An uninterruptible power supply (UPS) or uninterruptible power source is an electrical apparatus that provides emergency power to a when the input power source or fails. A UPS differs from an auxiliary or or in that it will provide near-instantaneous protection from input power interruptions, by supplying energy stored in batteri.
[PDF Version]
We need safe and efficient ways to store renewably generated energy to use when the wind stops blowing, when clouds form in the sky, and when demand for electricity jumps higher than normal. . Wind and solar energy are now cheaper than power generated from fossil fuels, but they require specific weather conditions. Batteries are at the core of the recent growth in energy storage and battery prices are dropping. .
[PDF Version]
