Landfill Gas-to-Energy Project

IMEG provided mechanical, electrical, plumbing and structural engineering for a new 4.8 MW landfill gas-to-energy plant located in eastern Wisconsin. The project supports the state’s renewable energy goals and will help reduce greenhouse gas emissions.

The process, mechanical systems, and structure were all drawn in Revit. IMEG coordinated the interconnection with the utility company to feed the renewable energy onto the grid.

The 4.8 MW electrical generation facility includes three landfill reciprocating engine generator sets with a capacity of 1.6MW each, fueled exclusively by the landfill gas. Normally burned off, the landfill gas is captured and sent via the landfill’s existing gas collection system to the facility, where it will be converted to electricity. All power generated by the plant will be sold to the local utility. The system generates enough clean electricity to power 2,800 homes.

IMEG provided infrastructure coordination and electrical interconnection for the landfill gas to energy distributed generation facility. The electrical interconnection took  place between WPS Wisconsin Public Service utility, CAT Generator sets, paralleling switchgear, balance of plant motor control center, and the gas compression skid and control panel.

The distributed generation facility converted landfill gas to electrical energy and exported it back onto the utility grid at 25kV via a 6 MVA step-up transformer.

IMEG also provided electrical engineering services for the balance of plant design as well. This consisted of a separate electrical service, extensive grounding system, lightning protection, lighting design, fire alarm system, and remaining power design for the Plant’s systems.

IMEG provided energy modeling of the HVAC system. The project is LEED Silver certified.