The digesters at the Hyperion Water Reclamation Plant (HWRP) currently produce digester gas that is fired as a supplemental fuel in boilers No. 1 and 2 at the neighboring LADWP Scattergood Station (SGS) or flared at HTP. Steam produced at the SGP is supplied to the HWRP for use as process steam. An agreement for supply of digester gas to the SGP has been in place since 1995 and is scheduled to expire in December 31, 2016. The SGP boilers, which are currently utilizing the HWRP-generated digester gas, are scheduled to be replaced with a new Combined Cycle Generation Facility as a part of a long-term re-powering plan; when completed the HWRP-generated digester gas will no longer be consumed at SGP.
When implemented, the Project will be provide a new combined cycle cogeneration facility dedicated to HWRP to help meet its electric and thermal needs, improve the overall energy generation efficiency through steam production, reduce the environmental impacts of power and steam generation, and utilize HWRP's digester gas for renewable energy generation.