EnergyPathways (AIM:EPP) has filed patent applications covering thermal storage technology developed to enhance its modular Compressed Air Energy Storage (CAES) system.
The AIM-listed company is developing the system for its MESH Long Duration Energy Storage (LDES) project, a scheme designated by the government as being of national significance and set to become the UK's largest LDES project at 300MW, 55GWh and over 100 hours of duration.
The patented technology stores heat generated during the CAES compression phase in sub-surface salt caverns, releasing it later to lift round-trip efficiency to as much as 72%.
EnergyPathways said the approach cuts natural gas use and associated carbon costs, reduces reliance on expensive high-pressure thermal storage equipment, and has a compact surface footprint suited to offshore sites and space-constrained locations.
The company also flagged a potential path to recurring revenue through licensing agreements with clients worldwide.
"These patent filings further build on EnergyPathways strategy to integrate innovation and develop storage solutions that can lower energy costs and strengthen energy security", said Ben Clube, chief executive of EnergyPathways.
Clube pointed to the UK's target of installing at least 20GW of LDES and ultra-LDES capacity, adding that the company has already identified further UK locations suited to its MESH technology.
News Intelligence what this means for the company
EnergyPathways has filed patents for thermal storage technology designed to boost round-trip efficiency of its flagship MESH CAES project to as much as 72%, while reducing natural gas use, cutting reliance on expensive thermal equipment, and creating a potential licensing revenue stream. The filing reinforces the company's technical differentiation for a government-designated nationally significant project and signals progress toward commercializing the core innovation underpinning its 300MW, 55GWh storage hub.
Patent protection for the thermal storage approach strengthens EnergyPathways' competitive moat on MESH and opens a new revenue avenue through licensing, though the patents' commercial value depends on regulatory approval and market adoption of the CAES model itself. The filing does not alter the core risk that MESH remains in development and subject to permitting and financing execution.
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