Green
April 22, 2011
Offshore Wind Energy has been foretasted from around 3 GW to 75 GW by 2020 as countries in Europe,Asia and North America heavily support this industry.Onshore wind energy growth on the other hand is expected to slow down as 38 GW of Wind Capacity were installed in 2010 with Western Markets showing a sharp slowdown.Offshore Wind is seeing increasing growth as government heavily subsidize and support Offshore Wind Energy.Though the costs of offshore wind parks are much higher today,they will decrease as the installed offshore wind capacity increases from around 3 GW today to around 75 GW which is being foretasted globally by 2020.Note every industry sees costs declining with large capacity except the mature industries.For example Wind Energy has seen a 10% decline in costs for every 100% increase in installed capacity.Note offshore wind projects offer even more Wind Energy Advantages than normal Land Based Wind Farms.The only problem facing offshore wind power is high costs as the industry still is on the learning curve.However as companies gain experience and build capacity,the prices will be cut as costs come down and volumes increase.European Wind Companies are leading the pack as almost 80% of the current global capacity has been installed in Northern Europe.The opportunity is so large that South Korea shipbuilders like Samsung,Daewoo and Hyundai are investing heavily in this area.
April 18, 2011
Offshore Wind Energy grew by more than 50% in 2010 and is expected to continue at above 50% growth rates over the next several years as the global installed offshore wind capacity multiples by more than 25 times over the next 10 years.The massive investments and government interest in offshore wind farms has attracted a number of companies to this sector.Top Wind Turbine Companies are leading the pack as it falls right in their domain of expertise as Wind Turbines form almost 50% of the cost of a offshore wind park.Other companies with expertise in related areas such as building foundations for the giant 5 MW and greater capacity offshore wind turbines and the logistics in transporting them also get involved.Shipbuilders from South Korea and Northrop Gruman are also getting in through JV and M&A.European Wind Companies are leading the pack as almost 80% of the current global capacity has been installed in Northern Europe.Also these companies possess a high level of expertise at building and designing wind turbines.Here is a list of the major offshore wind turbine companies.
April 18, 2011
Offshore Wind Energy has been forecasted from around 3 GW to 75 GW by 2020 as countries in Europe,Asia and North America heavily support this industry.Note onshore wind energy growth has slowed down as 38 GW of Wind Capacity were installed in 2010.Offshore Wind Energy is being subsidized as it has a number of advantages over onshore wind power despite its higher costs.The oppurtunity is so large that South Korea shipbuilders like Samsung,Daewoo and Hyundai are investing heavily in this area.Note Onshore Wind Energy also has many advantages which have overcome the drawbacks to become the biggest green industry.Offshore Wind Power is set to take up the growth baton fro Onshore Wind as Costs are expected to come down as the industry and technology matures and more Wind Turbine Companies gain experience in this area.Note USA has 4000 GW of Offshore Wind Capacity which is enough to meet the entire electricity need of the biggest power consumption country in the world.
April 18, 2011
Offshore Wind Parks which are clusters of giant offshore Wind Turbines built near the coast in the middle of the water have become the fastest growing segment of the Wind Power Industry.The list of of offshore wind farms are increasing as government heavily subsidize and support Offshore Wind Energy.Just like Electric Vehicles,offshore wind farms though not economic today will help immensely in the fight against Climate Change in the future.Though the costs of offshore wind parks are much higher today,they will decrease as the installed offshore wind capacity increases from around 3 GW today to around 100 GW which is being targeted globally.Note every industry sees costs declining with large capacity except the mature industries.For example a rule of thumb for solar power costs are that they decline by around 20% for every 100% increase in installed capacity.Offshore Wind Power today suffers from higher costs as the industry and the ancillary infrastructure is not well devloped.However as companies gain experience and build capacity,the prices will be cut as costs come down and volumes increase.So what is the cost of offshore wind power and what are the cost drivers of this industry.
