Eos Energy (EOSE) Q1 2026 Earnings — Key Performance Indicators
Snapshot of revenue, backlog, liquidity, and operations as reported in the May 13, 2026 release. Sparklines show recent trend.
EOSE Bull vs Bear Case — Evidenced Arguments on Both Sides
Eight bull points and eight bear points, each evidenced by a primary source. The page below digs into the data behind each one. Disagree with any point? Check the source link.
▲ Bull case
▼ Bear case
Frontier Power USA & Frontier Power Ltd. (UK) — Cerberus-Eos Long-Duration Storage Joint Ventures
Frontier Power Ltd. (UK) is a 2009-vintage UK developer with a 5 GWh Eos framework, a booked 228 MWh first order (Oct 2025), and ~11 GWh in Ofgem's Cap & Floor Window 1 second-round evaluation (approval pending). Frontier Power USA is a separate co-funded IPP formed May 13, 2026 — Cerberus $100M anchor + Eos ~$150M target contribution (contingent on a rights offering + approvals) — with a 2 GWh anchor reservation. They share a brand family and a Cerberus connection but are distinct vehicles. Coverage often conflates them — the "11 GWh" figure belongs to the UK entity.
🇬🇧 Frontier Power Ltd. (UK)
Sources:
🇺🇸 Frontier Power USA
Sources:
The last 90 days, in three beats
Context that makes the current setup readable — the FY25 guidance miss, the AI-data-center pivot, and the Q1'26 reset.
Revenue ramp & path to profitability
Actuals through Q1’26 (filed May 13, 2026); projections beyond are model assumptions consistent with management's reaffirmed FY26 guidance ($300–400M). Hover any bar for detail.
Quarterly revenue · 1Q’23 → 4Q’28E
Total cash & runway
Gross margin · path to breakeven
Operating income
Quarterly financial summary
| Quarter | Revenue | Gross Margin | Op. Income | Cash | Type |
|---|
EOSE Capital Structure — Debt, Preferred, Warrants, and Shares (as of March 31, 2026)
The reported $868M shareholders' deficit is driven by non-cash mark-to-market adjustments on Cerberus warrants and preferred instruments — it does not reflect cash consumed or owed. The pieces below show how the line items reconcile.
Liabilities & preferred
Equity, shares & key items
⚠ Reading guide
Manufacturing ramp · five-line plan
Thorn Hill, PA. Each line targets ~2 GWh annual capacity at full ramp. Line 2 install/power-on underway in Q2'26; initial production targeted for end of Q2'26 per the Q1'26 release. Cumulative discharged energy on Eos technology has crossed 6.0 GWh.
GWh annual capacity · stacked by line
Production KPIs
Production uptime trend
Graphite felt deliveries
Eos Product Family — Z3 Zinc-Bromide Battery, Indensity Architecture, Cube BESS, DawnOS Controls
One chemistry (Znyth® zinc-bromide), one module (Z3), two hardware form factors (the original containerized Cube and the new high-density Indensity architecture), and one controls layer (DawnOS). Every figure below is sourced from the live eose.com solution pages or from Eos' own published datasheets.
Key attributes
Target applications
Sources
Capabilities
Security & sovereignty
Sources
Competitive landscape — LDES & bulk storage
| Tech | Lead | Duration | Status | Eos edge |
|---|
$24.3B pipeline · $644.6M backlog · +2 GWh post-Q1
Pipeline grew 56% YoY in Q1'26; backlog ended at $644.6M / 2.6 GWh. Post-quarter, the Frontier Power USA 2 GWh capacity reservation adds materially to the Q2'26 figure. Conversion is the open question — CEO Mastrangelo on Q1 call: "turning a $24 billion pipeline into installations discharging energy." Pipeline ≠ contracted backlog ≠ recognized revenue.
Opportunity funnel
Contracted backlog over time
New bookings per quarter
Signed contracts & key customers
| Customer | MWh | Region | Status | Est. value |
|---|
Three regulatory decisions in the next ~5 months sit on the LDES bankability problem
These programs are not "potential customers" — they are regulated revenue-floor mechanisms designed specifically to make non-lithium long-duration storage financeable. Eos hardware sits in the application stack on both. The decision dates are the regulators' own stated timing; the outcomes will materially shape the FY27 picture in either direction. Framed below as a window, not a prediction.
⏱ Decision window · days to end of regulators' stated timing
What different outcomes mean for the FY27 model
🇬🇧 Ofgem Cap & Floor LDES Scheme
Timeline
Sources:
🇺🇸 NYSERDA Bulk Storage / Index Storage Credit
Timeline
Sources:
From bubble-era multiple to real revenue
P/S compressed from 189× (FY20 SPAC peak) to ~12× on FY25 revenue. The next leg comes from FY26 guidance ($300–400M) and Frontier-driven backlog conversion. Scenario analysis frames FY2028 outcomes against a $4.50 share-price anchor.
Price-to-sales multiple
Market capitalization
Revenue & margin bridge · FY25 → FY28E
Scenario analysis · FY2028E
Sell-side consensus & recent rating actions
Seven covering analysts; consensus has compressed after the FY25 miss but bull cases lean on Frontier + data-center flow. Our Bull scenario ($17.67) basically matches the highest analyst PT ($18).
Consensus snapshot
Recent rating actions
| Date | Firm | Analyst | Action | Note |
|---|
Sentiment & data sources
Who's long, who's short, who's selling
Concrete positioning data — short interest, insider trades (both directions), institutional ownership, retail sentiment. Mixed signal by design; both bull and bear can find supporting evidence here.
