Commercial Case Studies

Small Business

Backpackers Hostel, North Shore O’ahu

In summer 2015, Pono Home installed energy and water-saving fixtures at a vacation hostel on the North Shore of Oahu. Six months later, we evaluated the results from those installations and found the following results:

  • 13 month average monthly energy usage reduction: 490 kWh

  • 13 month average water usage reduction: 21,000 gallons

  • Same month energy reduction: 1300 kWh

  • Same month water reduction: 19,000 gallons

  • Estimated annualized savings: $2,950

  • Estimated annual carbon emission reduction:

  • Payback period: 4.6 months

  • One year return on investment: 61%

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Retirement Communities

Catholic Charities

In spring 2015, Pono Home installed efficiency hardware and maintained large appliances at a 10 bedroom, 5 bath low-income senior living duplex in Kalihi, Hawaii, with the following results:

  • 19 month average monthly energy usage reduction: 117 kWh, 10.29%

  • 19 month average water usage reduction: 2,700 gallons, 18.01%

  • Same month energy reductions: 168.9 kWh

  • Same month water reduction: 3,000 gallons

  • Estimated annualized savings: $717.41

  • Estimated annual carbon emission reduction: 2,456.69 pounds of CO2 equivalents

  • Payback period: 3.7 months

  • One year return on investment: 69.33%

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Low-income Housing

In spring 2016, Pono Home completed a free home efficiency pilot program for renters and low-income families in partnership with Hawaii Energy.

12,572 home efficiency products were directly installed into 579 homes on the islands of O’ahu and Maui in this program, resulting in a statewide reduction of 485,548 kWh/year and an average estimated savings of $167,514.206 or $289 per home annually.

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Schools

In summer 2016, Pono Home completed a pilot program at a Hawaii Department of Education elementary school on Oahu, which included education, survey research, and electronic hardware installations (timers and advanced power strips).

  • 6 advanced power strips were installed, which will save an estimated 616.8 kWh per year or $195.96

  • 2 PowerDown timers installed on water coolers, which will save an estimated 1576 kWh per year, or $500.70

  • 51 9 watt (60 watt equivalent) LED lamps were delivered to teachers to use at home or in the classroom, and if they are used similar to a residential setting, will save 5472.74 kWh or $1738.69 per year

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