Solar Energy is the fastest growing renewable energy source in the world and has shown tremendous growth in the last 2-3 years.This has been driven by a more than 50% decline in Solar PV costs which continues to decline further.With further increase in energy prices,Solar Power is becoming closer and closer to retail electricity price.Not only is the price declining,solar power is clean energy a most valuable feature in these days of accelerating climate change.Solar Energy has already reached grid parity in places like Italy and Hawaii and will do so in more places in the coming 2-3 years.The industry is a dynamic one and the list of top solar companies can change quickly.Rapid Technology Change and Fast Declining Costs have pushed out most of the Top 10 companies of 5 years ago and brought in new ones mainly Chinese.Here is a list of the Top Solar Panel Producers in the World.