PASSIVE SOLAR DESIGN is the first step towards reducing our power consumption in buildings. After that, SOLAR and WIND energy can be used for cleaner, renewable electric power. However, a quick look at the solar power industry shows that cumulative solar energy production accounts for less than 0.01% of total Global Primary Energy demand. Its use is growing, but not so much in the US. Consider:
- Worldwide photovoltaic installations doubled to 5,948 MW in 2008, up from 2,826 MW installed during the previous year. (In 1985, annual solar installation demand was only 21 MW.)
- In megawatt terms, cell production in China and Taiwan reached 3,304 MW in 2008, with Europe at 1,729 MW, ahead of Japanese production at 1,172 MW in 2008. US manufacturers contributed only 375 MW in 2008.
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