Solar Roof
March 19, 2013
Dow Chemicals buy Nuvosun Materials giant Dow Chemicals has bought the entire equity stake in CIGs solar startup Nuvosun to bolster its solar shingles line up. […]
February 4, 2012
We would like to incorporate BIPV solar tiles or roofing when we build - so we are trying to find out a this point what products are now available in Australia and what our choices would be and the range of prices each would be in ...just to give us a starting point as we begin to pull all the ideas together ?
We'd really appreciate any information you can send our way that would help us achieving this - the brand/type of BIVP we can use, the best inverter and battery you'd recommend - obviously it will depend on where we are and how much sun our roof will get - but we plan to make it as much as is possible as we'd like to be able create 100% of our power needs or if not at least 80 % . At present as a guide my household uses approx 10.7 khw of power a day - so that will give you an idea of how many solar tiles we'd need perhaps ...if the sun was at its optimum ? We hope to be building on a reasonably sunny block between Ferntree Gully and Belgrave on the high side near bushland ...beginning in a couple of months or so
August 16, 2011
Sharp is the largest solar company in the world by revenues and has been so for the last few years despite massively increasing competition from Chinese Solar Panel Producers.While other Japanese conglomerates like Sanyo,Mitsubishi and Kyocera have substantially lost solar panel marketshare ,Sharp has managed to retain its leadership position.Though companies like First Solar and Suntech have shipped more solar modules than Sharp,in terms of total dollar sales Sharp is still on top.Sharp which used to make polycrystalline and monocrystalline silicon solar panels has diversified into producing thin film amorphous silicon solar panels.The company has also entered the solar IPP and solar development business in collaboration with Enel Green Power and by acquiring a US Solar Developer Recurrent Energy.However in core solar panel production,Sharp has much higher costs and has lost money consistently.Sharp sells Solar Systems and Solar Inverters as well as Solar Modules.However the challenges in the solar market are considerable with well funded low cost competitors from China and South Korea.Sharp faces the toughest years of its solar history as it fights to survive in this cut throat Solar Market
August 1, 2011
BIPV is the acronym for Building Integrated Photovoltaics which means the integration of photovoltaic materials into building structures such as roofs,windows and facades.It not only replaces the building supplies but also generate electricity creating a killer green product.This is one of the fastest growing segment in the solar industry and it has been estimated that almost 6-7% of the solar industry is made of BIPV products.A wide variety of technologies and products are being used in creating BIPV products.Though a large number of big solar panel manufactures like Suntech,Yingli,Canadian Solar have come out with BIPV Panels and Products,the segment has not become as big mainly because of higher costs vis a vis the standard crystalline solar systems.There are also specialized BIPV suppliers such as Ascent Solar and Konarka whose products are more suited to the BIPV Industry than the normal module industry.Some of these suppliers have no option as their technology is no longer competitive with the Chinese solar panel producers.Solyndra had a niche product which could be used in rooftops with ease of installation and low weight.However the high costs drove it to bankruptcy.The next leg up to the BIPV industry should come up with more BIPV products from the Major Solar Companies and as cost of solar silicon decline further with scale and innovation
July 7, 2011
Petra Solar Inc is a US Company that has an innovative marketing model to install solar panels.Like floating solar panels and solar carports,Petra Solar has taken a new unique approach to increase the penetration of solar panels.It deploys solar panels on utility poles instead of ground mounted free standing solar panels or rooftop installations.The company mainly signs deals with electric utilities instead of regular distribtution channels through solar integrators or installers who then put solar panel of the roofs of houses.This reduces the marketing costs for the company has let it carve out a niche in the super competitive solar market which has recently seen the exit of many solar companies.Petra Solar is now expanding into the Middle Eastern markets after the USA.The company recently bought Jordan-based EnergyFlow Consulting LLC
July 6, 2011
Solar Shingles are niche solar products meant for use on roofs of houses.There are not a lot of manufacturers of solar shingles as they are a new product and more difficult to install than standard silicon solar panels.Solar Shingles are manufactured by mainly American companies like Dow,Energy Conversion Devices.Their high costs and lack of easy availability has meant that solar shingles have not really caught the imagination of the customers.Also Solar Shingles do not get any added subsidy from the government vis a vis Solar Panels.Thus the higher prices of electricity generated from solar shingles means that they have become a poorer cousin of the mainstream Solar Panels.Also Solar Integrators are more accustomed to buying and installing solar panels which makes it even more difficult to push the sale of solar shingles.