April 18, 2011
Offshore Wind Farms are the fastest growing segments in the Wind Energy Industry area boosted by improvements in Wind Technology and subsidies by the government.Offshore Wind Energy is growing the fasted in the United Kingdom which is surprising considering the poor state of Green Energy there.Europeans are leading the way in offshore wind energy given their massive strengths in Wind Technology.However other major Wind Turbine Companies are also developing their capabilities by spending millions of dollars on offshore wind turbine R&D.Offshore Wind Farms have also come in for criticism because of their higher costs and the longer time to install them.Note offshore wind projects offer even more Wind Energy Advantages than normal Land Based Wind Farms.The only problem facing offshore wind power is high costs as the industry still is on the learning curve with only 1.5% of the world's total installed wind capacity coming from offshore wind farms.
April 17, 2011
Silicon for Solar Cells that are used to make the normal crystalline solar panels is known as Polysilicon.This is a highly purified form of the Silicon Metal that is mined.Note Polysilicon is made through chemical processes which help in purifying the raw silicon and removing the impurities.The Silicon that is used to make Silicon Cells is also used to make semiconductor wafers which is the raw material for the Electronic Industry.Solar Cells require slightly lower purity of 6N compared to the higher 9N required by the Semiconductor Industry.Once Polysilicon is produced it has to be made into flat wafers which require further industrial processes like pouring the metal in crucible to make ingots and then cutting the ingots by wiresaws to make solar wafers.The solar wafers are then converted into solar cells by processes like diffusion,etching etc.
April 17, 2011
A lot of confusion exists about solar cells efficiency about which technology results in how much efficiency and the difference between solar cells and the solar panels efficiency.Note the biggest differentiator of a solar cell besides its cost is its efficiency.Not only do different materials give different efficiencies,even different companies have conversion efficiencies which differ for the same technology.Silicon Solar Cell Efficiency also depends on the purity of the solar wafer which is used as raw material to print solar cells besides whether it is monocrystalline or multicrystalline solar cells.With most of the low lying fruit already gathered in respect to lowering cost of the silicon solar cells,most of the big Chinese solar companies are concentrating their efforts in improving the efficiency in order to cut down costs in the cutthroat solar industry where the stars of yesterday are fighting to stay alive (Energy Conversion Devices,Evergreen Solar).This rising tide of the solar industry in 2010 has not been able to revive the fortune of some companies though European companies have made enough to fight another day.Solar Cells Efficiencies also differ in the champion cells tested in labs like NREL and on commercial lines.But here is a general range of efficiency of different types of solar cells made from different technologies
Solar Cell Efficiency Improvement is the best way to reduce the costs of solar power and reach grid parity in most places in the world.Solar Cell Efficiencies have improved continuously and with a number of companies and startups investing billions of dollars in research,it will keep improving.However cost considerations are an important factor as well and the technology which balances the two will win the solar energy race
April 17, 2011
America currently has a massive number number of startups in the clean energy industry and a lot of them in the fastest growing green industry that is the solar sector.However like startups in all industries a lot of them will fail,some will sell themselves to others like Heliovolt,Ausra while a few will make it really big making a fortune through IPOs for their PE investors and owners.One or two will make fortunes for those who invest early as well like First Solar.Note First Solar despite numerous ups and downs is still up more than 450% from its IPO price five years ago.It won't be the last either.So despite the strong competition in the solar industry where numerous companies and technologies are jostling in the more than $70 billion global market,one or two of the smart ones will become huge winners like Intel or Microsoft.So which are the solar startups which are showing the most promise.Four of them are currently leading the pack while a few others have got a reasonable chance of success as well though they need to prove more like Stion and Miasole.Some of the more hyped ones like Solyndra have gone on a slimming down mode and might make a comeback though it will be tough.There are some others in stealth mode which may become big also.But here is the list of the Four Best Solar Startups in the Solar Electronics,Solar Panels and Solar Thermal Sectors.
