A California startup is turning the backyard deck into a home energy system. Outer Spaces will give its OS1 pavilion its first in-person showing at RE+ 2026, running November 16–19 at the Las Vegas Convention Center. The company bills it as the ‘world’s first’ combined solar pavilion and battery deck.
The OS1 puts solar panels in the pavilion roof and batteries beneath the deck, giving homeowners a way to generate and store electricity without altering the roof of their house. A full-size unit at booth W17153 will give visitors a look at both components and the electrical wall that connects them.
Outer Spaces will offer the OS1 in two sizes. The 12-by-12-foot model has about 2.5 kW of solar capacity, while the 12-by-24-foot version has about 5 kW. Beneath the floor, slim lithium iron phosphate battery modules lie flat in dedicated compartments, leaving the deck clear for furniture and appliances.
Each module stores 7.83 kWh. Homeowners can configure the system with one to eight modules, for up to 62.64 kWh of storage. The pavilion’s electrical wall houses the hybrid inverter, the OS1 DC Hub, and the distribution equipment.
“We designed OS1 around the battery from day one, so the cooling, waterproofing, and wiring live inside the frame. It’s modular and easy to assemble on-site,” said Jiake Liu, co-founder and CEO of Outer Spaces.
4 kVA. Outer Spaces said the system can start equipment with large motors, including air conditioners and heat pumps.
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