. As a result, the company burned $10.1 million in free cash flow during the quarter. By our math, management also spent $2.8 million buying back shares in the third quarter, reducing total cash and investments by $12.5 million to $85.6 million.
What to watch: net inventories on the fourth-quarter balance sheet. If inventory rises above $44.1 million while shipments stay frozen, cash burn will continue and the risk of equipment write-downs will grow.
Wastewater Sales Fell Below Half a Million
Management has promoted industrial wastewater treatment as its primary growth business outside seawater desalination. Instead, wastewater sales dropped 83.1% from a year ago and 7.2% from the second quarter to $476 thousand. The division posted a $1.4 million operating loss for the quarter and a $5.5 million loss over the first nine months, proving that cost reassignments have not restored Asian equipment demand.
- Wastewater third-quarter revenue: $476 thousand, down from $513 thousand in Q2 and $2.8 million a year ago
- Full-year financial outlook: still absent from the earnings release after being withdrawn in the first quarter
- Executive leadership and customer concentration: no permanent chief executive or finance chief named in the release, and geographic sales tables wait for the quarterly filing
What to watch: fourth-quarter wastewater revenue. A third straight reading near half a million dollars would show that industrial wastewater cannot offset any weakness in desalination.
💲 Other KPIs
Total cash, cash equivalents, and marketable securities fell by $12.5 million from $98.1 million at the end of the second quarter, driven by $10.1 million in free cash flow burn and $2.8 million in share buybacks by our math. The balance remains $2.3 million above year-end 2025, and the company carries no debt.
Uncollected customer bills dropped another $3.6 million from the second quarter and are down $67.6 million from $78.3 million at the end of 2025. Collecting those prior-year bills generated $45.0 million in working-capital cash over the first nine months, a source of cash that is now largely exhausted.
Average diluted shares fell 4.6% from 53.5 million a year ago and 0.8% from 51.5 million in the second quarter. Energy Recovery spent $23.2 million on share repurchases and excise taxes during the first nine months of 2026, slowing its buyback pace to $2.8 million in the third quarter by our math.
🔮 Guidance
No formal outlook table appears in the earnings release, as management discusses its 2026 outlook in a separate shareholder letter. In the third quarter, capital spending was $0.5 million by our math, bringing the nine-month total to $2.1 million. That pace tracks below the middle of the $3.0 million to $6.0 million full-year capital plan management reaffirmed last quarter for its Saudi Arabia facility.
❓ Key Questions
What is the current contracted backlog and delivery schedule?
The press release does not include the contracted backlog figure, which stood at $27.0 million last quarter. Investors need to know whether new project awards kept pace in the third quarter and whether any delayed Middle East shipments now have firm 2027 delivery dates.
Why did indirect manufacturing costs spike in the third quarter?
Gross margin fell from 74.7% in the second quarter to 37.5% on a similar $11 million revenue base. Management needs to explain how much of the 37.2-point drop came from fixed factory under-absorption versus one-time manufacturing expenses or inventory adjustments.
Will factories slow production to stop the inventory build?
Net inventories reached $44.1 million, nearly four times third-quarter revenue, contributing to a $10.1 million free cash flow burn. Management has not said when it will throttle back California production if Middle East project delays persist.
When will the board appoint a permanent CEO and CFO?
Energy Recovery has operated with both an interim chief executive and an interim finance chief since the second quarter. The earnings release provided no timeline for filling either permanent leadership role.