In the latest “2050 Energy Development Roadmap†released in the third quarter of 2010, the EU clearly stated that under optimistic conditions, renewable energy will account for more than 80% of total energy in 2050, and solar energy will become the largest part of renewable energy. It accounts for about 19% of the total energy composition. Even with conservative estimates, PV still has to account for 12%.
With conservative estimates, the above plan will be achieved in 2050, but optimistic expects to achieve the above plan in 2020. Recently, the EU's plan is moving in an optimistic direction. In order to achieve the above objectives, it is estimated that the cumulative installed capacity of photovoltaics in Europe will reach 400GW in 2020, of which the cumulative installed capacity in the United States will probably reach 350GW, and the cumulative installed capacity of photovoltaics in the world will probably reach about 1000GW. The annual compound growth rate is expected to exceed 56%. Even if it is expected to be realized in 2050, it is estimated that the cumulative installed capacity in the world will reach 200GW in 2020, and the annual compound growth rate will be around 35%.
The Kyoto Protocol is the main driver of renewable energy development worldwide. In February 2005, the Kyoto Protocol came into effect, and the European Union, Japan, and Western developed countries such as the United States and Australia, which have not signed agreements, have introduced renewable energy development plans. Countries have further increased the procurement of solar power systems, which has brought about a boom in the international solar market.
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