April 15, 2011
Renewable Energy Companies have started going public in a big way in the last 5 years as the Wind Industry has gone by around 30% CAGR in the last 10 years and the Solar Industry has grown by 50% CAGR.Both these industries have seen investments of more than $70 billion each in 2010.Solar companies which did not exist in public stock markets before 2006 have seen over 100 listings in the last 5 years in different stock exchanges around the world.Wind Industry which has been around much longer has not seen a lot of listings in the last 5 years as most of the companies are already listed.However a number of Chinese companies which have seen spectacular growth driven by the 100% growth per annum in the Chinese market have seen a number of listings.Other Renewable Energy companies have not been that prolific in public IPOs,though a number of clean technology companies have listed in the NASDAQ Market like Amyris,Tesla,Zipcars,A123 Systems and have gotten a good response.However for Renewable Energy Companies the USA Stock Markets have not proven very receptive in the last couple of years after seeing a boom of Chinese Solar Company listings.So which is the best stock market and the worst stock market to list if you are a Renewable Energy CFO?
April 15, 2011
eSolar is a US based Solar Thermal Technology Startup which has managed to raise $182 million from top VCs and investors and managed to win contracts to build solar power plants using its properietary Power Tower Technology in the US,China and India.Note like Brightsource Energy,eSolar is one of the most promising CSP startups which has managed to get funding and contracts,it now needs to execute to deliver on its potential.
Solar is using the Power Tower Technology same as Brightsource Technology which differs from the parabolic trough mainstream CSP Technology.Note Parabolic Trough Technology is used by most of the established Spanish players like Abengoa.It is also the Technology used in the 392 MW largest solar thermal plant in the US built in the 1980s by Luz.In this technology thousands of heliostats (mirrors) reflect the solar light onto a "Power Tower" where water or salt is heated up.This heat energy is then transferred into Electrical Energy through standard Steam Turbines and Generators used in Gas,Nuclear and Thermal Power Plants.
April 15, 2011
Suniva is the only crystalline solar Solar Companies in the US which has been able to survive and thrive in recent times.Sunpower too has resurrected itself through strategic JVs and acquisitions.The main reason for the decline of the US solar companies has been the severe competition from the low cost Chinese Solar Industry.This has made companies like Energy Conversion Devices and Evergreen Solar shut down US factories and look towards Mexico and China to build low cost factories.However Suniva has managed to face all these competitive threats quite successfully and is looking to expand capacity in the US by building a 400 MW factory.The company even refused a DOE Loan Guarantee saying that the terms were too onerous.The company has manged to raise more then $130 million in equity and has won contracts to supply high efficiency solar cells to the Asian companies which is a first.Suniva differentiates itself through its technology which allows the production of high efficiency monocrystalline solar cells at lower cost.Note Sunpower makes the highest efficiency cells in the world in the range of 22-24% but its cost structure is too high.Suniva is looking to challenge the Taiwanese Cell Producers by marrying higher efficiency with lower cost.
April 15, 2011
Renewable Energy Investments surpassed investments in Fossil Fuel Electricity investments in Europe and USA in 2010 as developed countries focused on alternative energy as a solution to the problem of Global Warming and higher Fossil Fuel Costs.While Wind and Solar Energy are currently the dominant forms in different types of Renewable Energy,others like Tidal and Wave Energy are also seeing a lot of investment in R&D.The major advantage of Renewable Energy is that it does not emit GHG which is the leading cause of Climate Change.While this is the biggest Need for Renewable Energy other needs are equally if not more important.Here are the most important needs of Renewable Energy
April 15, 2011
Areva the French Nuclear Giant which is known more for producing equipment for nuclear power plants is been awarded federal funding by the Australian Government to build a solar coal hybrid plant in Queensland.The 44 MW Concentrated Solar Power (CSP) Plant will be built near a 750 Thermal Power Station.This will be the second solar coal hybrid plant in the world when its gets finished in 2013.Note Areva has huge plans in the Solar Thermal Technology Industry after buying startup Ausra sometimes ago.The company which is an expert in power plant equipment technology such as boilers,turbines will use its expertise to build a CSP plant adding to the power output of the Kogan Creek Thermal Station.Note the cost mentioned implies around $2.4/watt which does not seem expensive.The CSP Coal Hybrid will not require storage which will help in reducing the costs of the power plant.Note a number of Fossil Fuel Solar Hybrid Plants are being planned around the world.Almost all of these power plants use CSP Technology instead of the PV Technology.Its a valuable niche for Solar Thermal Companies to explore as they face huge competition from Solar PV which is drastically reducing its costs to reach retail electricity price equality.
