Of course. Despite the title the article is only about off-grid storage, basically batteries. Though even off-grid storage can be on-grid if it's sometimes conn

Of course. Despite the title the article is only about off-grid storage, basically batteries. Though even off-grid storage can be on-grid if it's sometimes connected, as some plans for the future of plug-in hybrids call foresee. Sadly you cannot very well use a miniature hydroelectric dam for off-grid energy storage on-board an electric car or electronic mobile device.