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First Solar, Inc. Message Board

  • bluecheese4u bluecheese4u Jun 19, 2013 9:06 AM Flag

    Forecast: Cost Of PV Panels To Drop To $0.36/Watt By 2017

    Forecast: Cost Of PV Panels To Drop To $0.36/Watt By 2017

    June 19, 2013 Nicholas Brown

    The cost of photovoltaic solar panels is expected to drop another 36 cents per watt by 2017, according to new research by cleantech market research firm GTM Research.

    While this drop in solar panel prices will help to make solar affordable to more people, which will increase the size of the solar market, this ongoing cost reduction means much more than that.

    Currently, solar panels are backed up by natural gas and various other types of power plants on the electricity grid. However, solar panel costs of $0.36 per watt make it more feasible to install additional solar panels to back each other up instead of using any other type of power plant (for off-grid setups), reducing the need for batteries.

    For example: If you need 1,000 watts of power, and your 1,000 watt solar panel generates only generates 50% of its capacity (500 watts) due to cloudy weather, that can be compensated for by using two of those 1,000 watt panels instead of one, so you could still draw 1,000 watts from that 2,000 watt (nameplate capacity) array.

    As long as the solar panel array is generating more current than is being drawn from it, there is no power disruption or power fluctuation (provided that voltage regulation is used).

    Each 1,000 watt panel would cost $360 without factoring in installation costs, but they would last about 6 times longer than batteries.

    Assuming the batteries required are charged at their recommended rate, they would end up costing $1,980 and they would have to be replaced more frequently than the extra solar panel — plus, there is an installation fee for the batteries as well, except for DIY people.

    Suddenly, that $360 sounds good. Even after factoring in the fees required to install that extra panel, it is likely still much cheaper than expe

 
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