April 15, 2011
Spain has started cracking down on Solar Power Plants which are making huge profits through illegal Feed in Tariffs which they should not get.Note Spain had seen a massive boom in solar installations in 2008 due to unusually large ROI driven by high Feed in Tariffs.FIT are electricity rates which are higher than wholesale electricity rates paid to renewable energy power plants in order to make them competitive with cheaper fossil fuel power plants.Seeing a huge increase in the subsidy burden Spain has pretty much killed the solar market in 2009,however the problems of Fiscal Deficit has made Spain reconsider the tariffs being given to even older solar power plants.After a lot of controversy,Spain changed the FIT rules in the middle of the game through a retroactive FIT Law drawing howls of protest from solar investors like pension funds which have sued the government
April 14, 2011
Solar Power is the only form of Energy whose costs are continuously declining compared to other forms of Energy.This is one of the biggest advantages of Solar Power over other renewable and non-renewable forms of energy.Solar Energy costs have declined by over 50% in the last 2-3 years even as Coal,Oil,Gas and other Energy costs have gone up.While Wind Energy costs have declined in the last year the overall trend is increasing as the costs of copper and steel go up.This is one of the main reasons why solar energy demand has gone up by 150% in 2010.With solar costs going down by another 10% each year over the next few years,expect Solar Energy to grow at a further fast rate in the future as well after growing at 50% CAGR over the last decade.Here are some of the advantages of Solar Energy over other non-renewable energy forms
April 14, 2011
First Solar Thin Film Leader and the largest solar company by value has decided to shift focus towards the commercial segment between 10-30 KW in size..The company was promoted by Wal-Mart promoters and has seen remarkable growth in the last few.This US based company uses Cadmium Tellurium (Cd-Te) Technology and is the lowest cost panel producer in the world today if you don’t include any penalty for low efficiency.Note First Solar derives most of its revenues from large utility solar power plants where the lower costs of its Cadmium Tellerium Solar Panels compensates for the Lower Efficiency of its Solar Panels.It does not get too many sales to the commercial and residential market where its lower efficiency panels lose out as they require much larger space to generate the same amount of power. First Solar Panels don't sell well in applications where space is a constraint.Note Sunpower which is the highest efficiency commercial c-Si solar module producer wins out in applications with space constraint.
April 14, 2011
Micro inverters in Solar Energy is a recent phenomenon which has started replacing solar string inverters in residential small solar installations in a small way in USA.Enphase Energy has been instrumental in making this niche technology popular which increases solar panel efficiency by 5-25% and has a number of other advantages over central inverter as well.This has made the major solar inverter companies sit up and even introduce microinverters even on their own.Though the Costs of the Solar System are increased as microinverters cost more per watt,however the reduce the lifecycle costs in small installations through increased reliability,life and productivity.As the Solar Industry has matured,focus has shifted more towards the Levelized Cost of Energy (LCOE) from Solar Panels Electricty generation rather than just on the Solar Capital Investment costs.Solar Mic
April 14, 2011
Solar Microinverters typciall sell for 75-90c/watt which means that if all the solar installations in the world at around 18 GW were done using microinverters,then the size of the addressable market would be $12.5-16 billion,however a lot of the installations are larger than 1 MW in which micro inverters are not used.Also micro inverters are mainly sold in the US and Canada so the total size of the addressable market becomes more like 500 MW which is around $$375-450 million dollars.Enphase Energy the biggest microinverter manufacturer has sold around 500,000 prouducts which implies total lifetime revenues of around $40 million.According to IMS Research around 1 GW of microinverters would be installed in 2013 and the market size would be around $700 million.I think the market size will be greater given that other geographies have not been penetrated,the residential solar market is growing faster and more companies will lead to a bigger market
April 14, 2011
Solar Microinverters have opened an entire new category in the traditional Solar Inverter Industry threatening the business model of the incumbent companies which have seen spectacular growth in recent years.Solar Inverter Manufacturers have enjoyed enviable growth of more than 50% CAGR to become a $5 billion industry in 2010.However this industry faces competition from a host of new tiny competitors led by Enphase Energy who claim to reduce costs,increase reliability and add monitory plus flexibility as compared to String Inverters.The threat is the most in residential and commercial solar installations where the advantages of solar micro inverters are more pronounced than in utility applications.Solar EPC Companies in the USA have started adopting this new product though the growing size of the Solar Inverter Industry has managed to temporarily lower the thread.SMA Solar,the biggest solar inverter company in the world recently bought a couple of firms like OKE Services to increase its presence in distributed electronics for the solar panel industry.Here is a list of advantages and disadvantages of Central Inverters and Microinverters.
