How much do solar panels cost in Modesto?
By Our research team · Last verified · Methodology
Most 8 kW solar installs in Modesto cost $18,150–$28,600 for an 8 kW home system with standard panels, installed. $22,150 is the typical price, and there is no federal tax credit to take off it in 2026.
How we get this data- Typical
- $22,150
- Low end
- $15,350
- High end
- $35,600
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Modesto's price band
Modesto is pricier than 56% of the 195 US metros we price for solar panel work.
Expect $18,150–$28,600 for 8 kW of panels, $22,050–$34,700 for 10 kW, and $11,400–$18,400 more for a Tesla Powerwall 3. Every price here is before incentives, and the federal homeowner credit is gone for 2026 installs.
As a smaller market with fewer solar installers to choose from, Modesto prices a typical 8 kW system at about $22,150. California averages about 6.1 peak sun hours a day in NREL data (the US average is about 5). Customers of PG&E, SCE and SDG&E who applied to connect after April 14, 2023 are on the state's Solar Billing Plan, which credits exported power at rates that change by hour and season and puts you on a time-of-use plan. California caps the city permit fee for a home rooftop system at $450 up to 15 kW, and its property tax exclusion for new solar covers systems finished by December 31, 2026.
Prices are before incentives. The federal homeowner credit is gone for 2026 installs (it ended for expenditures after December 31, 2025), so any help now comes from your state, your utility or a lease company's own business credit.
Comparing cities, or after the US-wide picture? See the national guide: Solar panel cost in the USA.
$18,150–$28,600 installed in Modesto for an 8 kW home solar system with standard panels, typically $22,150 with no federal tax credit in 2026. That is about $2,750 per kW. Verified November 2026. Get free Modesto quotes →
- 8 kW system, installed: $18,150–$28,600 ($22,150 typical, about $2,750 per kW)
- 6 kW: $14,300–$22,450; 10 kW: $22,050–$34,700; premium panels add 10–25%
- Battery added with solar: $8,950–$18,400 for 10–13.5 kWh
- No federal tax credit for systems you own installed after December 31, 2025
- About 39 kWh a day from 8 kW at local sun levels; exports earn less here, so use or store the power
Prices verified November 2026 · Cross-referenced against 42+ American pricing sources · See methodology
Installed prices before any state or utility incentive, and with no federal credit. Modesto metro, re-verified November 2026. Battery and inverter hardware is priced nationally, so those lines move less from city to city.
| Service | Low | Typical | High |
|---|---|---|---|
| 8 kW solar system, standard panelsinstalled | $18,150installed | $22,150 | $28,600 |
| 6 kW solar system, standard panelsinstalled | $14,300installed | $17,400 | $22,450 |
| 6 kW solar system, premium panelsinstalled | $15,700installed | $20,000 | $28,100 |
| 8 kW solar system, premium panelsinstalled | $19,950installed | $25,450 | $35,750 |
| 10 kW solar system, standard panelsinstalled | $22,050installed | $26,900 | $34,700 |
| 10 kW solar system, premium panelsinstalled | $24,300installed | $30,950 | $43,400 |
| 12–13 kW solar system for a large homeinstalled | $26,250installed | $33,150 | $44,050 |
| Price per kW, standard panelsper kW | $2,250per kW | $2,750 | $3,550 |
| 5 kWh battery added with solarinstalled | $5,450installed | $6,950 | $8,450 |
| 10–13 kWh battery added with solarinstalled | $8,950installed | $12,900 | $16,900 |
| Tesla Powerwall 3 (13.5 kWh), installedinstalled | $11,400installed | $14,650 | $18,400 |
| Hybrid inverter upgrade (battery-ready)installed | $2,500installed | $3,500 | $5,450 |
| String inverter replacementinstalled | $1,500installed | $2,300 | $3,500 |
| Microinverter replacement, one unit (out of warranty)per unit | $300per unit | $450 | $740 |
| Solar panel cleaning (15–25 panels)per visit | $150per visit | $300 | $490 |
| System health check / inspectionper visit | $150per visit | $250 | $350 |
| Remove and reinstall panels for a re-roof (about 20 panels)per job | $3,450per job | $4,950 | $7,900 |
| Critter guard around the array (8–10 kW)installed | $690installed | $1,200 | $1,700 |
| Main panel upgrade for solar (to 200 amps)installed | $1,500installed | $2,500 | $4,450 |
| Monitoring subscription, where chargedper year | $0per year | $120 | $240 |
| Ground mount instead of roof mount (8 kW)extra | $3,950extra | $6,450 | $9,900 |
| Clay or concrete tile roofextra | $990extra | $1,750 | $2,450 |
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Prices verified November 2026 · Cross-referenced against 42+ American pricing sources · See methodology
Figures cover the Modesto metro area. Jobs in Downtown Modesto & McHenry can run higher; simple roofs in Riverbank, Oakdale & Manteca sit closer to the low end.
