Section 35II. There shall be established and set up on the books of the commonwealth a separate fund to be known as the RGGI Auction Trust Fund. The fund shall consist of amounts credited to the fund in accordance with section 22 of chapter 21A and expended exclusively for the purposes of said section 22 of said chapter 21A. The fund shall be administered by the commissioner of energy resources, subject to the approval of the secretary of energy and environmental affairs. The fund shall be an expendable trust fund and shall not be subject to appropriation or allotment. The commissioner shall report monthly by source all amounts credited to the fund and all expenditures by subsidiary made from the fund on the Massachusetts management and accounting reporting system. Amounts remaining in the fund at the end of a fiscal year shall not revert to the General Fund and shall be available for expenditure in the next fiscal year and thereafter.