Lithium-ion OEM Envision Energy has launched its latest grid-scale BESS solution, a 10-foot modular DC block which can be combined into configurations of 12MWh or more.
The Gen 8 Scalable Platform uses the company’s 750Ah-plus lithium-ion battery cell and, Envision says, provides adaptability across project sites without compromising efficiency in transport, installation, or operation.
Its design supports 6MWh, 8MWh, 10MWh, 12MWh (or more) configurations per unit, with six stacked together in a render of the unit provided with the announcement (above). Each 10-foot battery energy storage system (BESS) unit weighs 29 tons.
The solution provides 8MWh of capacity in a 20-foot footprint, split into the two 10-foot containers, plus a third 2MWh container for HVAC auxiliaries and fire suppression system, explained Juan Alvarez, senior solution manager at Envision on business networking site LinkedIn. The above render would therefore be two of these configurations side-by-side, totalling 20MWh.
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The product is also ‘ultra-quiet’, Envision said, at 55-58dB.
The new solution from Envision is the latest in a line of smaller, modular products launched by BESS and battery OEMs this year, as the industry diversifies its offerings beyond the 20-foot unit as standard, a trend noted by Energy-Storage.news this year whilst at the Intersolar trade show in Germany in May.
By that point, CATL, Fluence and Hyperstrong had all similarly launched modular BESS units that got around weight restrictions for transportation, while at September’s RE+ show in Las Vegas, Canadian Solar launched one too.
Marek Kubik, formerly of Fluence but now energy storage director at Saudi Arabia megaproject NEOM, who correctly predicted the shift back to modular last year, noted that providers appear to be converging around a specific length.
“The re-modularisation trend that I predicted for stationary energy storage exactly a year ago continues, and the sweet spot appears to shift toward 24–30 ft lengths, this latest product aligning with e.g.
Fluence SmartStack (24ft), BYD Haohan (26ft), Tesla MP3 (29ft), Sungrow PT3 “plus” (30ft), IPS’s Exeron X-BESS 8 (22ft). Design takeaway: developers, start planning layouts assuming 30 ft containers for future flexibility,” he said on LinkedIn.
Envision is a relatively recent entrant to the BESS space but has grown to become the seventh largest BESS supplier globally in H1 2025, according to market intelligence firm Rho Motion. It recently ran a webinar with Energy-Storage.news on the UK’s LT2029 procurement and the future of grid stability services.
