24M, a startup battery company founded as a spin-off from MIT, claims it has made a breakthrough in creating semi-solid lithium-ion battery cells with an energy density exceeding 350Wh per kg.

NextEra Resources will build a 100MW solar farm for Arkansas utility Entergy Arkansas, to include 30MW of battery energy storage, as Entergy seeks to build out solar capacity in the state.

Unlike the solar PV sector where there’s often an attitude of “let’s sell the project first and worry about O&M later,” storage projects must have services built in to the thinking and financial process from the beginning. With storage, a strong O&M plan and team become part and parcel of making and closing a strong productive deal, NEXTracker’s Marty Rogers argues.

Energy storage enjoyed another record-breaking year of deployments in the US in 2018, while the residential segment is now “moving beyond early adopters” and into commercial viability, a report from Wood Mackenzie Power & Renewables claims.

Revisions aimed at enabling energy storage’s participation in wholesale markets, proposed by New England’s Independent System Operator (ISO) have been accepted by the Federal Energy Regulatory Commission (FERC), effective 1 April this year.

Legislators in Minnesota have begun the first steps to establishing fair or optimal market conditions for the deployment of energy storage, setting out rules for determining the value of storage to the network.

Arizona Public Service (APS) has announced a plan to make solar energy dispatchable into the evening using batteries, calling for the deployment of 850MW of energy storage by 2025.

The installation will be used to provide “critical peaking capacity” and “increased” grid reliability. AES will provide a system with a four-hour duration based on Fluence’s Advancion platform. It will be leased under a 20-year contract with AES the owner and operator of the project.

Flow battery maker Avalon has initiated a novel business model aimed at lowering the cost of deployment of its energy storage units, effectively ‘renting’ the electrolytes in the devices to a customer in California.

After China connected a huge battery to a project combining solar, wind and other generation sources, a US utility project has just been announced which will likewise combine solar and wind with a grid-scale battery.