April 14, 2011
Enphase Energy is one of the most innovative solar startup companies that have come up in the USA especially without a billion dollar DOE Loan guarantee backing it up.Enphase Energy makes solar products that help in the production of solar energy from solar cells rather than being involved in the production of solar panels themselves.Enphase has created an entire new category of Solar Inverters - Micro-Inverters.The company which has private has plans to do a stock listing through an IPO though no date has been announced.Enphase not only does the mundane task of converting the DC Solar Energy into AC Electricity usable by household appliances,but also incorporate communication chips which allow the monitoring of the performance of the solar panels remotely through the Internet.Enphase Energy has also entered into the closely related "Energy Efficiency" Industry by selling Smart Thermostats which can remotely monitor and manage the temperature of a house.Enphase has sold around half a million microinverters till date and has recently tied up with Siemens to distribute its products to installers worldwide.
April 13, 2011
Nuclear Recycling is the processing of the nuclear waste generated from the nuclear fuel cycle to extract useful elements like uranium and plutonium which can reused again in the Nuclear Fuel Cycle to generate electricity.About 97% of the used fuel can be recycled leaving only 3% as high-level waste. The recyclable portion is mostly uranium depleted to less than 1% U-235, with some plutonium, which is most valuable. Arising from a year's operation of a typical l000 MWe nuclear reactor, about 230 kilograms of plutonium (1% of the spent fuel) is separated in reprocessing. This can be used in fresh mixed oxide (MOX) fuel (but not weapons, due its composition). MOX fuel fabrication occurs in Europe, with some 25 years of operating experience. The main plant is in France, and started up in 1995.Major commercial reprocessing plants are operating in France and UK, with capacity of almost 5000 tonnes of used fuel per year, - equivalent to at least one third of the world's annual output. A total of some 90,000 tonnes of spent fuel has been reprocessed at these over 40 years.
April 13, 2011
Nuclear Waste is one of the biggest disadvantages of Nuclear Energy generation apart from the dangers of nuclear reactor accidents,weapons proliferation etc.Governments around the world have mismanaged Nuclear Waste Management leaving the solution to another day.This procrastination has led to thousands of tons of nuclear waste being stored in temporary dry cask and wet pools.This High Level Nuclear Waste poses a big danger to human health from nuclear waste effects.Nuclear Energy proponents say that Nuclear Energy is quite safe with numerous safeguards but Nuclear Waste Accidents happen with alarming regularity around the world leading to a number of Radiation Deaths.Nuclear Waste Accidents and Deaths are even reported in countries which don't have Nuclear Power as Nuclear Waste is dumped in developing countries which have little environmental safeguards.Here is a list of some of the major nuclear waste accidents that have happened.
