Solar energy was once the answer to the energy crisis in 1970s. There was an oil embargo by OPEC at that time and interest in solar energy went to an all time high in US. Japan however took a different approach. Japan went on energy conservation. Right now Japan is the lowest per capita consumer of energy in the First World or developed economy. Interest in solar and other alternative energy sources wanes went oil price drop to below US$20 per barrel.
Recently, there is a revival in solar energy again. President Obama has allocated more than $20 billions on developing alternate energy sources such as solar and wind. In Japan, there is a Photovotaic exhibition where many manufacturers of PV system exhibits their wares. There are transparent glass which can be use for office building, flexible solar strip and bubble type. A side exhibition on storage and fuel cells completes the system requirements. Many governments are channelling funds in solar energy projects as the oil price is expected to increase again in the long term. New sources of oil now cost more than $50/barrel to extract.
Interest in solar energy is enjoying a revival and may be the future for a greener Earth.
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