Solar Panels are now available from hundreds of different manufacturers using different technologies like crystalline Silicion,CIGs and Cd-Te.The Solar Panels Efficiency also varies a lot depending on the solar panel manufacturer and the technology used.The cost of the solar panel can also vary a lot depending on the retailer,size of the solar panel,technology and the brand.This makes buying solar panels a confusing problem though most residential and commercial buyers are not involved leaving the decision to the solar installer/EPC company.Sunpower is a US company which makes the most efficient solar panels using its monocrystalline solar cell technology which gives efficiency of more than 24%.The company sells black solar panels with efficiency of 18-20% .The company is a solar system integrator and developer as well building some of the largest solar farms in the US.The company was recently bought by the French Oil Giant Total.Sunpower operates in all the main segments of the market and has reputation for selling some of the highest quality solar panels in the country.
Note Big Oil and Gas has been slowly been retrenching form the solar energy industry despite initial leadership.Shell which was one of the biggest solar players has become almost non-existent while BP has shut down a number of solar factories outsourcing production to China.Other Oil and Gas companies like Exxon,Valero,Chevron and others have concentrated their energies on related green sectors like algae based biofuels rather than on solar and wind energy.So the move by Total comes as a surprise as it acquires one of the top 15 solar panel companies in the world.Sunpower is being acquired at a cheap price considering its world beating solar cell technology and its massive systems business which has gigawatts of solar projects under development.Note Sunpower makes the highest efficiency solar panels on a commercial scale and recently tied up with AUO.It is the 2nd biggest solar plant installer in the US and has a massive presence in the commercial and government sector.Total said it looked at over 200 companies before buying Sunpower.Note M&A has been strong in the Solar Thermal Industry and has now started picking up in the Solar PV Industry as well.With solar company valuations at a historic low,it makes sense for the larger chemical and energy companies to pick up good companies on the cheap.
Solar Power Plants till a couple of years were quite small compared to the mainstream energy power plants.Most power plants were in the double digit range with no Solar Farms having the capacity of 100 MW or greater.This is in reference to PV Solar Power Plants and not to Solar Thermal Plants which are bigger in size.Note Solar Thermal Plants by the very nature of technology require larger sizes to be economical just like Thermal or Nuclear Power Plants.On the other hand PV Power Plants do not gain much in economies of scale and government prefer giving subsidies to distributed rooftop solar installations rather than large solar farms.
The Companies that make the Solar Panels with the highest efficiences are Sunpower and Panasonic/Sanyo.Sunpower has the highest efficient solar modules in the market using a properietary process and has solar cells with efficiency reaching a top limit of 24%.Sanyo also has very efficient solar panels under the HIT brand name.These solar panels also approach the 18% range (solar modules not cells).Normal crystalline plain vanilla solar panels come in the range of 13-14%.Note solar modules have lower efficiency than solar cells as some area is left for the frame etc.There are other companies that are fast catching up to Sunpower and Sanyo in the high efficiency solar panels as well.Note higher efficiency solar panels sell at higher prices per watt as the require lesser area.AUO which has a JV with Sunpower has recently claimed to have produced the higher efficiency solar panel .
The US is the world’s largest electricity producer and consumer with a total electricity capacity of around 1 Terawatt.The share of Solar Energy in the US Electricity Production is negligible compared to around 19% for Nuclear Energy and around 2-3% for Wind Energy.However Solar Energy in the US is set to grow at high double digits over the next 2 decades as the Costs of Solar Energy Decline with prices of other Energy Forms set to rise.In some states like Hawaii and California,solar energy prices are already at grid parity with retail electricity prices.Some states like New Jersey,Colorado,Arizona have seen sharp increases in solar energy adoption over the last 2-3 years boosted by state specific government policies and subsidies.With the US Federal 30% Cash Grant on System Costs and falling systems prices for solar systems,the growth in inevitable.The US Solar Market has seen the rise of a number of innovative and fast growing system integration and installers.Some companies have come up with innovative financial solutions to solve the high initial investment hurdles in solar systems through leasing and financing plans.Here are a list of Top US Installers/System Integrators.Note the list will keep expanding in the coming years as the size of the US Solar Energy Market Grows.
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.