Covanta SEMASS Biomass Power Plant is an 80MW biopower project. It is located in Massachusetts, the US. The project is currently active. It has been developed in multiple phases. Post completion of construction, the project got commissioned in February 1989.

Project Type Total Capacity (MW) Active Capacity (MW) Pipeline Capacity (MW) Project Status Project Location Project Developer
Biopower 80 80 Active Massachusetts, the US Bechtel Power


The project was developed by Bechtel Power and is currently owned by Covanta Energy Group.

The project generates 780GWh electricity and supplies enough clean energy to power 75,000 households.

The process of combustion has been adopted in this project to release the stored energy from the feed. Refuse which is a kind of municipal solid waste is used as a feedstock to power the project.

Development Status

The project got commissioned in February 1989.

Contractors Involved

GE Power was selected as the steam turbine supplier for the project. The company provided 1 turbine with 30MW nameplate capacity.

GE Power was selected as the steam turbine supplier for the project. The company provided 1 turbine with 54MW nameplate capacity.

Riley Power supplied steam boiler for the project. The temperature witnessed inside the boiler is around 750Degree Fahrenheit.

About Bechtel Power

Bechtel Power Corp (Bechtel Power), a part of Bechtel Corp, is a provider of integrated engineering, procurement and construction services. It designs, procures and constructs the power-generation, environmental services, communicationsy, retrofit projects, power transmission lines, substations and distribution facilities. The company builds a varied range of power plants that generate electricity using thermal, nuclear, and renewable power sources such as integrated gasification combined-cycle, hydro, solar, biomass and waste-to-energy. Bechtel Power also carries out plant completion or recovery and modifications to existing facilities. It has operations in the US and other countries. Bechtel Power is headquartered in Reston, Virginia, the US.


All power projects included in this report are drawn from GlobalData’s Power Intelligence Center. The information regarding the project parameters is sourced through secondary information sources such as electric utilities, equipment manufacturers, developers, project proponent’s – news, deals and financial reporting, regulatory body, associations, government planning reports and publications. Wherever needed the information is further validated through primary from various stakeholders across the power value chain and professionals from leading players within the power sector.