The Cost of Renewable Power: A Survey of Recent Estimates - Green Energy and Efficiency: An Economic Perspective - page 262

(6) the value assigned to the average cost of capital, or WACC, is more relevant in
the case of renewable energies, since capital costs are the largest fraction of all costs
and therefore have a strong impact on the calculated value for LCOE. A common
value assumed in many reports is 10 % [ 18 , 29 , 41 ]; (7) whether the cost is
measured from the point of view of a producer-investor or a consumer is another
relevant point. In the latter case the price paid by consumers may be as much as four
times higher than the price obtained by an investor who sells directly to the grid.
Note also in passing that this distinction is also crucial when discussing the concept
of

' grid-parity ' .

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