Arizona Public Service

Phoenix, Arizona

Partner of the Year - Energy Efficiency Program Delivery


Arizona Public Service (APS) is an electric utility serving central Arizona. Over the past year, APS continued to promote energy efficiency through ENERGY STAR® with offerings across multiple program areas, while managing demand and reducing lifetime carbon dioxide emissions by 2.3 billion pounds. Key 2021 accomplishments include:

  • Developing a customer-centric strategy to deliver 100% clean, carbon-free electricity by 2050 through load shifting, energy storage, beneficial electrification, and consumer tools.
  • Supporting the construction of more than 6,000 certified homes and achieving a 45% market share for ENERGY STAR single-family homes across its service territory.
  • Designing an initiative for Home Performance with ENERGY STAR® (HPwES) contractors to install free smart thermostats pre-programmed to align with time-of-use rates, reducing residential energy use during peak demand and enhancing opportunities for contractors to engage with customers.
  • Increasing participation in the HPwES program by identifying likely candidates for deep retrofits, based on high air conditioning use in the summer and costly heating bills in the winter.
  • Incentivizing the purchase of about 40,000 ENERGY STAR certified smart thermostats and pre-enrolling 97% of customers in its Cool Rewards demand response program, which operates as a virtual power plant and provides more than 80 megawatts of flexible clean capacity in its fourth year of operation.
In 2020 alone, ENERGY STAR and its partners helped Americans avoid more than $40 Billion in energy costs

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