Battery makers are suddenly finding themselves with an explosion of new markets to service—both big and small
You can be forgiven for thinking Tesla Motors is a car company. Yes, it started out making electric cars, but only because personal transportation is the lowest-hanging fruit in tackling the global energy and emissions problem. In fact, Tesla’s core mission is to make big batteries inexpensive and practical for any number of uses.
Last spring, founder Elon Musk unveiled a new product called Powerwall, a battery pack starting at US$3,000 that’s designed to power your whole home for 10 hours or more. If you have a solar panel on your roof, it will allow you to store the electricity produced during the day and use it in the evening to cook, do the laundry and max out your electronic devices.
Even if you don’t have solar panels, you may live in one of the growing number of jurisdictions where electricity costs rise and fall at different times of the day. You could save money on your utility bill by charging your Powerwall during the wee hours and drawing from it later.