目前，太阳能电池板非常昂贵 — — 其能源输出成本相当于化石燃料的10倍之多 — — 只有那些富有而热心（而且往往手握大把补贴）的西方人才能用得起。
Right now, solar panels are so expensive – about 10 times more than fossil fuels in terms of cost per unit of energy output – that only well-heeled, well-meaning (and, usually, well-subsidized) Westerners can afford to install them.