GWH — what changed in the latest 10-Q
A section-by-section comparison of GWH's newest periodic SEC filing (10-K/10-Q) against the prior same-form filing: paragraphs added and removed per section, with verbatim excerpts. Purely a deterministic text diff — no similarity scores, no directional read, not investment advice.
Comparing 10-Q · 2026-08-11 vs the prior 10-Q · 2026-05-07
| Section | Outcome | Added | Removed | Minor | Unchanged |
|---|---|---|---|---|---|
| MD&A | Text added/removed | +27 | −25 | ~18 | 19 |
| Market risk (Item 3) | No paragraph-level changes | 0 | 0 | 0 | 1 |
| Controls & procedures | Text added/removed | 0 | 0 | ~2 | 1 |
| Legal proceedings | Text added/removed | +1 | 0 | ~1 | 0 |
| Risk factors | Some risk factors updated | +84 | −58 | ~63 | 256 |
| Other information | Text added/removed | 0 | 0 | ~1 | 1 |
Counts are paragraphs; added/removed means text added or removed vs the prior filing — no direction or judgement implied.
Representative excerpts
Up to 5 excerpts of about 300 characters per section, quoted verbatim from the two SEC filings.
MD&A
Text added vs the prior filing · source: 10-Q · 2026-08-11
ESS develops, manufactures, and integrates non-lithium energy storage solutions. Through sodium-ion and iron flow battery technologies, ESS uses predominantly earth-abundant materials to deliver safe, reliable, and cost-effective energy storage. ESS serves utilities, independent power producers, and…
ESS originated in 2011 as an iron flow battery manufacturer, building upon the premise that the energy transition from a fossil fuels-based system to one dominated by renewable energy would require batteries derived from earth-abundant materials and capable of long service life. As a pioneer of iron…
Today, ESS combines its expertise in long-duration iron flow batteries with next-generation sodium-ion technology and advanced energy management software. This diversified approach allows us to address a broader range of customer needs—from minutes to multiple days of energy storage—while reducing d…
We believe we have the opportunity to establish attractive margin unit economics if we are able to continue to reduce production costs and scale our operations. Our future financial performance will depend on our ability to deliver on these economies of scale with lower product costs. We anticipate …
On August 16, 2022, the Inflation Reduction Act (the “IRA”) was enacted, extending the availability of investment tax credits (“ITCs”) and production tax credits (“PTCs”) applicable to solar and energy storage products. The ITC for solar generation projects was extended at that time until at least 2…
Text removed vs the prior filing · source: 10-Q · 2026-05-07
ESS is a long-duration energy storage company specializing in iron flow battery technology. We design and produce long-duration batteries predominantly using earth-abundant materials that we believe can be cycled over 20,000 times without capacity fade based on lab-scale results. Because our batteri…
Our long-duration iron flow batteries are the product of nearly 50 years of scientific advancement. Our founders began advancing this technology in 2011 and formed Legacy ESS. Our team has significantly enhanced the technology, improved round-trip efficiency and developed an innovative and patented …
Our batteries provide more clean energy every day to utilities, independent power producers, and commercial industrial customers, offering a path to carbon free energy supply. ESS batteries offer flexible, frequent cycling capabilities which can offer higher value clean energy when it is needed, and…
We believe we have the opportunity to establish attractive margin unit economics if we are able to continue to reduce production costs and scale our operations. Our future financial performance will depend on our ability to deliver on these economies of scale with lower product costs. We believe our…
On August 16, 2022, the President of the United States signed into law the IRA, which extended the availability of investment tax credits (“ITCs”) and production tax credits (“PTCs”) and made significant changes to the tax credit regime that applies to solar and energy storage products. As a result …
Legal proceedings
Text added vs the prior filing · source: 10-Q · 2026-08-11
The Company received a demand letter from a supplier alleging damages based on certain purchase terms and commitments the vendor made based on forecast data they allege the Company provided. As of June 30, 2026, a contingent loss of $1.75 million was recorded related to the matter within accrued and…
Risk factors
Text added vs the prior filing · source: 10-Q · 2026-08-11
Demand for our sodium-ion BESS, if developed, may not materialize as anticipated.
The market opportunity for sodium-ion BESS, if developed, may not materialize as anticipated. We have identified potential sodium-ion BESS opportunities. However, these opportunities are based on preliminary discussions, indications of interest, market assessments, customer forecasts and other assum…
In addition, market acceptance of our sodium-ion BESS may be limited by the actual or perceived performance of our products. Sodium-ion battery technology remains in the early stages of commercial adoption and customers may require extensive testing, validation and qualification periods before deplo…
The market opportunity for sodium-ion BESS is also dependent on demand from utilities and data center operators and such demand will be affected by the demand for data centers which could be affected by corporate IT spending, general economic slowdowns as well as adverse developments in the data cen…
If the demand for our sodium-ion BESS does not materialize as anticipated, customer adoption of our products could be materially lower than expected and our growth prospects, revenues and operating results could be adversely affected.
Text removed vs the prior filing · source: 10-Q · 2026-05-07
We are in the early stage of commercialization. In addition, certain aspects of our technology have not been fully field tested. If we are unable to develop our business and effectively commercialize our energy storage products as anticipated, we may not be able to generate significant revenues or a…
The growth and development of our operations will depend on the successful commercialization and market acceptance of our energy storage products and our ability to manufacture products at scale while timely meeting customers’ demands. There is no certainty that, once shipped, our products will oper…
available capacity. Our inability to predict the extent of customer adoption of our proprietary technologies in the already-established traditional energy storage market makes it difficult to evaluate our future prospects.
As of March 31, 2026, we had limited Energy Warehouse and Energy Center products fully deployed. Production and productized versions of our Energy Base product and core component technology are still under development. We have experienced various quality and performance issues with units that have b…
In addition, the tariffs put in place by the United States, Russia-Ukraine conflict, geopolitical tensions involving China, the conflict between the U.S., Israel and Iran, tensions in the Middle East, and U.S. interventions in Venezuela have led to
How to read Risk Factors (Item 1A) in a 10-Q
A 10-Q risk-factor section usually takes one of three forms; this page classifies it as one of:
- Pointer — the filer states there have been no material changes and points back to the annual 10-K risk factors; there is no own risk text to compare this quarter.
- Partial update — the filer carves out specific updated risks ("except as set forth below"); the excerpts show exactly what is new this quarter.
- Restated in full — the quarter carries the complete risk-factor text. When the prior quarter was only a pointer there is no prior full text to diff against, so the page flags the section as restated instead.
This describes the filing structure only — it is never a judgement on whether risk went up or down.
Source: text-level diff of the two SEC EDGAR filings · deterministic (no AI-generated content) · for reference only · not investment advice