The Real Cost of Doing Nothing: 10 More Years on the Grid

Your Electricity Bill Is a Subscription That Never Stops Rising

Most homeowners think of solar as an expense. In reality, the most expensive decision is the one you might not even realize you are making — doing nothing. Every month you stay on the grid without solar, you are locking in rising costs with zero return on investment. That monthly electricity payment builds no equity, earns no tax credits, and increases every year without fail.

Between 2015 and 2025, the average US residential electricity rate climbed from /bin/bash.126/kWh to /bin/bash.178/kWh — a 41% increase. In high-cost states like California, Connecticut, and Massachusetts, rates jumped even more dramatically. California residential rates averaged /bin/bash.314/kWh in early 2026, up from /bin/bash.199/kWh just five years earlier — a 58% increase.

These are not temporary spikes. Grid infrastructure is aging, fuel costs are volatile, and utilities are passing through billions in wildfire mitigation, grid hardening, and clean energy mandates to ratepayers. The Energy Information Administration projects residential rates will continue rising 2.5-4.5% annually through 2035, depending on the region.

The 10-Year Cost Projection

Let us put real numbers to the cost of inaction. The average US household consumes about 10,500 kWh per year and pays roughly ,870 annually at the current national average rate of /bin/bash.178/kWh.

At a conservative 3% annual rate increase — below the historical 4.1% average — here is what your electricity spending looks like over the next decade:

Year 1 (2026): ,870. Year 2: ,926. Year 3: ,984. Year 4: ,043. Year 5: ,105. Year 6: ,168. Year 7: ,233. Year 8: ,300. Year 9: ,369. Year 10: ,440. The 10-year total comes to 1,438 in cumulative electricity payments — and you own nothing at the end.

In higher-cost states, the numbers are staggering. A California household using 8,500 kWh annually at /bin/bash.314/kWh pays ,669 in year one. With the same 3% escalator, their 10-year cumulative cost reaches 0,596. At the more realistic California escalation rate of 5-6%, that number exceeds 5,000.

A Massachusetts household at /bin/bash.298/kWh faces a similar trajectory: roughly 8,600-2,000 over the decade, depending on rate escalation assumptions.

What That Same Money Could Buy You

Here is where the comparison gets compelling. The average cost of a 7 kW residential solar system in 2026 is approximately 1,000 before incentives. After the 30% federal Investment Tax Credit, your net cost drops to around 4,700.

That 4,700 investment eliminates 80-100% of your electricity bill for 25-30 years. On a simple math basis, you are swapping a 1,438 cumulative expense (which buys you nothing) for a 4,700 asset that produces free electricity for decades and increases your home value by an average of 5,000-0,000 according to Zillow research.

If you finance the system with a solar loan at 5.5% over 20 years, your monthly payment is approximately 01. Most homeowners see their electricity bill reduced by 30-00 per month, creating net positive cash flow from day one. You are literally paying less each month than you were before — and building equity in an energy-producing asset.

The Hidden Costs of Grid Dependence

The sticker price on your utility bill is only part of the story. Grid dependence carries costs that do not show up on a monthly statement.

Outage costs. The average US home experienced 7.8 hours of power interruptions in 2024, according to EIA data. For homes with medical equipment, home offices, or food storage, even brief outages carry real financial consequences. A single extended outage can cost a household 00-,000 in spoiled food, lost productivity, hotel stays, or generator fuel.

Rate structure risk. Utilities across the country are shifting to time-of-use pricing, demand charges, and reduced net metering compensation. These structural changes disproportionately impact non-solar homes. In California, NEM 3.0 reduced the value of exported solar energy — but for grid-only customers, TOU peak rates increased simultaneously.

Inflation exposure. Electricity is one of the few household expenses that has outpaced general inflation consistently for two decades. Solar locks in your energy cost at installation — a 25-year hedge against utility rate volatility that no other home improvement can match.

Home value stagnation. As solar adoption crosses the tipping point in more markets, homes without solar may face a relative value discount. According to a 2024 Lawrence Berkeley National Laboratory study, solar homes sell for 5,000 more on average. As buyer expectations shift, non-solar homes may need to offer price concessions to compete.

But What If Solar Gets Cheaper Later?

This is the most common reason homeowners delay — the idea that waiting will save money. Here is why the math says otherwise.

Solar panel costs have declined dramatically over the past decade, but the rate of decline has flattened significantly since 2022. Module prices dropped 80% between 2010 and 2020, but only about 8-12% between 2020 and 2026. Meanwhile, labor costs and permitting fees have increased, partially offsetting hardware savings. The National Renewable Energy Laboratory (NREL) projects total installed costs will decline only 1-3% annually going forward.

While you wait for a marginally cheaper system, you are paying full retail price for grid electricity every month. A homeowner who waits two years to save 00 on a system will have spent ,800 in electricity bills during that wait — a net loss of ,300. The math consistently favors acting now in any rate environment above /bin/bash.12/kWh.

Additionally, incentive programs are time-limited. The federal ITC is at 30% through 2032 but steps down after that. State programs like Massachusetts SMART, California SGIP, and New Jersey SRECs have finite budgets that will eventually be fully allocated. Waiting risks losing thousands in incentive value.

What the Numbers Look Like With Solar + Battery

For homeowners who want both bill elimination and backup power, a solar-plus-battery system offers the most comprehensive financial picture. A typical 7 kW solar + 13.5 kWh battery system costs approximately 0,000 before incentives, dropping to 1,000 after the 30% ITC.

This system eliminates your electricity bill, provides 8-12 hours of backup power during outages, and can participate in utility demand response programs that pay 00-,700 annually depending on your state. In ConnectedSolutions states (Massachusetts, Connecticut, Rhode Island), the battery payments alone can offset the battery cost within 4-5 years.

Over 25 years, a solar-plus-battery system generates 0,000-0,000 in cumulative electricity savings depending on your rate environment — a 3-4x return on your initial investment.

How to Evaluate Your Specific Situation

Every home is different, and the economics of solar depend on your specific rate structure, roof orientation, shading, and local incentives. But the directional math is nearly universal: if you pay more than 0 per month in electricity, solar produces a positive return over its lifetime.

Start with a 5-minute assessment on EnergyScout. Enter your zip code and current electricity bill to see your personalized savings projection, available incentives, and estimated payback period. The tool models your specific rate environment, local solar irradiance, and all applicable federal, state, and utility incentives — giving you a clear picture of what doing nothing is really costing you.

The most expensive energy decision is not choosing the wrong solar system — it is choosing no system at all.

Sources

1. EIA — Electric Power Monthly: Average Retail Price of Electricity
2. EIA — Annual Energy Outlook 2025: Electricity Price Projections
3. NREL — Solar Market Research and Analysis
4. SEIA — Solar Industry Research Data
5. Zillow — Solar Panels and Home Value Research
6. Lawrence Berkeley National Laboratory — Tracking the Sun Report
7. DSIRE — Database of State Incentives for Renewables and Efficiency