WEPA Ventures invests in Epyr
Funding Provisional 76% confidence first seen
Tech.eu reports that WEPA Ventures participated in Epyr’s €15 million Series A, which was led by SlateVC. The round also included existing investors AENU and Daphni doubling down, alongside WEPA Ventures, OVNI Capital and Aurum Impact. The funding is intended to scale Epyr’s industrial heat storage deployments, including a planned 35 MWh unit at Papeco expected to replace the site’s natural gas use—supporting wider decarbonization of high-temperature industrial heat.
The deal
Deal terms as reported in the coverage below.
Decision brief
- What changed
- WEPA Ventures participated in French industrial heat-storage startup Epyr’s €15 million Series A, which was led by SlateVC. Epyr said the funding will support additional deployments after its first installation at WEPA Group’s Troyes paper mill, including a planned 35 MWh unit at Papeco intended to replace that site’s natural gas use.
- Why it matters
- For industrial operators and corporate venture teams, this shows a strategic investor backing a thermal-storage technology that has already been deployed in a live manufacturing setting rather than only at pilot stage. Decision-makers should care because the reported use case targets steam demand and natural-gas substitution in industry, making it relevant to decarbonization, energy-cost exposure, and capital-allocation decisions for heat-intensive operations.
- Evidence
- The information comes from a single Tech.eu report stating that Epyr raised €15 million, that WEPA Ventures participated, and that Epyr’s first installation at WEPA Group’s Troyes mill was inaugurated in May 2026 and supplies up to 25% of the mill’s steam requirements. The same report says the next planned deployment is a 35 MWh unit at Papeco intended to replace natural gas use there; no additional independent coverage was provided here.
- What remains uncertain
- Open questions include the economics of Epyr’s system versus incumbent gas-based heat, deployment timelines for the Papeco project, and whether the Troyes performance will generalize across other industrial sites. It is also not verified in the provided coverage how large WEPA Ventures’ investment was, what commercial terms apply, or whether the Papeco unit will fully achieve the intended gas replacement in practice.
- Monitor next
- Watch for announced operating results or commissioning details from the planned 35 MWh Papeco deployment, especially measured gas displacement, steam output, and project payback.
Analytical support, not advice — assumptions and open questions stated above.