Deploying battery storage at grid level is relatively uncharted territory, but a number of pioneers’ projects are now in the ground. Patrick Leslie and colleagues at RES, which built some of the first wave of storage projects, teases out the key technology, finance and regulatory lessons the industry can learn from these early experiences.

Unsubsidised, commercial solar-plus-storage projects of the type being executed in Puerto Rico could demonstrate how to overcome many of the challenges imminent for the world’s PV markets, according to one company with experience in the field.

The output of a 16MW solar farm in Puerto Rico will be tied to an Aquion ‘saltwater’ battery, in one of the few current trials of moving solar power produced in the daytime to be used at night.

A renewable energy auction which could take Australia’s capital Canberra over the line in meeting a long-term “90% renewables” target will also lead to the deployment of 5,000 residential and commercial battery storage systems.

In our latest video feature, we discussed the policy and regulatory space for energy storage in the UK with two leading members of the Solar Media Energy Storage Alliance.

Many have predicted 2016 will be the year when energy storage starts to live up to its hype. Andy Colthorpe canvased views from some of the leading figures and companies in the sector on the next developments a market that could help take solar and other renewables to the next level.

What is thought to be Canada’s first virtual power plant (VPP), aggregating the capabilities of a small fleet of solar PV-plus-storage systems with energy management software, has been deployed in Ontario.

The UK remains on track for a big push on energy storage with the latest budget backing changes proposed in a key report and an imminent consultation looking to shake-up the role of network operators.

For over a decade, net metering has been a crucial component of the economic puzzle for renewable energy, allowing both residential and commercial rooftop PV owners to realise favourable returns on their solar equipment investment. John Merritt of Ideal Power Conversion looks at some of the arguments and counter-arguments and says solar-plus-storage could be the natural successor to the policy – starting at commercial and industrial (C&I) level.

Puerto Rico’s financially troubled electric power authority PREPA will install a large-scale battery park at a 10MW PV farm, to help integrate the farm’s output and other renewables.