Encyclopedia
Articles
Long-form educational entries. Featured pieces sit on the homepage; this index is the full set.
electrochemical
Batteries on the Grid
Lithium-ion batteries provide fast, short-duration storage. They are not a universal substitute for generation.
6 min read
mechanical
Why Energy Storage Matters
Electricity is consumed as it is made unless something stores it. Storage technologies differ by duration and efficiency.
8 min read
mechanical
Pumped-Storage Hydropower
Two reservoirs and a reversible plant make the largest form of grid electricity storage in many countries.
7 min read