Here Comes the Sun - The Chart Paul Krugman Left Out | john-farrell-ilsr - 0 views
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rid electricity prices are not fixed, but changing. Over the past decade, electricity prices have risen, on average across the United States, 3 percent per year. The solar electricity price is locked in once the panels are operating. Some utilities have time-of-use rates that charge more for electricity during peak times (hot, summer afternoons) that rise as high as 30 cents per kWh. Solar competes favorably against these rates. There are federal, state and utility incentives for solar that reduce the cost. The 30% federal tax credit, for example, is in statute until the end of 2016.
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The first step is translating solar prices into electricity prices. Installed costs for solar have dropped dramatically, from $8 to $10 per Watt just a few years ago to as low as $3.50 per Watt for utility-scale systems as just over $4 per Watt for residential systems. But electricity isn't sold in Watts, but in kilowatt-hours (kWh). So, solar installed at $3.50 per Watt in Minneapolis, MN, will produce electricity for about 23 cents per kWh. In sunny Los Angeles, the same solar PV array would produce power at 19 cents per kWh, because the more abundant and direct sunshine would make 20% more solar electricity over the same time period.
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by the time their solar PV systems are halfway to their expected life of 25 years, 45 million Americans (roughly 1 in 6) would have cheaper electricity from solar if they installed right now at $3.50 per Watt.
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The first step is translating solar prices into electricity prices. Installed costs for solar have dropped dramatically, from $8 to $10 per Watt just a few years ago to as low as $3.50 per Watt for utility-scale systems as just over $4 per Watt for residential systems. But electricity isn't sold in Watts, but in kilowatt-hours (kWh). So, solar installed at $3.50 per Watt in Minneapolis, MN, will produce electricity for about 23 cents per kWh. In sunny Los Angeles, the same solar PV array would produce power at 19 cents per kWh, because the more abundant and direct sunshine would make 20% more solar electricity over the same time period.