April 13, 2011
Nuclear Waste is generally a variety of solids,liquids and gases which are produced during the generation of nuclear energy during fission,mining of uranium,nuclear research and weapons production. They are normally classified as low-level, medium-level or high-level wastes, according to the amount and types of radioactivity in them.Nuclear Waste is radioactive and that is the primary cause of the negative effects on human health and bodies.Note Radiation iin small amounts do not cause any lasting damage as humans are exposed to natural radiation from radioactive deposits occurring naturally beneath the earth.However large doses or prolonged exposure to moderate radiation can lead to permanent problems and even lead to death.Note Nuclear Storage Policies are a complete mess around the world with no permanent geological sites being approved.
April 13, 2011
Nuclear Waste is one of the most difficult waste products to transport and store because of its dangerous radioactive effects.Given the long life of some of the transuranic elements Nuclear Waste has to be stored in a safe manner for thousands of years which is a tough given that the chances of leakage become enormous in such a long time scale.Storing of Nuclear Waste has to be performed in a extremely complicated manner which is also enormously costly.Also there are problems of NIMBY with Nuclear Waste Storage as nearby residents don't want such toxic waste stored anywhere close especially as it does not bring any economic or social benefits.Not there is no permanent storage site despite many decades of planning and billions of dollars being spent.While Japan and Europe reprocess the fuel in the hope that they will be used again that remains a dream with thousands of tons of HLW piling up.USA does not reprocess and also has more than 60,000 tons of nuclear waste waiting for a final home.Till then most of the spent nuclear fuel is being stored in spent fuel pools and dry casks making them vulnerable just like another Fukushima
April 13, 2011
Nuclear Waste has come under sharp focus after the Fukushima Nuclear Disaster in which Spend Fuel Rods were one of the biggest causes of the radioactive emission which has led to the Japanese Accident being labelled as INES Level 7 which is equal to the Chernobyl Accident.One of the biggest disadvantages associated with Nuclear Energy is the problem of Nuclear Waste which is generated after the Nuclear Fuel (Uranium) is processed.The transuranic elements which are produced have half lives of hundreds of years making it a difficult proposition to transport,handle and dispose them.A Number of Nuclear Plants have not factored in the high costs of Nuclear Waste Disposal making it another big issue in the problem of Nuclear Waste
Nuclear Waste is the biggest con of Nuclear Electricity after the potential risks of a plant meltdown.Note Nuclear Waste is an ongoing problem and it has not been resolved in the USA where a permanent facility at Yucca mountains has run into a massive controversy.The long life of High Level Nuclear Waste,its pernicious effects on human health and difficulty in handling and storing make it difficult problem.However Nuclear Electricity forms almost 15% of the global electricity production and the tons of Nuclear Waste have to be dealt with however problematic and dangerous it might be
April 12, 2011
Clean Coal Technologies – Greenwashing or Reality – List of Coal Technologies – IGCC,CHP,FBC,UCC,CCS
Coal is the largest source of electricity supply in the world with 41% of the global power coming from the burning of coal.The Pros of Coal have made the growth of Thermal Power Plants accelerate in developing countries like China and India.This has made Coal Stocks run up by more than 150% in 2010 and another 30% in 2010.However Coal is also the greatest contributor to Greenhouse Gas Emissions.Coal is also responsible for thousands of deaths directly and indirectly due to Coal Mining and Coal Combustion which leads to waste products like Mercury,Arsenic etc which are extremely toxic to human health.To solve the twin problems of cheap energy and global warming, a number of technologies have been been proposed which would reduce the harmful effects of Coal Combustion.
Despite a number of Clean Coal Technologies being developed and employed,carbon emissions from Coal Ming and Use can only be partly reduced and will not make a major impact on the problem of Climate Change.Clean Coal Technology is not a Green Solution to the Disadvantages of Coal.Saying that implementing Clean Coal Technology will result in Climate Change Mitigation is Greenwashing.That said these technologies need to be implemented till the world is ready to move away from its addiction to cheap energy provided by Coal even though it has a deleterious long term affect.
