Solid Power (SLDP) Q3 2026 earnings review
Solid Power cuts cash burn, but commercial sales nearly vanish
Solid Power, a developer of solid-state battery materials, started up its new production line while commercial revenue nearly disappeared. Commercial sales excluding government grants dropped 93% from a year ago after an earlier equipment installation contract with battery maker SK On finished. Chief executive John Van Scoter cut the full-year cash spending plan to $75–85 million, which by our math leaves $23 million of cash burn for the fourth quarter.
| Commercial revenue (excluding grants) | $243K -93.5% from a year ago |
|---|---|
| Operating loss | $29.8M wider by 22.2% from a year ago |
| Total liquidity | $397.6M $419.3M last quarter, zero debt |
| Full-year cash burn outlook | Cut $12.5M new range: $75–85M |
⚖️ Verdict: ⚪ Neutral
The story is unchanged because factory progress and lower cash burn offset the wait for new customer contracts. Solid Power began feeding material into its MOBIUS electrolyte line and clarified that the line adds 45 metric tons of annual capacity to reach 75 metric tons in total, resolving a worry that management had reduced the project's size. The bad news: operating loss widened 22% as consulting fees pushed overhead costs up, and neither the South Korean joint venture nor a renewed Samsung SDI and BMW deal was signed.
The question now is whether partner testing turns into paid supply and joint-venture agreements before year-end. Bulls see rising upfront customer billings and pilot-line startup as proof that commercial deals are close, while sceptics warn that Korean manufacturing partners may capture most of the financial value. Fourth-quarter announcements on the Korea joint venture and the expired evaluation deal will tell.
🐂 Bull Case
Pilot Line Starts Up and Solves Capacity Mystery
Solid Power develops solid-state battery materials, centering on a sulfide-based electrolyte that replaces the liquid inside standard batteries. For two quarters, a discrepancy hung over its new continuous production pilot line: earlier documents cited 75 metric tons of annual capacity, while chief executive John Van Scoter recently cited 45 metric tons without explaining the gap.
This quarter, the company named the line MOBIUS and "Introduced materials into our MOBIUS™ continuous electrolyte production line, with full commissioning expected by year-end 2026". It also settled the capacity question: "MOBIUS™ will add 45 metric tons of annual electrolyte production capacity, increasing total annual capacity to 75 metric tons". Alongside this, the battery maker "Completed Stage 2 of the ISO 9001 certification process, with certification on track for year-end 2026" and continued talks for a commercial-scale joint venture in South Korea using its lower-cost wet manufacturing process.
Clarifying that 45 metric tons is the addition and 75 metric tons is the company total removes the risk that management quietly cut the project's scope. What to watch: the formal announcement of the South Korean joint venture by the end of the fourth quarter. Signing a partner on clear financial terms would prove that battery makers want scale access to this production process.
Cash Burn Plan Cut, Extending the Runway
Because Solid Power is years away from commercial battery sales, its survival depends on how fast it spends its cash hoard. Management tracks this through cash investments, which combine cash used in daily operations with capital spending on factory gear.
The company lowered its full-year cash investment plan from $85–100 million to $75–85 million, citing a focus on "optimizing expenses". Cash investments totaled $21.5 million in the third quarter and $56.6 million over the first nine months, including $4.7 million of third-quarter capital spending for the MOBIUS line. That leaves $397.6 million in total liquidity on the balance sheet.
Cutting the spending plan for a third straight year shows discipline, because by our math the new $80 million middle of the range gives Solid Power nearly five years of cash runway. What to watch: fourth-quarter cash investment against the $23.4 million implied by the full-year outlook. Landing near or below that figure would confirm that pilot-line construction bills are tapering off as planned.
Customer Prepayments Rebound Ahead of New Deals
Deferred revenue represents cash that partners have paid upfront for engineering work or battery material that Solid Power has not yet delivered. Because current balances turn into recognized sales within twelve months, this line is the clearest indicator of near-term customer activity.
Total deferred revenue rose 150% from last quarter to $3.09 million, adding $1.86 million in net new upfront billings by our math while related-party balances fell to zero. That builds on the second quarter, when deferred revenue rose from $370 thousand to $1.24 million during electrolyte deliveries to Samsung SDI and SK On.
Two straight quarters of rising prepayments matter because they provide a buffer of future revenue while older installation contracts roll off. What to watch: whether deferred revenue holds above $3 million in the fourth quarter. A rising balance would show that partner sampling is generating paid work even before a new master contract is signed.
🐻 Bear Case
Commercial Revenue Nearly Vanishes Between Partner Deals
Solid Power relies on big battery makers and automakers — specifically SK On, Samsung SDI and BMW — to fund its research and buy its electrolyte material. Earlier this year, the company finished installing a pilot cell line for SK On, ending the milestone payments that drove last year's sales, while the first phase of its evaluation deal with Samsung SDI and BMW was set to expire on September 30.
In the third quarter, commercial revenue excluding government grants dropped 93.5% from a year ago to $243 thousand. Last quarter, commercial revenue was negative $1.02 million after a $1.2 million accounting reversal; stripping out that one-off adjustment, underlying commercial revenue rose by $60 thousand from the second quarter's $183 thousand level by our math. The release mentioned sample deliveries to Samsung SDI and SK On, but announced no new collaboration contract with either partner.
