Why Your SMUD Bill Spikes Every Summer — and How Sacramento Homeowners with Solar Are Fixing It

Every June, it happens. The weather heats up, the AC kicks on, and your SMUD bill does something that doesn't quite make sense — it's noticeably higher than last month, even though your solar panels are producing more power than ever.

You're not imagining it. And you're not alone.

This is one of the most common frustrations Sacramento homeowners bring to us: "I have solar, why is my summer bill still this high?"

The answer comes down to three hours a day. And once you understand it, the fix becomes obvious.

The 3-Hour Problem Hidden in Your SMUD Bill

SMUD charges most Sacramento homeowners on what's called the Time-of-Day (TOD) rate — a pricing structure where electricity costs different amounts depending on when you use it, not just how much you use.

For most of the day and all weekend, SMUD's rates are among the lowest in California. That part is genuinely good news.

But from 5pm to 8pm on weekdays, June through September, everything changes.

During those three hours, SMUD's peak rate jumps to $0.3765 per kWh — nearly three times the off-peak rate. That's the moment everyone gets home from work, cranks up the AC, starts cooking dinner, and runs the dishwasher. Grid demand spikes. And SMUD charges accordingly.

Here's the part that catches solar homeowners off guard: your panels don't help you much during those three hours.

Solar production peaks around midday, then drops off through the afternoon. By 5pm — right as SMUD's most expensive window begins — your panels are generating very little. So even if your system produced 30 kWh of clean energy earlier in the day, from 5 to 8pm, you're back on the grid. And you're paying the highest rate of the day for every kilowatt.

This is why Sacramento homeowners with solar can still see summer bills that don't feel like solar savings.

What Solar Alone Can and Can't Do

Solar panels are genuinely valuable for Sacramento homeowners — and SMUD's net metering is still among the most favorable in California. Your panels offset a real portion of your SMUD bill throughout the year, particularly during the spring and fall months when daytime usage and production align well.

But here's the structural mismatch:

Your solar system produces the most power from roughly 10am to 3pm — when your home is often empty, rates are moderate, and any excess gets exported back to SMUD at just 9.6 cents per kWh under the Solar and Storage Rate.

Then 5pm hits. Production drops. Everyone arrives home. The 5–8pm peak window opens. And you start buying the most expensive electricity of the day — the exact electricity your panels produced for free six hours earlier, now gone to the grid.

You generated the power. You just couldn't use it when it cost the most.

The Fix: Store It, Don't Sell It

A home battery changes this equation entirely.

Instead of sending your midday solar back to SMUD at 9.6 cents, your battery stores it. Then, from 5pm to 8pm, it discharges — automatically powering your home through the peak window without drawing a single kilowatt from the grid.

The result: the most expensive electricity you buy all year gets replaced by solar you already produced. For free.

Without a battery, you're still buying expensive grid power during evening peak. A battery stores midday solar and discharges it from 5–8pm, replacing expensive peak grid power with solar you already produced for free.

For a Sacramento household averaging $150–$250/month in SMUD charges, a meaningful portion of that summer bill lives in that 5–8pm window. A properly sized battery can eliminate much of it — not someday, every weekday, all summer long.

Here's Why the Math Works Even Better Right Now

If you're a Sacramento homeowner already on solar, this is where it gets interesting.

SMUD is currently running its My Energy Optimizer Partner+ program — a battery storage incentive that pays homeowners up to $10,000 for installing a qualifying battery system. That's a direct rebate, not a tax credit. It comes off the cost of your installation.

The incentive is calculated at approximately $500 per kilowatt-hour of battery capacity, which means:

• One Tesla Powerwall 3 (13.5 kWh): ~$5,400 back from SMUD
• Two Tesla Powerwalls (27 kWh): ~$10,000 (the household cap)

On top of that, Tesla Powerwall owners who enroll in SMUD's Virtual Power Plant (VPP) program receive approximately $440 per year, per Powerwall, in ongoing quarterly payments — for simply allowing SMUD to occasionally draw a small amount of stored energy during high-demand grid events. Your battery always maintains at least a 20% charge reserve for your home's own backup needs.

Stack it together and the picture looks like this for a two-Powerwall Sacramento home:

• $10,000 SMUD enrollment rebate
• $880/year in VPP payments (ongoing)
• Elimination of 5–8pm peak-rate purchases every summer weekday
• Backup power during outages, automatically

This is why Sacramento is genuinely one of the best markets in the country for solar plus battery storage right now — and why homeowners who are sitting on existing solar systems are increasingly asking about adding a battery.

One Important Timing Note

The SMUD rebate requires enrollment within 90 days of receiving Permission to Operate (PTO) on your battery installation. Miss that window and the $10,000 rebate is gone permanently — there's no exception and no retroactive claim.

This is the single most common mistake homeowners make when working with installers who aren't familiar with SMUD's specific process. At Empower, we manage the enrollment paperwork on your behalf so that deadline is never at risk.

Also worth knowing: the program is funded, not infinite. As of April 2026, SMUD has not announced an end date, but incentive amounts are subject to change as SMUD's program budget depletes. Homeowners who enroll sooner lock in the current rate.

Do You Qualify?

The two key requirements for the SMUD battery rebate:

1. You must be a SMUD customer. SMUD serves Sacramento city, Elk Grove, Folsom, Citrus Heights, Rancho Cordova, Carmichael, Fair Oaks, Orangevale, and surrounding Sacramento County communities. (If your bill comes from PG&E, you're not in SMUD territory — different programs apply.)

2. You must have qualifying solar installed on your home. This is a solar-plus-battery program. If you already have solar, you may be one conversation away from qualifying. If you've been considering adding solar, doing both at once also qualifies.

One note: the solar requirement is firm. Battery-only installations do not qualify for the SMUD My Energy Optimizer Partner+ rebate.

What to Do Next

If you're a Sacramento-area homeowner already on solar and your summer SMUD bills still feel higher than they should — a battery assessment is worth having.

Empower Home Services is a certified installer serving the Sacramento market, and we handle the full SMUD enrollment process from installation through the 90-day rebate window. Our assessment is free, and we'll walk you through your specific numbers — what the rebate covers, what your monthly savings look like, and whether the math makes sense for your home.

Call us at 800-306-6953 or visit this page to get started.

Your solar panels are already doing the work. A battery makes sure you actually get to use what they produce — when it matters most.

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Empower Home Services serves Sacramento and surrounding SMUD-territory communities including Elk Grove, Folsom, Citrus Heights, Rancho Cordova, Carmichael, Fair Oaks, and Orangevale. SMUD My Energy Optimizer Partner+ rebate amounts are subject to change as program funds deplete. Verify current amounts at smud.org. Solar is required to qualify. Enrollment must occur within 90 days of Permission to Operate. Call 800-306-6953 for details.