
The problem is that people's memories are short, and the old arguments – coal is "native energy," offshore oil offsets foreign imports – reassert themselves to reinforce the status quo.
Thankfully, new technology, with the help of investments in renewable energy forecasted to reach $200 billion in 2010, is going to change that and in future, energy will come from mother natures renewable recources: Wind, sun, waves and organic waste.
Wind power:
Wind power has been used by man for ages. With technologies developed by market leaders Vestas and Siemens, wind power is already contributing a large part of the energy consumption in parts of the world. Mainly in Europe where the large windmill parks are scattered off shore.
Solar power:
Many of the biggest projects are either in Europe or involve European companies. Abengoa Solar announced this week that it had started commercial operation near Seville, Spain of its 50-megawatt Solnova 1, which uses parabolic trough solar technology. The plant can power 25,700 homes, or offset 31,400 tons of carbon dioxide.
Wave energy:
Wave energy is still a technology awaiting widespread commercialisation, though costs are coming down rapidly. The biggest problem is cost. These facilities are very capital intensive, ranging from $4,000 to $15,000 per kilowatt. Significant breakthroughs in capital cost would be needed to make this technology cost competitive. Ocean-based systems take a beating, especially since it's roughly true that the rougher the water the more energy they can produce.
Trash-to-energy:
Investments in Biodigesters, that converts organic waste to biofuel, are increasing and many projects are emerging around the world. In Singapore, IUT Global has set up a large scale biodigester that will be able to supply the Singaporean and Asian market with biofuel.
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