Veteran’s Administration Medical Center, Battle Creek, MI
The VA Battle Creek built a wood chip fueled high pressure steam boiler to turn a turbine a produce about 2 mW of electricity. Excess steam is used for heat, reducing natural consumption by about 60 percent. The facility has about 35 buildings, about a million square feet, located on a 206 acre campus. The CHP system was commissioned in 2015.
Pinecrest Medical Care Facility, Bark River, MI
Pinecrest is located in Powers, Michigan, in northern Menominee County in the south central part of the Upper Peninsula. The facility offers medical care, Alzheimer’s care, physical, occupational and speech therapy, and can house up to 160 residents. There are 170,000 square feet in four buildings that are both heated and cooled using a low-pressure steam district energy (DE) system fueled primarily by wood chips. Cooling is provided by a Trane absorption chiller, which runs water at 42 degrees Fahrenheit. The system also provides domestic hot water, high-temperature hot water (e.g. dishwashing), and hot water for the laundry. There are two natural gas backup boilers. Pinecrest also has a 10 kw solar panel array connected to the grid that was funded by the Michigan Energy Office.
The Mariner North Restaurant, Copper Harbor, MI
The Mariner North is located in downtown Copper Harbor, a small town near the tip of the Keweenaw Peninsula. Six buildings are heated with hot water from a 250,000 btu, water-jacketed Central Boiler. About 40 cords of wood are used during the extended cold season. Alternative heating is either with propane or fuel oil, as the natural gas grid does not reach Copper Harbor.
The case in the state of Upper Austria
Upper Austria, a state in northern Austria, has a well-developed, wood-based heating sector, including home-based automatic pellet boilers, micro-grids and other district energy installations, and CHP facilities that use wood. This model has been very successful and serves as a good example of what can potentially be built in Michigan.
Schools: Several case studies demonstrate cost-savings and other benefits
Mid-Peninsula School has burned wood chips since 1984 and have had upgrades to the original system. The North Central Schools installed their first wood chip systems in the early 1980s and replaced the boiler in 2014. North Central has access to natural gas but burns wood. North Dickinson County School installed their wood system in 1991. The Republic-Michigamme Schools burned fuel oil prior to 2012. The savings obtained by the conversion to wood chips has been well-accepted in the communities and the school loves it. These schools each heat roughly 50,000-100,000 square feet, as well as domestic hot water. Different suppliers deliver the wood chips. All of the schools save enough money (over fossil fuel consumption) to pay approximately the cost of a teacher, which is significant to these small rural schools.
Messersmith Manufacturing, Inc. - Bark River, MI
Messersmith is one of the nation’s leading manufacturers of wood chip heating systems. Engineer and CAD technician designs include the chip bins, augers and conveyors, chip sorters, combustion chambers, emissions control, and other components to suit the requirements of each particular project.
Minnesota woody biomass case studies
Dovetail Partners, in cooperation with other groups, has prepared several examples of how wood-based energy has been deployed. These serve as models for different applications.
Wisconsin woody biomass case studies
The Wisconsin Statewide Wood Energy team has also built a set of case studies to complement what is being done elsewhere in the upper Great Lakes Region.
Case studies from BTEC
These BTEC resources cover a large variety of sites across the USA.
About the Michigan Wood Energy Team
The Michigan Wood Energy Team assesses Michigan’s woody biomass supplies, energy infrastructure, and community readiness related to wood energy. We also provide educational resources related to the use of wood energy in Michigan, and provide supporting materials for the installation of demonstration systems for wood energy combined heat and power or district heating and cooling systems at the institutional or small community scale. Learn more about our mission and our members.