Solar Heating & Cooling - Case Study

www.seia.org/shc April 2018

Larkspur Commons | Bozeman, Montana

System Information Location: Bozeman, Montana, USA

Application: Domestic Hot Water

Rated Power Output: 212.8 kWth total

Yearly Energy Output: 138,000 kWhth total

Yearly CO2 Reduction: 25,132 kg / 55,291 lbs

Solar Collectors: 80 x SunEarth EC40

Storage Capacity: 3,456 gal total, 216 per system

Multiple of the 5-collector foor-top arrays

Introduction Bozeman has more than 200 sunny days per year. The owners of Larkspur Commons are committed to using renewable energy systems on projects across Montana. Solar saves tenants money on utility bills, reduces operating costs for owners, and lowers our reliance on fossil fuels.

System Description Larkspur Commons has 136 units ranging from 1-3 bedrooms that are rented out to families earning less than 50-60% of the area’s median income. To help keep utility costs low, the development features a 4,000 square foot solar hot water system comprised of 16 solar thermal systems (the largest in the state of Montana!) using SunEarth EC-40 Collectors, each with 216 gallons of storage and installed by our friends at Liquid Solar Systems. At present, the system is meeting 60% to 75% of annual hot water load.

Contact Information SunEarth | www.SunEarthInc.com

Liquid Solar Systems | LiquidSolarSystems.com

Two of the 16 solar hot water systems, each with 5 collectors