Power Grid

July 4, 2023

Now Save Up to 20% on Electricity Bills with the New Tariff Rule in India

The Indian government has recently introduced a new tariff rule that will allow consumers to save up to 20% on their electricity bills. The new rule, […]
March 15, 2023

Why Power Grid Shares Are A Buy on Decarbonization & Green Energy Trends

Power Grid is a government-owned company that started in 1984 and was listed on the Indian stock exchange in 2008. The company belongs to the Transmission […]
August 30, 2013

India and China look to invest billions in new Power Grids for Renewable Energy Growth

Power Grid in India and China China and India are investing billions of dollars to increase their transmission capacity to accommodate the sharp growth in renewable […]
March 27, 2013

Tamil Nadu offering 12c/KwH to Bidders

India’s southern state of Tamil Nadu is trying to fix a price of 12c/Kwh with bidders under its 1000 MW solar auction scheme. GWI has been […]
December 4, 2012

Problems with Tamil Nadu Solar Energy Crops up despite Huge Enthusiasm

Problems of Tamil Nadu Solar Energy In Greenworldinvestor, we earlier wrote about Tamil Nadu’s Solar Energy Policy which had generated huge investor interest. The main reasons […]
October 17, 2012

Australia exploits below cost Chinese Solar Panels while USA imposes Duties

China as a Boon for Australia Australia has seen its economy boom over the last 10 years, thanks to the voracious appetite for commodities from China. […]
August 21, 2012

Uttar Pradesh Solar Policy promoting Land Hogging Ground Mounted Solar Farms seems Misguided – Sets 1000 MW Target in next 5 years

Solar Policy in Uttar Pradesh India’s largest state in terms of population Uttar Pradesh, is set to come out with a 5 year solar policy to […]
August 13, 2012

Why Indian Judges are Asking for Solar Power?

What we have been writing about in Greenworldinvestor that solar power in India will be the biggest energy opportunity in the 21st century, which has been […]
January 16, 2012

Why Solar Inverter Top Dog SMA Solar is Losing Marketshare, Facing Uncertain 2012

SMA Solar ,the biggest German Solar Energy company is now losing marketshare to the new solar inverter manufacturers in USA and China. Note SMA Solar held a dominating 40% solar inverter global marketshare in 2010 compared to the solar panel manufacturers none of which has managed more than a 10% marketshare . SMA Solar however is now feeling the heat of the competition as solar energy prices continue to go down steadily. The pressure on the solar inverter companies has been increasing as solar inverter prices as a percentage of the total solar system cost has risen from 5% to almost 10% now as solar panel prices have come down much more rapidly.
January 5, 2012

Satcon US Utility Solar Inverter Maker slashes 35% Workforce as Oversupply hits Inverter Segment

Satcon the US solar inverter producer has been 0ne of the worst hit solar inverter manufacturers and has seen massive reduction in revenues and profits.With the solar industry in massive oversupply,the photovoltaic inverter market has also seen a big hit.While the bigger solar inverter producers like SMA Solar and Power-One too have seen job reductions and revenue hits,Satcon has been worse hit due to its small scale.The company has now decided to slash 35% of its workforce consisting of 140 solar jobs due to the ongoing solar crisis.Note other solar companies in the USA such as Solyndra,Spectrawatt have completely closed down while the smaller ones are on the verge of closing as well.
July 8, 2011

Xantrex Solar Inverter,Battery Charger Review – Understanding the Company,Prices and Models (400,3000) (Australia,USA)

Xantrex Inverters are one of the most popular brands of solar inverters used in residential installations and come in a wide variety of models.Xantrex was one of the first companies to exclusively manufacture inverters for the photovoltaic market.The company was originaly based out of Canada and listed on the Toronta Stock Exchange.The company has offices in in the United States, Germany and Spain and China.The fortunes of the company changed when it was bought over by one of the biggest power equipment companies Schnieder Electric.However the solar inverters from Xantrex have retained their brand name even after the acquistion.Note Xantrex also manufactures solar inverter chargers and solar battery chargers .Xantrex focuses on the power electronics for boats, recreational vehicles, heavy-duty trucks, utility and automobiles.
July 8, 2011

Solectria Inverters Review of Price,Warranty,String Sizing,Monitoring(Solar PVI 3000,5000)

Solectria Renewables LLC is a US based solar inverter company that was founded in 2005 in Massachusetts by a group of MIT engineers.The company has expanded quickly to 1 GW of grid tied pv inverter capacity in USA alone and is looking to set up smaller solar inverter factories in China and India which are looking to be the next high growth solar markets.Solectria Renewables specializes in large sized grid tie solar inverters ranging from 1.8 kilowatts to 500 kilowatt sizes.The company sells its solar inverter solutions to residential,commercial as well as utility customers.The company also sells a String Sizing Tool and SolRen monitoring software.The company received a grant to develop Smart Grid capable solar inverter from DOE.Note Solar Inverter Manufacturers are currently facing increased competition from Chinese low cost players as well as new companies.Satcon,AEIS and Power-One which are the biggest US Solar Inverter companies have already seen their revenue and profit growth go down due to decreased demand growth and falling prices.However there is greater differentiation and technology barriers in high end solar inverters than in solar panels in which Chinese are dominating currently.Solectria is differentiating itself by its decently priced solar inverters which are high efficiency pv inverters as well
July 8, 2011

