Hyperion Bioenergy Facility

The Hyperion Bioenergy Facility will convert 7.5 million cubic feet of digester gas produced at Hyperion Water Reclamation Plant to electricity and steam which will be used to meet the plant's power and heating the demands, moving the plant toward full sustainability with this renewable energy source and reducing the carbon footprint.

A groundbreaking celebration took place on November 17, 2015. Installation, testing, and operation of cogeneration equipment and appurtenant emissions control systems is underway. The project is scheduled to be completed by the end of 2016.

Project Vision

The vision of the Hyperion Bioenergy Facility is reduce environmental impacts, reduce the plant's carbon footprint, create renewable energy, conserve resources and strengthen environmental sustainability, and ultimately supporting the City and LASAN's commitment to environmental responsibility.

Project Mission

The mission of the Hyperion Bioenergy Facility is to help meet the electric and thermal needs of the Hyperion Water Reclamation Plant (HWRP), improve the overall energy generation efficiency through steam production, reduce the environmental impacts of power and steam generation, and utilize HWRP's digester gas as a renewable energy source.
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.
HTP night

Energy Needs of Hyperion

The Hyperion Bioenergy Facility is a combined cycle, cogeneration configuration that is widely used for power generation projects. The combination of the Rankine and Brayton thermodynamic cycles is a proven process. The Project will be engineered, designed and fitted to use the full amount of Hyperion Water Reclamation Plant (HWRP) digester gas in a manner that is intended to meet the electric power and steam needs of the HWRP, as well as the new air emissions permit requirements for the Project.

The Project will produce the required amount of electric power and steam to serve the current needs of the HWRP and use all of the currently available digester gas. It is based on the installation of two new Solar Mars 100-16000 Combustion Turbine Generators (CTG's) built and packaged by Solar Turbines.

Each CTG has a nominal 11.35 MW power output as measured at the generator terminals at ISO conditions. Each CTG is provided with a dedicated heat recovery steam generator (HRSG). A single extraction/condensing steam turbine generator (STG) unit is provided to produce additional electric power from HRSG steam and to supply lower pressure steam for HWRP use through a STG extraction port. These prime movers will be complemented by a complete set of Balance of Plant (BOP) systems and equipment. This arrangement would allow the Project to follow the HWRP steam demand and use all remaining steam for additional electric power production.

The Project will consist of the following major systems:

  • CTG systems
  • Fuel conditioning and compression systems
  • Siloxane removal systems
  • HRSG systems
  • STG systems
  • BOP sytems
  • Electrical systems
  • Plant control systems
The City is anticipating that future additions will be made to the HWRP to further treat incoming Fats, Oils, and Grease (FOG). These modifications are expected to significantly increase the amount of HWRP digester gas available, and increase the HWRP demand for electric power and steam.

To accommodate the additional digester gas flow and address these additional demands, the Project is engineered, designed and constructed to accomodate the future installation of a third 11.35 MW CTG/HRSG train and a one MW backpressure STG and ancillaries (not included in this project) to allow the consumption of the additional digester gas and produce the necessary additional electric power and steam for the HWRP.