Report/Case Study
Task tuning is one form of lighting control that can be used in commercial buildings to save energy. It involves dimming lights in a space so that the average illuminance at the working plane is appropriate for the type of use in that space.
Task tuning has the potential to save energy without decreasing occupant satisfaction because most commercial spaces, for a variety of reasons, are over lit. With more widespread adoption of dimmable ballasts and LED lighting there are more opportunities to apply this relatively simple-to-implement efficiency measure. More
Report/Case Study
Demand control ventilation (DCV) systems use sensors—generally either CO2 or occupancy sensors—to estimate the actual number of people in an area and supply only as much ventilation air as is needed at a given time. DCV has the potential to save a substantial portion of building energy use in extreme climates like Minnesota and other areas of the northern U.S. More
Paper
This white paper outlines the optimal control strategies for designing and operating air-source VRF systems in cold climates.
Report number: 275-1
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Fact Sheet/Guide
Grocery stores use a significant amount of refrigerated equipment including display cases, walk-in coolers and walk-in freezers. This refrigeration equipment accounts for roughly 60 percent of grocery store electricity consumption. Due to this high electric demand, a typical grocery store’s average energy costs are higher than almost all other building types at $4.00 per square foot (Bendewald, 2013).
There are several technologies that can be applied to refrigerated display cases to improve their energy performance. These include: More
Report/Case Study
Minnesota Power is a winter peaking investor-owned electric utility with ~145,000 customers in its ~26,000 square mile service territory that covers central and northeastern Minnesota. The utility's Smart Grid Investment Grant (SGIG) project includes a two-phase consumer behavior study.
The first (Phase One) evaluates customer acceptance to various forms and timing of information feedback about electricity consumption, while the second (Phase Two) evaluates customer response to a TOU rate with a CPP overlay. More
Report/Case Study
Minnesota Power is a winter peaking investor-owned electric utility with ~145,000 customers in its ~26,000 square mile service territory that covers central and northeastern Minnesota.
The utility's Smart Grid Investment Grant (SGIG) project includes a two-phase consumer behavior study. The first (Phase One) evaluates customer acceptance to various forms and timing of information feedback about electricity consumption, while the second (Phase Two) evaluates customer response to a TOU rate with a CPP overlay. More