+ Storage

residential storage buyers guide

The 2020 Residential Storage Buyer’s Guide is now available

From heavy-duty deep-cycle batteries all the way to full, future-proofed energy storage systems, there are a ton of options in the market to support a variety of customer and installer needs. To help sort through it all, we asked manufacturers in the residential energy storage space to explain what’s new and unique in their offering.


Sunrun contracts with So Cal Edison on virtual power plant deal

Sunrun contracts with So Cal Edison on virtual power plant deal

November 30, 2020 at 2:39 pm 0 comments

While we entered our Thanksgiving time off slumber, Sunrun contracted with one of the largest electric utilities in the United States, Southern California Edison (SCE), to bundle the power from their Brightbox batteries together in a virtual power plant. The Sunrun-SCE contract will participate in California Independent System Operator’s (CAISO)Read More

Cool concept: Evergrid keeps solar PV systems up when the grid goes down

Cool concept: Evergrid keeps solar PV systems up when the grid goes down

November 30, 2020 at 2:14 pm 0 comments

Most solar installations require the grid to maintain a consistent voltage and to provide surge power when large appliances start up. When the grid is not present, most systems automatically stop producing energy. Maxout Renewables is addressing the challenging issue of solar power backup with a new system called theRead More

Solar is hardware, storage is software — why solar + storage requires a policy paradigm shift

Solar is hardware, storage is software — why solar + storage requires a policy paradigm shift

November 23, 2020 at 10:00 am 0 comments

In the space of a few weeks last summer, climate-driven extreme weather compromised the U.S. electricity grid on both coasts. Hurricane Isaias brought power outages to millions in the Northeast while California, amid record heat and wildfires, experienced its first rolling blackouts in almost two decades. Both events were starkRead More

California CCAs have signed 6 GW of long-term clean energy deals

California CCAs have signed 6 GW of long-term clean energy deals

November 19, 2020 at 11:15 am 0 comments

The California Community Choice Association (CalCCA) announced today that Community Choice Aggregators in the state have signed long-term power purchase agreements for more than 6,000 megawatts with new-build clean energy resources. The total includes almost 5,000 megawatts in executed renewable energy power purchase agreements – an increase of 1,700 megawatts comparedRead More

FERC Order 841 mattered, but state interconnection rules

FERC Order 841 mattered, but state interconnection rules

November 19, 2020 at 10:00 am 0 comments

It was big news this summer when a federal appeals court upheld Order 841 of the Federal Energy Regulatory Commission. FERC Order 841 clarified that energy storage systems as small as 100 kW (which are interconnected on the distribution grid, under state rules), cannot be barred from participating in wholesaleRead More

sonnen launches lower price-point home battery solution in sonnenCore

sonnen launches lower price-point home battery solution in sonnenCore

November 19, 2020 at 9:00 am 0 comments

sonnen launched a new compact, affordable and fully sonnen-designed home battery solution, known as sonnenCore. This product evolution expands sonnen’s premium offerings to include a broader, more cost-conscious base of homebuilders, installers and customers, who do not want to compromise on quality. “With the increasing demand for energy security and theRead More

Arizona approves 100 percent carbon-free goal, distributed storage standard

Arizona approves 100 percent carbon-free goal, distributed storage standard

November 17, 2020 at 8:51 am 0 comments

The Arizona Corporation Commissioners voted last week to require utilities to be 100% carbon-free by 2050 and meet benchmarks along the way. The bipartisan decision also established a new energy efficiency policy to help customers save money on their electricity bills. The historic vote comes after years of study, moreRead More

EnerVenue’s metal-hydrogen batteries vs. lithium-ion in standalone large-scale energy storage

EnerVenue’s metal-hydrogen batteries vs. lithium-ion in standalone large-scale energy storage

November 16, 2020 at 12:28 pm 2 comments

A safer, zero maintenance and lower cost alternative to lithium-ion batteries is a sought-after storage dream, but startup EnerVenue says it’s close to reality right now in the form of a metal-hydrogen battery technology that’s been used in outer space for almost half a century. It is a compelling case.Read More

Solar + Storage Project of the Year 2020: Amesbury Landfill

Solar + Storage Project of the Year 2020: Amesbury Landfill

November 12, 2020 at 8:00 am 0 comments

Amesbury, Mass. | 4.5 MW solar, 3.8 MWh storage Developer: Kearsarge Energy, LP Contractor: CS Energy Modules: Hanwha Group Inverters: Sungrow Storage: NEC Mounting: RBI Solar The 2020 Solar + Storage Project of the Year, as voted on by the readers of Solar Builder, is the Amesbury Landfill Project inRead More

Yotta Energy set to ramp up PV-coupled energy storage concept after seed funding

Yotta Energy set to ramp up PV-coupled energy storage concept after seed funding

November 11, 2020 at 11:00 am 0 comments

Yotta Energy is a company we’ve been following for a while that has a patented thermal management system for batteries that would enable a decentralized solar-plus-storage format for C&I rooftops. After closing a $5 million seed funding round this week, they are going to finalize UL certification and commence commercial productionRead More