Arizona Electricity Rates Are Rising: How Solar Protects Phoenix Valley Homeowners

If your APS or SRP bill has felt heavier every summer for the past several years, you are not imagining it. Arizona Public Service filed a rate case in 2025 seeking a residential rate increase of nearly 14 percent, and Salt River Project raised its rates in November 2025. With over 125 data centers now operating in Maricopa County putting unprecedented demand on the regional grid, there is no credible forecast that suggests utility rates will stabilize anytime soon. For homeowners in Goodyear, Sun City West, Scottsdale, Surprise, Fountain Hills, Sun City, and Sun Lakes, the financial math on solar has never been more compelling.

Phoenix Valley Solar is an independent solar broker working exclusively for Maricopa County homeowners. We compare multiple licensed installers and financing options to find you the best deal, including the prepaid solar lease with a 30 percent discount that allows you to lock in energy savings immediately without a large cash outlay. Learn more about how we work on our About page, or use our free solar savings calculator to see exactly how much rising APS and SRP rates are costing you.

Why Arizona Electricity Rates Keep Rising

Arizona sits at the intersection of several forces that are structurally driving electricity costs higher. Population growth in Maricopa County, which added over 56,000 new residents in 2024 alone, continues to strain existing grid infrastructure. The rapid buildout of data centers across the East and West Valley, fueled by AI and cloud computing demand, has added thousands of megawatts of new industrial load to a grid that was not designed to support it. Meanwhile, aging transmission infrastructure requires billions in upgrades that utilities pass directly to ratepayers.

APS has raised residential rates multiple times since 2017. The 14 percent rate hike request filed in 2025 is one of the largest in the utility's history. Even if the Arizona Corporation Commission approves a smaller increase, the direction is clear. Homeowners who lock in their energy costs today through solar effectively insulate themselves from every future rate decision made by APS or SRP.

How Solar Locks In Your Energy Costs Against Rate Increases

When your solar system is generating electricity from your roof, every kilowatt hour it produces is one you did not have to buy from APS or SRP. The effective cost of that solar electricity is fixed at the time you install, either through the price you paid for the system or the terms of your prepaid lease. Future rate increases by your utility raise the value of your solar production retroactively, meaning your savings grow automatically every time the utility raises its rates.

This is one of the most powerful financial characteristics of residential solar that is often underappreciated. It is not just a one-time saving. It is a permanent hedge. Every rate increase that APS or SRP implements after your system is live actually improves your return on investment because the electricity you are producing is now worth more than it was when you installed. Over a 25-year system lifespan with continued modest rate growth, the cumulative value of this protection can easily exceed $60,000 to $100,000 for a typical Phoenix Valley household.

What the Prepaid Solar Lease Means for Rate Protection

The prepaid solar lease with a 30 percent discount is the most effective way for most Phoenix Valley homeowners to immediately lock in rate protection without taking on the full complexity of system ownership. You pay upfront at a discount, the solar company installs and maintains the system, and you start saving on your APS or SRP bill from day one. There is no separate loan payment, no maintenance worry, and the cost is fixed from the moment you sign.

Phoenix Valley Solar passes the commercial Investment Tax Credit savings directly to homeowners in the form of this 30 percent discount, a structure not available through most direct installers. For homeowners in Sun City West, Sun City, and Sun Lakes who are on fixed retirement incomes and most exposed to rate risk, this is particularly powerful. Your energy costs do not increase because your utility decides to raise rates. For more detail on how the prepaid lease compares to buying solar outright, see our post on solar lease vs buying solar in Arizona.

City-by-City: How Rising Rates Hit Phoenix Valley Homeowners

In Goodyear, where newer construction homes often exceed 2,500 square feet with high cooling loads, APS summer bills commonly run $350 to $500 or more. A 14 percent rate increase on a $450 monthly bill adds over $750 per year in new electricity costs, compounding every year forward. A properly sized solar system eliminates most of that bill and insulates the homeowner from every future increase.

In Sun City West and Sun City, retirees on fixed incomes face the most acute rate risk because their purchasing power does not grow with utility inflation. A $280 monthly APS bill growing at 4 percent annually reaches over $400 within 10 years without solar. With solar, that trajectory is broken on day one. Scottsdale homeowners, particularly those in larger properties on SRP service in the East Valley, see similar dynamics with SRP's demand-based rate structure.

Surprise and Fountain Hills homeowners are also well-positioned to benefit, as both cities have high solar production potential and a demographic profile that includes many homeowners with long time horizons ahead of them. The longer you plan to stay in your home, the more powerful the rate protection benefit of solar becomes.

Adding Battery Storage for Maximum Rate Protection

For homeowners who want maximum protection from both rate increases and grid outages, pairing solar with a battery storage system is the most comprehensive solution. Our whole-home solar page explains how a full solar plus battery system works for Phoenix homeowners. A battery stores excess solar production during the day and dispatches it at night, reducing the amount of expensive grid electricity you pull from APS or SRP during peak evening pricing hours. Combined with the prepaid lease structure, this represents the most complete financial and energy resilience package available to Arizona homeowners today.

Ready to stop paying for APS and SRP rate increases you have no control over? Visit our contact page to schedule a free consultation, or explore our full range of solar solutions on our services page.

Frequently Asked Questions

How much has APS raised rates in recent years?

APS has implemented multiple rate increases since 2017 and filed a rate case in 2025 seeking a nearly 14 percent residential increase. SRP raised rates in November 2025. Both utilities are responding to rising infrastructure costs and record-breaking demand from new data centers and population growth in Maricopa County.

Does solar protect you from future APS rate increases?

Yes. Every kilowatt hour your solar system produces is one you did not buy from APS. Your effective electricity cost from solar is fixed at installation. Every future APS rate increase actually increases the value of your solar production, improving your savings retroactively.

Why are Arizona electricity rates rising so fast?

A combination of rapid population growth, over 125 data centers in Maricopa County driving massive new grid demand, and aging transmission infrastructure requiring expensive upgrades is pushing APS and SRP rates sharply higher. These are structural forces that will not reverse quickly.

What is the cheapest way to go solar in Arizona right now?

The prepaid solar lease with a 30 percent discount is the most cost-effective path for most Phoenix Valley homeowners in 2025. You pay upfront at a discount below retail cost, immediately start saving on your utility bill, and the solar company handles all maintenance for the lease term.

Is now a good time to go solar in Arizona given rising rates?

Yes. Every month you delay, you pay full utility rates. Installing solar today locks in your savings immediately and protects you from every rate increase going forward. The longer you wait, the more you pay to APS or SRP before your system starts working for you.