July 6, 2011
Solar Panels have decreased dramatically in cost from about $800 in 2008 for a standard 200 Watt Solar Panel to about $300 which means more than a 50% decrease in costs.In these days when the price of electricity and energy is constantly increasing this is an amazing fact and the decreasing cost of Solar Energy has made it the biggest Advantage of using Energy from the Sun.Cheap Chinese Solar Panels can be now be bought as low as $250 in bulk which implies that you can easily buy a Solar Array of 10 Solar Panels for your home at a cost of as low as $2500 .While the initial investment may look high you can look at electricity savings for 25 years as Solar Energy requires NO FUEL and very little maintenance as well.Solar Panels are already ubiquitous in places like Germany and Italy which have strong government support programs called Feed in Tariffs.With prices of energy increasing and Global Warming,its a matter of time when Solar Panels become as common as Lights in your home and offices.Solar Panels Installation is normally done by a Solar Integrator or Installer who decides on which Solar Panels to Buy and Designs the Systems.But as an owner of a Solar Panel System you must have a good idea otherwise you might get cheated upon.
July 5, 2011
Solar Panels Demand has exploded in Ontario Canada boosted the the provincial government MicroFit program which gives a generous feed in tariff (higher electricity price) for the solar power generated from silicon solar panels fitted to your home or office.The Feed-in-Tariff depends on the size of the solar installation and is guaranteed for 20 years at a fixed price.This implies that you not only save on power bills but also get a much higher electricity price for the solar energy electricity that you are generating.This has led to a veritable boom in solar panels sale in Ontario and made it the fastest growing solar energy region in the whole of North America.However solar panels cannot be bought from anybody to qualify you for a government rebate.Only Solar Panels which meet the domestic production criteria can get solar rebates from the government.
July 5, 2011
Solar energy usage is an excellent, eco-friendly and cost-effective way to "Go Green". It is a very effective measure to save energy & money. We use the solar energy every day in many different ways.Solar Energy is indirectly responsible for other forms of Energy that we use as well like Coal,Oil,Gas,Hydro Energy etc.The biggest use of Solar Energy is in Agriculture where Sun Light is used by plants to grow and provide food for us.Solar Energy despite many years of development is not used in the generation of Electricity due to its higher costs.However that is going to change as Solar Energy 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 forms just 0.1% of the the total energy supply of the planet currently and analysts and decision makers don’t think that Solar Energy can form a big chunk in the future as well.However I differ strongly in that aspect.The main reason for my very bullish opinion on Solar Energy is based on the simple fact that Solar Energy is the only form of Energy whose costs are declining rapidly on a secular basis.In a world facing the prospects of “peak commodity”,solar energy remains vastly abundant and it remains upto human technology to capture it at the lowest costs
May 10, 2011
JSW Energy has set up JSW Green Energy a 100% subsidiary to enter the renewable energy in India.Not while Wind Power in India is already a huge industry with more than $3 billion in annual investment,Solar Power in India is set to eclipse this soon.JSW Green Energy is looking to set up solar power plants and solar rooftops in the country.For this it has ordered 500 KW of CIGs solar panels from embattled American Thin Film company Energy Conversion Devices.Note ENER is already under huge pressure as it fails to compete with low cost Chinese players.ENER which markets its BIPV Solar Panels under the United Solar brand sells mostly in France and Italy which have higher subsidies for BIPV Panels.Like other American companies ECD has significantly ramped down and moved Green Jobs to Mexico in order to suriveNote CIGs Panels are of lower efficiency than the normal mainstream crystalline solar panels.ENER Solar Panels are mostly used in BIPV and BAPV applications since they are not as cost effective and efficient as normal solar panels.Thin Film in India is rapidly increasing penetration with the Thin Film Leader First Solar targeting 100 MW of Solar Panels in 2010 itself which would make it the biggest solar panel supplier in India.
May 2, 2011
Solar Panels have grown exponentially in the last few years driven by declining costs and growing energy prices.The advent of the low cost manufacturers of silicon solar panels from China,falling raw material polysilicon costs,subsidies from governements fighting climate change have all contributed to the more than 150% increase in world solar demand in 2010.Solar Panels are not only being used on roofs and giant rooftop ground plants,but also are being integrated in buildings known as BIPV applications.Solar Panels are also available in flexible forms which can be used in backpacks and other innovative ways.Now there is another niche for solar panels that is growing.Note most of these companies are using the Concentrated Photovoltaic Technology (CPV).The traditional CPV suffers from heating problems as high concentration of sun power leads to high temperature.Building the CPV systems on water will help them solve their problems according to these companies.
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.
March 30, 2011
Solar Roofs are a niche area but is growing in popularity with the entry of more and more companies selling products tailormade for this area.What are Solar Roofs exactly - does it mean a Roof with Solar Panels installed on it or something else.Solar Roofs are not roofs where solar electricity is generated by putting in solar mounting/racking systems and mainstream solar panels,rather they are roofs where specialized solar products called solar shingles are installed.Solar Roofs can also mean a roof where Building Integrated Photovoltaic products are installed.Some companies make BIPV products like flexible solar panels or organic/dye solar cell panels ( these are niche companies).