Solar panel prices across Modesto
Same system, four price bands. The spread comes from roof type, access and shade: tighter and older in Downtown Modesto & McHenry, easier in Riverbank, Oakdale & Manteca.
Downtown Modesto & McHenry
- 8 kW installed
- $19,250–$30,900 installed
- Typical job
- $15,150–$37,500 / 6–10 kW system
The priciest part of the metro to install in: tight access, older wiring and roofs that may need work first. The panels cost the same; the labor and paperwork do not.
South & West Modesto
- 8 kW installed
- $18,700–$29,750 installed
- Typical job
- $14,750–$36,100 / 6–10 kW system
Mixed older housing and lots of mature trees. A shade report and a roof check up front stop surprises later.
Ceres & Turlock
- 8 kW installed
- $18,150–$28,600 installed
- Typical job
- $14,300–$34,700 / 6–10 kW system
Typical single-family roofs and typical prices. Most installs here take one to three days on the roof.
Riverbank, Oakdale & Manteca
- 8 kW installed
- $17,800–$28,600 installed
- Typical job
- $14,000–$34,700 / 6–10 kW system
Big roofs and big bills. Larger systems cost less per kW, and this is where most 10–12 kW jobs in the metro are.
Real solar jobs in Modesto
Here's what common solar panel jobs cost in Modesto in 2026, installed, before incentives.
Smaller home: 6 kW, standard panels
About 29 kWh on an average day at California's sun levels. Smaller systems cost more per kW, about $2,900 here against $2,750 for 8 kW.
Typical home: 8 kW, standard panels
About 39 kWh a day and 14,200 kWh a year. $22,150 is the typical Modesto price for a pitched shingle roof in good shape.
Solar plus a Powerwall 3
An 8 kW system with a 13.5 kWh battery for outages and evening use. Doing both in one job shares the crew, the permit and the utility paperwork.
Big home or EV owner: 10 kW, premium panels
Premium panels make more power per square foot, which helps on small or shaded roofs. Standard panels at 10 kW are $22,050–$34,700.
Re-roof with solar already on it
Taking about 20 panels off and putting them back after the roofers leave, on top of the roof itself. If your roof has less than 10 years left, replace it before solar goes on.
How much do solar panels cost in Modesto?
Between $18,150 and $28,600 for an 8 kW system, installed, and most Modesto homeowners pay close to $22,150. Three things set the number: system size, panel brand and the roof. A simple shingle roof with standard panels lands near the low end; premium panels on a steep or tile roof can pass $35,750.
Bigger systems cost less per kW. In Modesto, 6 kW is about $2,900 per kW, 8 kW about $2,750 and 10 kW about $2,700. Figures re-verified against 42 sources in November 2026.
Solar prices in Modesto (2026): the lines on a quote
An 8 kW system is $18,150–$28,600 installed, a battery adds $8,950–$18,400, and a panel upgrade adds $1,500–$4,450 if your panel is full.
| Line on the quote | Low | Typical | High |
|---|---|---|---|
| 8 kW system, standard panels | $18,150 | $22,150 | $28,600 |
| 8 kW system, premium panels | $19,950 | $25,450 | $35,750 |
| Tesla Powerwall 3, added at install | $11,400 | $14,650 | $18,400 |
| Main panel upgrade (to 200 amps) | $1,500 | $2,500 | $4,450 |
| Tile roof, extra | $990 | $1,750 | $2,450 |
| Ground mount, extra | $3,950 | $6,450 | $9,900 |
| Critter guard | $690 | $1,200 | $1,700 |
| String inverter replacement (later) | $1,500 | $2,300 | $3,500 |
Standard vs premium panels in Modesto: the gap on 8 kW is about $3,300. Premium panels pay off on small or shaded roofs where you need more power per square foot; on a big sunny roof, standard panels are the better buy.
