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 cost of high-efficiency solar panels fell 37 percent in 2017
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