Electricity Storage Technologies

Supercapacitors - used for UPS and for "regenerative braking" in cars and trains
limited storage potential, hard to scale

Vuvuzelas

The vuvuzela is an almost metre long horn that produces a loud, monotone sound. It became popular at South African football matches in the 1990s. Vuvuzelas are on the list of banned items at Wimbledon.

Electricity Markets

How does the electricity wholesale spot market in the UK work? (wholesale=> selling to retailers).

Before each period the market is open, generating companies submit the minimum prices at which they are willing to supply power.

The National Grid then draws up a supply plan based on these "offer" prices.