| 1 | In India, where power is unreliable, Panasonic is developing air-conditioners that operate with little energy. | |
| 2 | You save money on lower energy costs every month for the life of the product. | |
| 3 | It's an extension to our metabolism, if you like, and this means you can build a building and use far less energy. | |
| 4 | But how can we sustainably power all those energy-sucking lights? | |
| 5 | Imagine a boat that coasts along almost silently and works completely on free energy. |