The cost of high-efficiency solar panels fell 37% in 2017

February 22, 2018 by  
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In 2017, the price for high-efficiency solar panels dropped from 72¢/W to 45¢/W, representing a 37 percent decline in cost. The falling price point is driven by several factors, including American consumer demand for higher solar efficiency to compensate for the higher-than-average energy consumption of the average American, as well as Chinese state investment in high-efficiency solar panel production. The shift is also a result of technological change as poly crystalline solar panels switch to mono crystalline, which are at least 10 percent more efficient while only 6 percent more expensive. Meanwhile, the price continues to drop. The primary difference between mono and poly solar panels is the structure by which silicon is shaped and molded into the panel. In mono crystalline solar panels, silicon is formed into bars, then cut into wafers, whereas poly crystalline solar panels are melted together to form wafers. The process to create mono solar panels was invented in 1918. As a result, the earliest solar panels were of the mono crystalline design. However, during an oil crisis-induced burst of solar energy research in the 1970s, an Exxon researcher discovered that poly panels could be manufactured more cheaply. Related: All-female high school team invents solar-powered tent for homeless As we are seeing in the greater efficiency and steady decline in cost for mono panels as of late, the cheap manufacturing of poly had its own hidden costs. As 2018 rolls along, some analysts are predicting that this may be the year in which mono crystalline solar panels make up the majority of solar panels manufactured worldwide. The rapidly declining cost of solar energy , even in the face of resistance by the United States government , demonstrates the possibility that a rapid transition to renewable energy may not be as far-fetched as current reality may make it seem. Via Electrek Images via Depositphotos and EIA

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The cost of high-efficiency solar panels fell 37% in 2017

Abundant solar threatens fossil fuel companies in Texas to the tune of $1.4 billion

January 19, 2018 by  
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In Texas, demand for power peaks in the summer, which also happens to be when solar power is at its most productive. With the state slated to add up to 15 gigawatts of solar in the next few years, it spells big trouble for companies peddling fossil fuels – a $1.4 billion problem. Hear that tapping sound? It’s another nail being hammered in the coffin for fossil fuels . The state’s solar boom could wipe out $2.76 per megawatt hour (wholesale) during the summer from fossil fuels, according to Bloomberg . Since gas and coal power generators rely on high summer prices to counteract the winter dip in demand, solar’s proliferation is a double-whammy threat to the industry. Related: Tesla’s new Solar Roof is actually cheaper than a normal roof Texas isn’t the only state to face this “problem.” California’s fossil fuel prices regularly dip into the negative during summer hours. The good news for fossil fuels is that this shift won’t happen right away. Texas will likely only have 1.8 gigawatts of solar power within the next two years. Via Bloomberg Images via Deposit Photos ( 1 , 2 )

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Abundant solar threatens fossil fuel companies in Texas to the tune of $1.4 billion

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