SMA Solar Inverters (Sunny Boy,Sunny Island,Sunny Mini Central) – Review of Price,Brand,Comparision

SMA Solar is the world's biggest supplier and manufacturer of solar inverters with 40% marketshare of the world market of solar inverters.This Germany company has become the most valued solar company in Germany beating out the old stalwarts like Q-Cells and Solarworld. SMA Solar has managed to maintain its marketshare and grow as fast with the global solar demand unlike some of its competitors.The company has been one of the few solar companies in the globe abe to maintain their margins despite a massive gut of solar panels which have brought down solar panel prices below cash costs.Over 3.5 GW of SMA solar inverters are installed globally and the company employs thousands of people Globally.SMA Solar is now facing still competition from Chinese companies who have a dominant presence in the growing domestic market of China and also from competitors like Power-One,Satcon and others who have entered the hugely profitable and growing market of solar inverters.Besides these pure play solar inverter companies,industrial giants like Schneider Electric (Xantrex solar inverters),GE Solar Inverters,ABB and Siemens too are biting at SMA's heels.SMA Solar is facing competition from the growing presence of solar micro inverters led by companies such as Enphase which threaten to reduce the market for the normal solar inverters.However SMA is known as the best brand of solar inverter in the industry for its high quality and reliability.SMA Sunny Boy inverters are known for their high efficiency and good performance .Despite the higher prices charged by SMA Solar,the company has managed to keep its top dog spot in the solar inverter market.
July 7, 2011

Petra Solar – Review of Company Business Model,Panels (Sunwave AC Systems),When will the Stock be Listed

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 7, 2011

Photovoltaic Inverter – 101 on PV Inverter Suppliers and Manufacturers and Prices

Photovoltaic Inverter or Solar Inverters as they are better known as have become one of the fastest growing segment in power electronics. 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.Photovoltaic inverters are not being manufactured by hundreds of suppliers around the world though the top 5 solar inverter manufacturers control almost 75-80% of the market.The reason is that solar inverters have a high technology barrier when it comes to making highly efficient and reliable solar inverters.Till now Chinese manufacturers have not been able to significantly penetrate this solar inverter market because of this.In comparision Chinese solar module producers have captured more than 50% of the global solar market through cutthroat price and cost cutting leading Western solar panel producers like Solarworld to try and get dumping duties imposed on them.SMA Solar is the world's biggest Photovoltaic Inverter manufacturer and is closely followed by US based Power One.
July 6, 2011

Fronius Solar Inverters – Review of Sale Price,Technology and Models

Fronius Solar Inverters are made by one of the oldest private companies in the solar inverter business.The firm is established by Günter Fronius in Pettenbach, Austria, and commences production of battery chargers and welding transformers.ronius International has production bases in Austria,Czech and Ukraine and the company generated almost 500 million euros of revenue in 2010.Fronius manufactures 3 major product lines under three divisions Battery Chargers,Welding Products and Solar Electronics.Solar Inverters come under the Solar Electronics division.Fronius has been involved in photovoltaics since 1992.In 1995 it started selling the "Sunrise" grid-connected solar inverter for generating electricity from solar energy and feeding it into the power grid.
July 6, 2011

3 Phase Solar Inverters Basics and Manufacturers in Taiwan and China

3 Phase Solar Inverters are another name for Grid Tied Solar Inverters which allow the DC Power generated by Solar Panels to be connected through the Grid.Note most of the Solar Inverters manufactured earlier used to be off grid solar inverters and did not have any grid connections.However the Feed in Tariff Laws in Germany and other European countries has made 3 phase solar inverters a massive growth industry.All major solar inverter manufacturers make 3 phase solar inverters in a wide variety of power ratings and voltages.The difference between a 3 Phase Solar Inverter and a normal Solar Inverter is that the Three Phase Solar Inverter has to match the frequency and voltage of the Grid before it supplies power.Normal Solar Inverters on the other hand are not restrained by the voltage and frequency of the power grid.The grid tie inverter must synchronize its frequency with that of the grid (e.g. 50 or 60 Hz) using a local oscillator and limit the voltage to no higher than the grid voltage.
July 6, 2011

Solar System Inverter Efficiency Tutorial on Curve,Types (CEC,European,Average)and Comparision – PV Efficiency Increasing Every Year