April 12, 2011
Solar Power Plants have mushroomed in different parts of the world as Global Solar Demand has increased by more than 150% in 2010.Solar Power Plants built on the Ground differ from that put on the Roofs of Houses as they require to go through feasibility,environmental assessment,grid connection,siting etc. which is typical for a large industrial project.The time taken to build a solar power plant project is also much more than a rooftop residential solar installation.Solar Farms are being mainly being built in countries which have subsidy program like tax rebates,feed in tariffs etc.However building a solar plant has become quite easy unlike in the past as solar panel,solar inverters and installation expertise is more easily available.The regulations and permits for building a solar plant or a solar farm on the other hand differ from country to country and region to region depending on federal and state laws.For a Large Solar Plant like the Aqua Caliente,there are a number of permitting steps that have to be passed before the plant can be built.For smaller power plants in the 5 MW range the requirements are less.In general the smaller the size of the solar installation,the lower the number of regulations required.Here are the steps required in building a Solar Power Plant
April 12, 2011
Solar Lamps or Solar Lanterns have seen astounding growth in India driven mainly by the lack of access to electricity and the high costs of Kerosene or gas lamps.Note Solar Lamps have been so successful in India mainly due to their economic utility rather than their Green Characteristics.Note 100,000 Indian villages do not yet have electricity which means that the productivity comes to a complete stop in the dark.Poor schoolchildren cannot study in the dark and people cannot work in the night either.Note Kerosene a dirty oil refined product is the main source of energy for millions of Indian citizens.Kerosene is a health hazard resulting in accidental fires and causing a lot of smoke which can lead to various respiratory diseases.Note Kerosene is subsidized by the Indian government and distributed through the Public Distribution System (PDS) which is a massively corrupt and inefficient system.The Kerosene is given in limited quantities and is not sufficient to Light the Darkness for a month or more.The advent of Solar LED Lamps has been a godsend solution to this problem.
April 12, 2011
Solar Power In India is seeing massive growth driven by favorable government subsides,India's rising Energy Demand and Declining Costs of Solar Energy.PV Solar Systems not only consist of Solar Panels but also of Solar Inverters,Wires,Junction Boxes and other Balance of System Equipment.Solar Inverters are the most important part of a Solar Panel after Solar Panels and form around 10-15% of the Solar System Cost though it can be more or less depending on the type of technology,vendor etc.Solar Inverters in India are mostly imported though a few domestic and interanational manufacturers have set up manufacturing operations.Note Solar Inverters had been in shortage in 2010 due to a shortage of IGBTs which are semicondutor components.However a rapid capacity expansion by major solar inverter manufacturers like SMA,Power-One has led to a glut in solar inverters.Solar Inverters can cost between 30-60c/watt depending on the type,size,vendor etc.The ~$2.1 billion market in 2009 with 7 GW of installations has increased by more than 130% to around $5 billion in 2010 as the solar panel demand globally increased to around 17 GW.Note Solar Inverter Companies have done much better as competition is much lower and the annual price declines in solar inverters has been much lower at around 10% compared to the 50% decline in solar panel in the last 2-3 years..Note Solar Inverters are required for all types of Solar PV applications like Thin Film,CPV and Crystalline.
April 12, 2011
Type of Renewable Energy have been increasing with development in Technology and the imperative of using Alternative Energy as Fossil Fuels deplete and increase in costs.Besides Global Warming has made the benefits of Renewable Energy seem more attractive with each passing year.Note though there are many niches Renewable Energy types,the Three Major Forms of Renewable Energy are Solar Energy,Wind Energy and Biomass Energy (Biofuels).Nuclear and Hydro Energy are not considered as Renewable Energy according to the strict definition of Renewable Energy.However Hydro and Nuclear Energy both are responsible for more than 15% of global electricity production each.The clean energy industry saw a 30% increase in investments to $243 billion in 2010 which was another record year for Renewable Energy Capacity addition.Around 18 GW of Solar Energy and 38 GW of Wind Energy were installed with Solar Energy Capacity increasing by a whopping 150% from 2009.\wind power continued to lead at $95 billion. The solar sector is experiencing significant growth, with investments growing at 53% to $79 billion (source Pew).