Coronavirus has exposed a lack of investment in the big batteries crucial to unlocking solar and wind power. A drop in energy demand caused by the pandemic has left European grids overloaded with green electricity, raising the threat of blackouts and underlining the need for energy storage in a low-carbon energy system. Europe is striving to rid its power grids of carbon emissions by the middle of the century. But what should be an incentive to increase the use of batteries isn’t happening nearly fast enough with installations dropping last year, according to BloombergNEF.
“Batteries are extremely critical,” Fatih Birol, executive director of the International Energy Agency, said in an interview. “They are ready for the big time” and should be included in post-virus economic recovery packages, he said.
“An obstacle for much wider investment in the space is the lack of contracted and visible revenue,” he said. Even as the costs of building batteries come down, “the remuneration of that capacity needs to become more visible in order to attract the large-scale investment needed.”
For decades, power markets have been designed around demand and ensuring there is enough supply to fulfill peak consumption. Slowly the focus is changing to how to control an oversupply when it’s sunny or windy. And with renewables having priority feeding into the grid, they have more influence over how the system is managed.