Grid-scale energy storage systems may make it easier to rely completely on renewable energy.
Saving power to use later lets consumers, businesses and utilities generate energy when it's cheap and deliver it when they need it most. There's not much of it today, but the industry is growing fast.
Solar and wind compete with coal power plants when it comes to energy storage systems.
AP Photo/Mel Evans
Energy storage, such as big batteries, on the power grid is generally seen as 'green' technology but the reality is more complicated, an analysis finds.
A solar and battery-powered microgrid got San Juan’s Children’s Hospital quickly back online after Hurricane Maria.
Yes, Puerto Rico and any other storm-vulnerable location could benefit from on-site solar and battery backup, but it's unrealistic to say these microgrids are enough to power the island.
Cultana, South Australia: scene of the nation’s next big hydro scheme?
A planned expansion to the Snowy Hydro scheme is grabbing headlines. But a new plan could build oceanfront hydro power in places without mountains - including South Australia.
With the right mix, the grid can go fully renewable for the same cost and reliability as fossil fuels.
The Turnbull government is funding energy storage as a crucial missing piece of the electricity grid puzzle. Analysis suggests an affordable, fully renewable grid doesn't require any heroic assumptions.
The Diablo Canyon nuclear power plant in California is closing and the state has committed to replacing it with greenhouse-free sources of electricity.
Can nuclear power plants like California Diablo Canyon be replaced without greatly raising emissions? It's an open question.
The closure of Port Augusta’s Northern Power Plant marks the end of coal-fired generation in South Australia.
Closure of the state's last coal power station will leave a potential gap in the electricity supply.
We already have them in many sizes – but we're still looking for a battery to store truly large amounts of energy.
Fancy a home battery with your battery-powered car?
As it's done with its electric cars, Tesla will need to rely on well-heeled early technology adopters and friendly regulations to sell lots of home batteries.