With commercial battery production at SK On not expected until 2029 and bulk sales waiting until 2030, failing to sign follow-on development deals leaves Solid Power with almost no commercial revenue to offset its spending. What to watch: any fourth-quarter announcement renewing the Samsung SDI and BMW evaluation agreement or replacing the SK On contract. Without new signed agreements, commercial sales will stay near zero.
Consulting Fees Widen Losses Despite Cost Claims
When cutting its full-year cash burn outlook, Solid Power pointed to "optimizing expenses" as a driver of the lower spending range. However, the income statement shows overhead costs moving the opposite way.
- Selling, general and administrative expense (overhead and legal costs): $9.81 million, up 38.7% from a year ago and 14.9% from last quarter
- Overhead share of total operating expenses: 31.6%, up 7.2 percentage points from 24.4% a year ago by our math (and up 646 percentage points as a share of revenue)
- Operating loss: $29.8 million, wider by 22.2% from $24.4 million a year ago
Management said the quarterly cost increase was driven by "strategic consulting fees supporting our commercial readiness objectives", while research and development spending barely moved at $18.7 million. Because cash investment fell only on working-capital collection timing — such as turning a $7.5 million contract asset into cash earlier this year — underlying cost discipline is weaker than the outlook cut suggests. What to watch: fourth-quarter selling, general and administrative expense. A reading near $10 million again would show that higher overhead is sticky rather than a one-time consulting bill.
Share Dilution and Warrant Gains Mask Wider Losses
Headline net loss per share improved from $0.14 a year ago to $0.11 this quarter, and total net loss narrowed 5.9% to $24.4 million. A reader looking only at the bottom line would think the business is losing less money.
In reality, non-operating items and heavy share issuance drove the improvement. Solid Power recorded a $1.57 million accounting gain from the changing fair value of warrant liabilities, compared to a $3.46 million loss a year ago, alongside $3.98 million in interest income. Excluding the warrant swing, pretax loss widened 20.4% from a year ago to $25.8 million by our math. Meanwhile, weighted average shares jumped 25.1% from a year ago to 228.2 million after stock offerings earlier in the year, spreading the loss across more shares and leaving 45.6 million long-term warrants hanging over the share count.
What to watch: fourth-quarter non-operating income after the older public and private warrants expire in December 2026. Once those accounting gains end, reported net loss will track the wider operating loss much more closely.
👓 Other Themes
Solid Power Chases Robotics and Drones as EVs Lag
With electric-vehicle battery demand developing slowly in the United States, Solid Power is pitching its solid-state technology to new industries. Chief executive John Van Scoter said that "While EVs will continue to be our north star as we scale up, we are also actively pursuing new markets for our technology", pointing to early testing collaborations in humanoid robotics, drones and defense.
💲 Other KPIs
Total liquidity — cash plus marketable securities available for sale — fell 5.2% from last quarter's $419.3 million, but remains up from $336.5 million at year-end 2025 following January's $121.3 million stock offering. Solid Power carries no debt, so the $21.8 million quarterly drop closely matched its $21.5 million in cash investments.
Accounts receivable — money billed to customers and grant agencies but not yet collected — nearly doubled from $3.19 million last quarter and $2.16 million at year-end 2025. Because third-quarter revenue and grants totaled $1.22 million, the $2.98 million rise in receivables matched the jump in deferred revenue, meaning new customer billings remain uncollected.
Federal grant income rose 18.5% from a year ago and 31.0% from last quarter's $749 thousand. The US Department of Energy reimbursement offsets construction costs on the MOBIUS electrolyte line and supplied 80.1% of the battery developer's total revenue and grant income this quarter as commercial contract revenue shrank.
🔮 Guidance
Cut by $12.5 million at the middle of the range (a positive revision for cash preservation). The new plan puts full-year cash burn 4.3% below 2025's $83.6 million actual spend. By our math, that leaves $23.4 million for the fourth quarter, up slightly from $21.5 million in Q3 and in line with $23.0 million a year ago. Solid Power also underspent its initial cash burn plans in 2024 and 2025.
❓ Key Questions
What is the status of the Samsung SDI and BMW agreement?
Phase one of the Joint Evaluation Agreement with Samsung SDI and BMW was set to expire on September 30, 2026. Did the partners sign a paid extension, or is Solid Power now shipping electrolyte samples without a formal revenue contract?
Why did strategic consulting fees jump by more than $1 million?
Selling, general and administrative expenses rose by $1.27 million from last quarter to $9.81 million on consulting fees for commercial readiness. Are these advisory fees for the South Korean joint venture, and will they roll off in Q4?
What drove the $1.86 million jump in deferred revenue?
Current deferred revenue rose from $1.24 million to $3.09 million while accounts receivable rose by $2.98 million. Which customer was billed for these upcoming deliverables, and when will the work be recognized as revenue?
Will the South Korean joint venture be signed by year-end?
Management previously committed to announcing a commercial-scale electrolyte joint venture in South Korea by the end of 2026. With two months left in the year, the release noted only that discussions advanced. Does the year-end target still hold?