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On Tuesday, the Department of Energy (DOE) announced that utility-grade solar panels have hit cost targets set for 2020, three years ahead of schedule. Those targets reflect around $1 per watt and 6¢ per kilowatt-hour in Kansas City, the department's mid-range yardstick for solar panel cost per unit of energy produced (New York is considered the high-cost end, and Phoenix, Arizona, which has much more sunlight than most other major cities in the country, reflects the low-cost end).
Those prices don't include an Investment Tax Credit (ITC), which makes solar panels even cheaper. The Energy Department said that the cost per watt was assessed in terms of total installed system costs for developers. That means the number is based on "the sales price paid to the installer; therefore, it includes profit in the cost of the hardware," according to a department presentation (PDF).
The National Renewable Energy Laboratory (NREL), a DOE-funded lab that assesses solar panel cost, wrote that, compared to the first quarter in 2016, the first quarter in 2017 saw a 29-percent decline in installed cost for utility-scale solar, which was attributed to lower photovoltaic module and inverter prices, better panel efficiency, and reduced labor costs. Despite the plummeting costs for utility-scale solar, costs for commercial and residential solar panels have not fallen quite as quickly—just 15 percent and 6 percent, respectively.
It seems there are still big gains to be made in the installed costs of residential panels.
(Score: 1, Touché) by Anonymous Coward on Friday September 15 2017, @02:06PM
Of course some people don't want to hear it at all, but... until we get a lot more solar out there, the grid does need electricity on clear summer days when solar panels produce the most, because air conditioning is a big part of the load. When power companies carry on like it's a problem now, rather than a problem coming up in 5-10 years, that is BS propaganda, and their real problem is (currrently) not with grid-tied solar as such, but with the way net metering cuts into their profits.