Biomass, to get 16 light bulbs per person, you'd need a land area something like three and a half Wales' worth, either in our country, or in someone else's country, possibly Ireland, possibly somewhere else.  And a fourth supply side option, concentrating solar power in other people's deserts, if you wanted to get 16 light bulbs' worth, then we're talking about these eight hexagons down at the bottom right.
要用生物能源来解决每个人16个灯泡的用电量，我们需要 一个比威尔士大3.5倍的地方来积体这些作物。 我们可以在英国本土或外国去找一个这样的地方， 可能是爱尔兰比较合适，或别的什么国家吧。 第四种选择：太阳能 但要将它建在别国的沙漠里， 如果你想得到人均16个灯泡的电能， 我们谈的就是这张地图中的这8个六边形 就是在右下角的这些。