What moves a solar quote in Modesto:
- System size — bigger systems cost less per kW: about $2,900 at 6 kW against $2,700 at 10 kW.
- Panel and inverter brand — premium panels run 10–25% more; microinverters cost more than one string inverter but last longer.
- The roof — tile adds $990–$2,450, a ground mount $3,950–$9,900, and a worn roof should be replaced first.
- The electrical panel — a full or 100-amp panel can add $1,500–$4,450 for an upgrade.
- Who sells it — sales and marketing are about 15% of a typical price; local installers often quote less than national brands.
Ask every Modesto installer for the same five things: system size in kW, panel and inverter models, the price per kW, the warranty terms, and what roof, panel and permit work is included. Compare those lines, not the total. Get a quote for your solar install →
Solar Panel Cost in Modesto by System Size
A 6 kW system is $14,300–$22,450, 8 kW is $18,150–$28,600, and 10 kW is $22,050–$34,700, installed with standard panels, before any state or utility incentive.
Worked example: a Modesto home using about 1,200 kWh a month gets an 8 kW system at $22,150. If the panel is 100 amps, add an upgrade at $2,500 for $24,650. Add a Powerwall 3 in the same job and the total is about $38,550.
A larger home with central AC or an EV may need 10–12 kW: $26,900 for 10 kW, or $33,150 for 12–13 kW at typical prices. Premium panels on 10 kW run $24,300–$43,400.
Modesto Solar Panel Costs by System Size
| System size | Cost | Best for |
|---|---|---|
| 4 kW system — about 19 kWh a day | $10,600–$16,650 installed | Small home or condo; low bills or a small roof |
| 6 kW system — about 29 kWh a day | $14,300–$22,450 installed | Smaller home or modest power use |
| 8 kW system — about 39 kWh a day | $18,150–$28,600 installed | Typical home; about 1,200 kWh a month of use |
| 10 kW system — about 49 kWh a day | $22,050–$34,700 installed | Larger home, central AC or one EV |
| 12 kW system — about 58 kWh a day | $26,250–$41,350 installed | Big home, pool or electric heat |
| 15 kW system — about 73 kWh a day | $31,700–$49,850 installed | Very large all-electric home or two EVs |
| 8 kW solar + 13.5 kWh battery | $29,000–$46,100 installed | Backup in outages and evening use where exports earn little |
| 13.5 kWh battery only (no solar) | $11,400–$18,400 installed | Backup without panels; shaded roofs |
Hardware vs everything else: where a Modesto solar quote goes
Panels, inverter, racking and wiring are only about 41% of a typical US solar price. On a $22,150 Modesto job that is roughly $9,100. Sales and marketing take about 15%, design, paperwork and overhead about 20%, installer profit about 16%, and the install labor itself only about 6%.
That is why the payback math matters more than the panel brand. An 8 kW system here makes about 14,200 kWh a year. At California's 2024 average of 27.0 cents a kWh across all customers (EIA; home rates usually run higher), that power is worth about $3,850 a year, a simple payback near 6 years. On the Solar Billing Plan, exported power earns far less than power you buy, so real payback runs longer unless you use most of the output at home or store it in a battery.
What's included in a Modesto solar quote (and what costs extra)
A standard quote covers the panels, inverter, racking, wiring, the install crew, permits, inspection and the utility hookup paperwork. The headline price often leaves out:
- Roof work — repairs, or $990–$2,450 extra for a tile roof
- Panel upgrade — $1,500–$4,450 if your electrical panel is full or 100 amps
- Critter guard — $690–$1,700 to keep birds and squirrels out from under the panels
- A battery — $8,950–$18,400 for 10–13.5 kWh of storage, if you want backup
Get the warranty terms in writing: panel and inverter years, the workmanship warranty, and who fixes roof leaks around the mounts.
Your local market
Modesto is a smaller market with fewer solar installers to choose from. The hardware price is national; labor, permits, sales costs and how many installers compete for the job are local.
System size
An 8 kW system is $18,150–$28,600. A 6 kW system is $14,300–$22,450 and 10 kW $22,050–$34,700; the price per kW drops as the system grows.
Panels and inverters
Premium panels add 10–25% ($19,950–$35,750 for 8 kW). Microinverters cost more upfront than one string inverter but usually carry 20–25 year warranties; a string inverter often needs replacing once ($1,500–$3,500).