Solar Inverter Efficiency is increasing every year with increasing scale of operations,greater competition and rising R&D dollars being poured into solar inverter development.PV inverter Efficiency is vital to decrease the costs of solar power which is currently more than that of fossil fuels.While the cost of solar panels has come down drastically by almost 75% in the last 3 years,solar inverter costs have gone down by only 10% every year at most.The reason is that competition is lower in the PV inverter market because of the higher entry barriers of technology.While Western solar inverter manufacturers routinely get above 95% efficiency,the Asian low cost players have not been able to cross the technology hurdle of high efficiency.Note the Power Electronics in a solar system can make a huge difference to the power yields with even a 1% change resulting in thousands of dollars in difference in large scale solar farms.This is the reason that high efficiency solar inverters from the West command a big price premium over the less reliable lower quality PV inverters.You should be careful of any lesser known inverter brand they are offered as part of a home solar power system before installing them. While some of these inverters may have certification this does not mean they can perform as well as the good brands.Skimping of a few dollars here and there may make you penny wise and pound foolish.
July 6, 2011

Solar Panel Size -What is Standard Solar Module,Cell Dimensions,Size,Cost and Calculating your Electricity Requirements

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 6, 2011

Australian Solar Inverters – Review of Manufacturers ,Prices and Comparision – Best Solar Inverter

After Solar Panels,Solar Inverters are the second most crucial component of the overall solar system accounting for around 10% of the overall costs.Solar inverters connect the solar panels to the grid converting the DC to AC which is used by the grid.Note for off grid solar installations,solar inverters are required as most electrical devices need AC for their operation.There are both grid tied and non grid tied inverters available on the market.Solar inverters have become highly sophisticated with features like optimization and monitoring etc.The efficiency of solar inverters are a major factor in their purchase as well as the quality and reliability.Inverters comes in various sizes and can be as large as 1 MW for utility applications.Note unlike solar panels,solar inverter manufactures are much bigger in size with SMA Solar having a 40% global marketshare.
July 5, 2011

Solar Panels Ontario Canada Guide on Cost,Sale,Manufacturers and Rebate (Microfit)

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.
May 10, 2011

Indian Solar Companies see 40% decrease in Solar Electricity Price to Rs 7-10 unit from Rs 14-16/Kwh with Increasing Scale,Improving Technology and Domestic Substitution of Imports

Solar Power in India is set to be one of the biggest energy industries in the 21st century due to a unique set of favorable converging factors with declining cost the biggest one.The Indian government has recognized this fact and set a 20 GW of solar energy capacity target by 2022 and Indian states are boosting solar energy too through their own set of subsidies and solar supportive policies as well.However a number of problems have cropped up in the initial phases as solar electricity price is still high at Rs 14-16 unit compared to the retail electricity price of around Rs 4-5/unit.Though solar subsidies by the government should provide support till the prices come down.Major Indian solar companies like Moser Baer,Lanco are predicting that the solar electricity costs will fall by 40% or more in the next 3-5 years as technology improves,scale increases and more of the components like glass,solar inverters are manufactured domestically substituting expensive imports from countries like China and Taiwan.
April 14, 2011

Micro inverters in Solar – How it works with Solar Panels,Reliability and Monitoring

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 Micro Inverter Market – Small Size but Huge Growth Ahead,Solar Microinverter Companies

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 Central Grid Tie Inverters vs Microinverters – Advantages and Disadvantages

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 – Largest Micro-inverter Company,Enphase Micro-inverter Price,Technology,Products (m190,m210,d380)

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 12, 2011

Solar Inverter in India – Guide to Solar Inverter Manufacturers,Price and Types

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 7, 2011

Solar Carports – How this Fast Growing Solar Product Works ,Solar Carport Structures and Costs,Solar Panel Carport Suppliers,Largest Solar Carports,Charging Electric Vehicles

Solar Carports are a relatively new Solar Energy Product compared to other Solar Products like Solar Heaters and Solar Cooking.Solar Carports are fast catching on as their dual use of protecting,shading a car as well as providing electricity to nearby offices and buildings.It makes use of real estate that would go waste so it provides a lot of value add besides helping in protecting the environment as well.
April 3, 2011

Solar Panel Costs – Understanding Percentage Breakdown of Component,Part Costs for a Solar System

Economically also Solar Panels are starting to approach retail electricity prices in number of places in the world.Large scale solar power plants are already selling power at 10-15c/KwH which is lower than the retail electricity prices in most places.Still competition between solar panel manufacturers,improving technology and scale are making solar panel costs come down at a rapid pace.In fact Solar Panel prices have declined by more than 50% from 2008 end to 2010 and are expected to fall by an average rate of 10% in the coming years as well.However Solar Panels are seldom bought by the customers directly but are rather bought by the solar system installers/contractors.However its a good idea to know about the costs of solar panels and systems that you are paying for and not get fleeced by unscrupulous solar installers.
March 4, 2011

List of Major Solar Inverter Manufacturers – Competition Rising

Solar Inverters are a crucial component of the overall solar system accounting for around 10% of the overall costs.Solar inverters connect the solar panels to the grid converting the DC to AC which is used by the grid.Solar inverters have become highly sophisticated with features like optimization and monitoring etc.The efficiency of solar inverters are a major factor in their purchase as well as the quality and reliability.Inverters comes in various sizes and can be as large as 1 MW for utility applications.Unlike Solar Panels,the Solar Inverter Market is much less crowded though competition is growing as the size of the market increases rapidly.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.Here is a list of the major solar power inverter companies