Rooftop Package Ac and Gas Heating – Supermarket, Idaho

We retrofitted all the rooftop units (RTUs) on a large supermarket and did IMPVP-compliant M&V for both space heating and cooling.  The degree-day normalized results indicated reductions of 17% in kWh consumption and a 34% for natural gas. The customer also received energy-efficiency rebates for both gas and electric conservation from Idaho Power.

Facility

Large Supermarket

Location

Boise, Idaho

Equipment

Roof Top Units, 50-ton chiller and (2) 350-400 kBTU Make Up Air units

Conditions

The chiller had been a part of and controlled by a Danfoss energy management system implemented in a retro-commissioning project.

Savings

IPMVP-compliant M&V was performed for both space heating and cooling.  The degree-day normalized results indicated reductions of 17% in kWh consumption and a 34% for natural gas.

Additional Summary Information

The customer also received energy-efficiency rebates for both gas and electric conservation from Idaho Power.