Energy storage solution provider Eos Energy Storage has announced that it has raised US$23 million in Round C equality financing — which it will use to help its commercial launch of the company’s grid-scale battery technology.

Invenergy has brought a 31.5MW energy storage facility online to provide frequency regulation for the grid, near to 230MW of renewable energy generation assets.

S&C Electric Europe has used locally-sourced lead acid batteries combined with 80W solar panels to provide electricity for two primary schools in Zambia.

One analyst has predicted that 12,500 residential PV storage systems could be installed in Germany in 2015, more than the total number of systems installed with support from a government scheme in its first two years.

A renewable energy and energy efficiency consultancy, IT Power (ITP), will use funding from the Australian Renewable Energy Agency (ARENA) to trial the effectiveness of six brands of lithium-ion batteries for enhancing grids and increasing the deployment of renewable energies.

Tesla’s grand entrance to the stationary storage market has been (largely) welcomed but question marks remain over the company’s business model. Andy Colthorpe gauges the latest reaction and explores the options facing Elon Musk.

Tesla reported losses of around US$0.36 per share in its quarterly earnings announcement yesterday, despite a flurry of activity around its stationary storage launch last week – yet the company still outperformed the expectations of the investment community.

Ecotricity, a UK-based supplier of renewable and clean energy, will trial a home energy storage box later this year.

Battery manufacturer Leclanché and a maker of ceramic separators and electrodes owned by Electrovaya have signed a deal to scale up their respective efforts in the lithium-ion battery space.

More details have emerged on inverters for Tesla’s new home battery system, to be made by Fronius and SolarEdge, while the EV-maker’s energy storage will be installed at demonstration and commercial projects for US utility Edison International.