This state-of-the-art science facility demonstrates, through its curriculum and its design, the College’s commitment to sustainability and environmental education. Green science practices make it possible to decrease ventilation significantly, and a wide range of conservation strategies reduces the energy loads further, with a campus wind energy system more than offsetting the remaining electric load. The Weidt Group provided sustainable design and daylighting consulting as well as Energy Design Assistance/analysis to find the most cost-effective solution.

Energy Conservation Design Strategies

• Outside air control and reduction based on need
  • Lab hoods reduced 36% for green science curriculum
  • Fresh air for lab hoods routed through nearby offices
  • Heat recovery from exhaust air
  • Low flow variable volume lab hoods with shut-off capability
  • Static pressure reset on variable frequency supply/return fans
• Lighting and lighting controls strategies
  • Occupancy sensors and other lighting controls in most spaces
  • Automated stepped daylighting controls
  • Efficient lighting design
  • Fan and pump motor efficiency upgrades & load responsive operation
• High efficiency chiller
• High performance glazing and insulation systems

Energy Savings Results

• 60% annual energy cost savings (MN Code baseline) with two year payback after utility incentives, not counting the wind system
• 35% annual savings compared to LEED (ASHRAE 90.1-2004 baseline)