Wattstor to fund solar and battery project for Welsh exporter LSN Diffusion

Wattstor will finance and install solar and battery storage at LSN Diffusion’s South Wales site under a long-term power deal announced June 19, 2026. The project is designed to cut energy costs, ease grid constraints and help the metal powder maker meet customer sustainability demands as it expands in Europe. Why it matters: - LSN Diffusion gets long-term electricity price certainty at a time when UK manufacturers face volatile energy costs and uncertain industrial support. - The on-site system is expected to cover about 25% of the company’s electricity demand and reduce reliance on the grid. - The project could help the Welsh exporter meet sustainability requirements from European customers and support future production growth. What happened: - Wattstor announced a partnership with LSN Diffusion to deliver a solar and battery storage project at the manufacturer’s South Wales facility. - The deal includes Wattstor’s renewable electricity tariff, Price Protect, as part of a long-term electricity supply agreement. - Wattstor will finance and install 1.3 MW of rooftop solar and a 5 MWh battery energy storage system at LSN Diffusion’s base in Cilyrychen, Llandybie. - The company describes LSN Diffusion as a specialist metal powder manufacturer and one of Wales’ biggest exporters. The details: - The system is expected to generate around 25% of site electricity demand once operational. - The project has scope for future expansion. - LSN Diffusion expects the system to cut exposure to volatile energy prices and avoid unnecessary costs tied to grid dependence. - Expansion plans such as a new furnace could have required an estimated £1 million grid upgrade, plus higher standing charges. - The on-site generation and storage system is intended to reduce that constraint and support growth. - Wattstor was advised by Freeths on the legal aspects of the transaction, with Corporate Partner Clare King leading the team. - The partnership is already helping LSN Diffusion pursue European commercial opportunities by supporting customer sustainability requirements. Between the lines: - The deal reflects a broader industrial shift toward private energy infrastructure as manufacturers look for both cost control and resilience. - For export-led businesses, energy projects are becoming part of sales strategy, not just operations, because sustainability requirements now affect access to customers. - Wattstor’s model pairs physical generation with a tariff structure, which gives the customer both on-site power and longer-term budgeting certainty. What’s next: - Wattstor will move ahead with financing and installation of the solar and battery system. - LSN Diffusion expects the project to support production expansion without waiting on major grid upgrades. - The site could add more capacity later if the company expands further. The bottom line: - The partnership gives LSN Diffusion a way to manage energy risk, lower dependence on the grid and back its export growth with cleaner on-site power.