Insider activity · summary
Institutional
Verify live:
Retail
Verify live: Stocktwits EOSE
Every Form 4 transaction, parsed straight from EDGAR
The 18 most recent insider transactions filed for EOSE (CIK 1805077), with the SEC transaction code, share count, price, dollar value, and a direct link to each filing. Read the codes carefully — derivative exercises (M) and tax-withholding shares (F) are NOT discretionary capital decisions; only P (buy) and S (sell) reflect insider conviction.
Full transaction log
| Date | Insider | Role | Code | Shares | $ / share | Value | Filing |
|---|
Verify live (always up-to-date):
What's circulating — and what the evidence actually shows
Specific bull and bear claims being discussed on Stocktwits, X, and message boards. We address each one with what the public record actually supports. Neither endorsing nor dismissing — just citing.
▲ Bull-side rumors
▼ Bear-side rumors
Upcoming dates & key milestones
What to watch over the next 24 months. Post-Q1'26 the near-term gates are Line 2 commissioning and Frontier funding close.
SEC filings & press coverage
Direct-linked recent filings (10-Q, 10-K, 8-K, S-3ASR) plus selected media coverage from the Q1 2026 release.
Recent SEC filings
News & press
OBBBA preserved 45X with FEOC guardrails — direction favors Eos, but final scoring not yet set
The One Big Beautiful Bill Act (signed July 4, 2025) preserved the 45X manufacturing PTC largely intact while adding "prohibited foreign entity" guardrails. Direction is positive for Eos' US-content supply chain. Treasury safe-harbor tables defining the scoring methodology aren't expected until end of 2026 — keep some powder dry on the magnitude of the tailwind.
Pending securities class action — Yung v. Eos Energy
Public-record litigation tied to the FY2025 guidance miss. Surfaced here because investor coverage routinely references it; the allegations are claims, not findings.
Case pages:
Who built this, why, and what it isn't
YMYL transparency — visible authorship and intent, because financial information deserves it.
About the author
Built and maintained by spotswoods — an independent investor researcher (github.com/spotswoods) — not an Eos employee, not financially compensated by Eos or Cerberus, no fiduciary relationship with any reader. Personal long-bias position in EOSE common stock; this page is the public artifact of one investor's research process.
Editorial intent. The page is designed so a skeptic can read it without feeling sold-to. Every numeric claim links to a primary source (SEC EDGAR, Eos IR, Ofgem, NYSERDA). Modeled figures are flagged with an asterisk and explained in §12 Methodology. Bull and bear cases are given equal real estate in §02 Scorecard. Rumors are addressed with what the public record actually shows in §09e.
Update cadence. Live price refreshes every ~5 minutes via a GitHub Action pulling a public Google Sheet (GOOGLEFINANCE). Q1 2026 financials sourced from the 10-Q filed May 13, 2026. The page is refreshed within days of any new material EOSE filing (earnings releases, 8-Ks). Full commit history at github.com/spotswoods/eose-dashboard.
What this dashboard is NOT
- Not investment advice — no recommendation to buy, sell, or hold any security
- Not a forecast — quarterly projections beyond Q1'26 are model assumptions, clearly labelled
- Not affiliated with Eos Energy Enterprises, Cerberus Capital Management, Frontier Power USA, Frontier Power Ltd., or any analyst firm cited on this page
- Not real-time market data — Google Finance is delayed ~15 min; GitHub Action adds another ~5 min cadence
- Not a substitute for reading the primary filings — every conclusion should be verified against the SEC-linked source
Found an error or stale figure? Open an issue at github.com/spotswoods/eose-dashboard/issues.
What could go wrong — and what's sourced vs. modeled
Bear-thesis cheat sheet plus an explicit methodology note for every figure on this page.
📋 Methodology — what's sourced vs. modeled
- Q1'26 income statement & balance sheet (10-Q filed 2026-05-13)
- Cash $472.4M, backlog $644.6M, pipeline $24.3B (8-K + 10-Q)
- Frontier Power USA deal terms (8-K Ex. 99.2)
- FY2026 guidance of $300–400M (reaffirmed in Q1'26 release)
- Capital structure: 339,459,021 shares, debt, preferred, warrants (10-Q)
- Customer concentration: 93.3% in Q1'26 (10-Q footnotes)
- All quarterly & annual projections beyond Q1'26 (consistent with guidance, but our assumptions)
- Contract $ values marked
*— derived from disclosed MWh × $225/kWh. Anchored to Iceberg Research (Oct 2024) documenting Eos pricing at $250–$255/kWh 1Q21-2Q24, with Pine Gate MSA "similarly priced at ~$250/kWh." We use $225 (vs. historical $250) to stay conservative as LDES market prices compress. BloombergNEF 2025 Li-ion turnkey average: $117/kWh global, $150/kWh US — so $225/kWh is a modest LDES premium, not aggressive. - Frontier ~$450M booking estimate — 2 GWh × $225/kWh (conservative; see contracts methodology). 8-K describes a "firm capacity reservation," not a fixed-price PO
- Scenario analysis (Bear/Base/Bull/Blue-Sky) — illustrative ranges, not forecasts
- FY27 GM-positive & FY28 op-breakeven labels — our model, not company guidance
- Z3 product specs — public Eos literature; verify against current data sheet
Bottom line: every headline number in the KPI strip, Financials, Frontier section, and Capital Structure ties to a 10-Q or 8-K we link to in the footer. Every projection is our work and should be treated as commentary, not forecast. Not investment advice.