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Solar and Wind Are the Cheapest Sources of New Generation in Major Economies
On November 8, Lazard released the latest edition of its Levelized Cost of Energy (LCOE 12.0) analysis. The analysis reviews various generation technologies on a $/MWh basis, including sensitivities for U.S. federal tax subsidies, fuel prices, and cost of capital. Notably:
- The mean LCOE of utility-scale solar PV technologies has declined approximately 13 percent from last year;
- The mean LCOE of onshore wind has declined nearly 7 percent from last year;
- In some cases, alternative energy costs have decreased to the point that they are now at or below the marginal cost of conventional generation:
- The low-end levelized cost of onshore wind energy is $29/MWh, $7 lower than the average marginal cost to operate a fully depreciated coal plant: $36/MWh
- The low-end levelized cost of utility-scale solar energy (PV thin-film) is nearly identical to the average marginal cost of coal: both are $36/MWh.
Bloomberg New Energy Finance (BNEF) conducts a similar levelized cost of energy analysis on a biannual basis. Their latest 2H 2018 LCOE update states that unsubsidized solar and onshore wind are now the cheapest source of new bulk power in all major economies except for Japan.
BNEF predicts that by 2030, the cost of new coal and gas plants will remain relatively unchanged; however, the cost of new utility-scale solar PV will drop by 41 percent and the cost of onshore wind will be reduced by 25 percent.
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