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Company details how qualifying facilities’ capacity replaces proxy resources and why avoided megawatts differ
Summary
Rocky Mountain Power explained at the technical conference that the Schedule 37 avoided‑cost method displaces a proxy resource by an amount equal to a QF's measured capacity contribution; differences in capacity contribution between locations and technologies produce non‑linear MW equivalencies.
Rocky Mountain Power told the commission that, under the partial displacement differential revenue requirement (PDDRR) used in the Schedule 37 methodology, the company compares a QF's capacity contribution to the contribution of a like‑for‑like proxy resource in the preferred portfolio and displaces the proxy by the equivalent capacity contribution.
As Dan McPhail described it: "We displace a capacity contribution equivalent amount of a proxy…
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