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In the United States, FIT policies guarantee that eligible renewable generators will have their electricity purchased by their utility. [11] The FIT contract contains a guaranteed period of time (usually 15–20 years) that payments in dollars per kilowatt hour ($/kWh) will be made for the full output of the system.
The cost of a solar PV module make up the largest part of the total investment costs. As per the recent analysis of Solar Power Generation Costs in Japan 2021, module unit prices fell sharply. In 2018, the average price was close to 60,000 yen/kW, but by 2021 it is estimated at 30,000 yen/kW, so cost is reduced by almost half.
The law forced electric utilities to buy power from other more efficient producers, such as cogeneration plants, if that cost was less than the utility's own "avoided cost" rate to the consumer; the avoided cost rate was the additional costs that the electric utility would incur if it generated the required power itself, or if available, could ...
The levelized cost of electricity (LCOE) is the average cost in currency per energy unit, for example, EUR per kilowatt-hour or AUD per megawatt-hour. [5] The LCOE is an estimation of the cost of production of energy, thus it tells nothing about the price for consumers and is most meaningful from the investor’s point of view.
If this system costs $5,000 to install ($5 per watt), very conservative compared to worldwide prices, the LCOE = 5,000/29,675 ~= 17 cents per kWh. This is lower than the average Japanese residential rate of ~19.5 cents, which means that, in this simple case which skips the necessary time value of money calculation, PV had reached grid parity ...
Similarly, while the LWC includes audio and video equipment as a basic need, it makes no distinction between a basic $200 television and a home theater system costing thousands of dollars.
Though an oversimplification, most revenue requirements are translated into a rate per unit of commodity used by a customer. In electric utilities, the unit is typically a kilowatt hour, or "kWh"; for natural gas, the unit is typically ten British Thermal Units, called a dekatherm, or "dkt"; in water utilities, the unit is typically a gallon.
From there, you can use the U.S. Department of Energy's number for the average U.S. utility rate of $0.14 per kWh, or you could get more specific and get your rate straight from your energy provider.