Solar Water Heating - Business


Go solar, Arizona, and save money in the long-run. There isn’t a more abundant energy source than the sun, and when you install a solar water heating system with natural gas back-up, you’re benefitting from a cleaner and greener water heating system. You can take advantage of big savings with rebates on qualifying solar water heating systems for your business today!

  • Reduce the cost of heating water in half
  • Generate hot water for your home and business in a cost-effective way
  • Can be used in any climate
  • Reduce hot water operating costs up to 90% by using the sun's energy AZ Commercial Solar Funding Level
Program Rebate Amount Equipment Requirements
Residential Solar Water Heating System $11.50/therm up to $2,000 or 40% of installed cost Collectors must be OG-100 certified.
Commercial Solar Water Heating System $11.50/therm up to $20,000 or 40% of installed cost Collectors must be OG-100 certified.
Commercial Solar Pool Heating System $11.50/therm up to $20,000 or 40% of installed cost Collectors must be OG-100 certified.

Systems must be installed by a program qualified contractor. For a list of qualified contractors, click on the Contractor List link in the Related Resources section. To become a Qualified Contractor, please submit a completed Qualified Contractor Application.


Please review the rebate application requirements and full terms and conditions.

Rebates are available until program funds are no longer available. Rebate applications will be processed on a first-come, first-served basis 

  • Residential systems – Due to limited funding, please submit your rebate application as soon as possible after purchase and installation. Residential systems must be purchased and installed before submitting a rebate application.
  • Commercial systems – Pre-approval is required. Please submit your rebate reservation before purchase and installation.

*Program participation dates are subject to funding availability and may change without notice. Program and submission deadline dates will be updated on

This program is funded by Southwest Gas Corporation's Arizona customers and administered by Southwest Gas Corporation. This program has been reviewed and approved by the Arizona Corporation Commission. This program may be modified or terminated without prior notice and is provided to qualified customers on a first-come, first-served basis until program funds are no longer available. Eligibility requirements also apply. Southwest Gas Corporation does not make any warranty, express or implied, or assume responsibility for the accuracy, completeness, or usefulness of any information, estimated savings, and benefits attributed to the products that qualify for this program. Reference to any specific product, project, or service by manufacturer, trade name, trademark, or otherwise does not constitute or imply its endorsement, recommendation, or favoring by Southwest Gas Corporation. To qualify, equipment must meet technical requirements and be installed according to local building codes and ordinances and/or manufacturer's requirements. If you have questions call 800-654-2765 to confirm eligibility before purchasing products.

Related Resources


Need More Info? Download our current rebates brochure or find a printable application you can send in by mail.  You can also call an Energy Specialist at 1-800-654-2765.