EPS 7 Lecture Notes - Lecture 34: Wind Turbine, Net Metering, Capacity Factor
21 Jul 2018
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The investment tax credit pays for 30% of the cost of installing solar pv on your roof. My house uses 350 w of electricity, 400 w isn"t enough (it is rated power) Rated power is the out put under idea conditions, e. g. , facing 1000 w/m2 of incoming sunlight. The capacity factor is the ratio of actual power output to rated power output. Actual power = capacity factor x rated power. For solar in california, the capacity factor is roughly 0. 15. Since i need 350 w, the equation above becomes: 350 w = 0. 15 x rated power. Rated power = (350 w)/ 0. 15 = 2300 w, the panel is about 250 w, so i need (2300 w) / (250 w/ panel) = 9 panels. The production tax credit (ptc) provides 2 cents/kwh of electricity generated by a wind turbine in the 10 years since its installation. It is a stupid unit, there are lots of stupid unit.
