The department, in consultation with the commission, shall recover all of the costs it incurs pursuant to this chapter from the Department of Water Resources Electricity Supply Reliability Reserve Fund established pursuant to Section 80720. The department and its customers shall not bear any of the costs associated with carrying out the purposes of Chapter 8.9 (commencing with Section 25790) of Division 15 of the Public Resources Code, and those costs shall not be included in the prices, rates, and charges for water and electricity under the water supply contracts executed pursuant to Chapter 8 (commencing with Section 12930) of Part 6 of Division 6.