Your roof
Clay or concrete tile adds $990–$2,450, a ground mount $3,950–$9,900. If the roof has less than about 10 years left, re-roof first: removing and reinstalling panels later costs $3,450–$7,900.
Your electrical panel
A full or 100-amp panel is a common surprise. Upgrading to 200 amps adds $1,500–$4,450 in Modesto, and it is cheapest done with the solar job.
Adding a battery
A 10–13 kWh battery adds $8,950–$16,900, a Tesla Powerwall 3 $11,400–$18,400. Batteries make the most sense where outages are common or exports earn little.
Permits and the utility in Modesto
Permits and inspections are about 3% of a typical price, and the utility must approve the hookup before you can switch on. Ask who files the paperwork; a good installer does all of it.
- Get three quotes.Same panels, different sales costs. Modesto quotes for 8 kW run $18,150–$28,600; a second and third bid is the fastest way to find the padding.
- Compare the price per kW.Divide each quote by its size in kW. About $2,250–$2,750 per kW is a good Modesto price for standard panels; much above $3,550 needs a reason.
- Size it to your bills, not your roof.Use 12 months of bills. A system that makes more than you use only pays off if your utility credits exports well.
- Fix the roof first.Re-roofing under existing panels means paying $3,450–$7,900 to take them off and put them back.
- Bundle the panel and battery work.A panel upgrade ($1,500–$4,450) or a battery done in the same job shares the permit, the inspection and the utility visit.
- Check state and utility help.California caps the city permit fee for a home rooftop system at $450 up to 15 kW, and its property tax exclusion for new solar covers systems finished by December 31, 2026. Ask your utility about rebates and how it credits exports before you sign.
Before you pay a deposit to a Modesto solar installer, get these in writing:
- System size in kW and the expected output in kWh a year
- Panel and inverter brand and model
- Price per kW and the total before incentives
- Roof work, tile or ground-mount extras, priced as their own lines
- Any panel upgrade, priced as its own line
- Permit, inspection and utility interconnection, and who files them
- Warranties: panels, inverter, workmanship and roof leaks
- Payment schedule, and what happens if the utility hookup is delayed
How much do solar panels cost in Modesto?
$18,150–$28,600 installed for an 8 kW system, and $22,150 is typical. A 6 kW system is $14,300–$22,450 and 10 kW is $22,050–$34,700, before incentives.
What is the price per kW for solar in Modesto?
About $2,750 per kW for an 8 kW system with standard panels, within $2,250–$3,550. Smaller systems cost more per kW and larger ones less.
Is there still a federal solar tax credit in Modesto?
Not for systems you buy. The 30% Residential Clean Energy Credit ended for expenditures made after December 31, 2025, and the IRS treats the expense as made when installation is complete. Lease and PPA companies may still claim a business credit and pass some of it on in their price.
How much does solar with a battery cost in Modesto?
About $29,000–$46,100 for 8 kW of panels plus a Tesla Powerwall 3. A 10–13 kWh battery from another brand adds $8,950–$16,900 to the solar price.
How long does solar take to pay off in Modesto?
Roughly 6 years for a typical 8 kW system at California's 2024 average power price from EIA (27.0 cents a kWh across all customers), with every kWh worth the full price. On the Solar Billing Plan, exported power earns far less than power you buy, so real payback runs longer unless you use most of the output at home or store it in a battery.
How much power will an 8 kW system make in Modesto?
About 39 kWh on an average day, or 14,200 kWh a year, based on about 6.1 peak sun hours a day for California in NREL data.
Do I need a new electrical panel for solar in Modesto?
Not always. Many 200-amp panels take solar as they are. A full or 100-amp panel may need an upgrade, about $1,500–$4,450 here.
What does solar panel cleaning and upkeep cost in Modesto?
Cleaning is $150–$490 a visit and a health check $150–$350. Many roofs never need cleaning; rain does most of it. Budget $1,500–$3,500 for one string inverter replacement over the life of the system.
How much does it cost to remove solar panels for a new roof in Modesto?
$3,450–$7,900 to take about 20 panels off and put them back, on top of the roof itself.
What permits does solar need in Modesto?
A building or electrical permit, an inspection, and the utility's approval to connect. Your installer should file all of it; permits and inspections are about 3% of a typical price.
Prices verified November 2026 · Cross-referenced against 42+ American pricing sources · See methodology
Prices for the Modesto metro area, November 2026. Outer suburbs may vary.
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