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#1 Global Solar Cost Calculator
Know Your Exact Solar Cost Before Talking to Anyone
Join 50,000+ homeowners who got their instant solar estimate — in their local currency, with real government incentives applied. No email. No sales call. Ever.
100+Countries Covered
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$20k+Avg 25-Year Savings
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🌍 Global Solar Cost Calculator
What Will Solar Panels Cost You?
Select your country and answer 3 questions — get an instant estimate in your local currency including payback period and lifetime ROI.
🌍 100+ Countries
💱 Local Currency
🏛️ Real Incentive Data
⚡ Instant Results
🆓 100% Free
🌍 Your Country & Home
Step 1 of 4 — Sets your currency, solar rates & electricity price
🔍
🏳️—
m²
🏠Tiles/ShingleMost common
🔩Metal RoofGreat for solar
🟫Concrete TileHigher install
⬛Flat RoofMounting needed
⚡ Your Energy Usage
Step 2 of 4 — Your monthly bill determines the system size needed
$100/mo
5600+
🌥️LowUK, N.Europe, Canada
⛅AverageUSA, China, C.Europe
☀️HighMid East, Africa, AUS
$0.14/kWh
0.010.60
🏡 System Preferences
Step 3 of 4 — Tailors the estimate to your setup
💵BudgetEntry-level panels
⭐StandardMid-range quality
💎PremiumTop-tier efficiency
🔋Yes, add battery+~$10,000
❌No batteryGrid-tied only
💰 Financing & Incentives
Step 4 of 4 — Final details for your personalised estimate
💵Cash / UpfrontBest long-term ROI
🏦Solar LoanLow/no deposit
📋Lease / PPALowest upfront
✅Yes — apply it30% Federal ITC (USA)
⛔No / Not eligibleSkip discount
%
☀️
Calculating your personalised solar estimate…
Your Estimated Solar Installation Cost
—
After incentives
⚡—System Size
🔋—Panels Needed (400W)
💵—Year-1 Savings
📅—Payback Period
🌱—Lifetime Savings
📈—Lifetime ROI
📊 Cost Breakdown
Gross System Cost—
Government Incentive—
Net Cost After Incentive—
Disclaimer: Estimates use regional averages and your inputs. Actual costs vary by installer, roof, shading, local rates, and available rebates. Always get 3+ quotes from licensed local installers. Not financial advice.
Why Use a Solar Panel Cost Calculator?
Getting a sense of how much solar panels cost — even before you are serious about going solar — is important for several reasons. Think of using our calculator like checking the Kelly Blue Book value of a car before you walk into a dealership.
🎯
Spot Overpriced Quotes
A baseline cost estimate helps you identify scams and solar quotes that are too expensive — or suspiciously cheap — to be true.
😌
Reduce Sticker Shock
Knowing what solar costs before you talk to an installer takes the edge off a large number. You walk in informed, not surprised.
📈
Plan Your Finances
Understanding the real cost gives you financial goals to work toward — whether saving cash, improving your credit, or choosing the right loan.
Solar vs Utility: 25-Year Cost Comparison
Ever-rising utility rates are far more expensive than solar panels over 25 years. The chart below shows how a typical US homeowner paying $150/month compares with and without solar:
$70K$52K$35K$18K$0
Without Solar (cumulative)
With Solar (cumulative)
25-Year Net Savings
$35,000+
Typical US homeowner — $150/mo bill
vs Without Solar
$63,000+
Total electricity cost over 25 years
How to Use Our Solar Panel Cost Calculator
Our calculator uses real electricity rates and installation benchmarks for 142 countries to give you an instant estimate in your local currency:
1
Select Your Country
Sets your local currency, average electricity rate, and applicable government incentives automatically.
2
Enter Your Monthly Bill
Used to estimate your household energy consumption and the right system size for your home.
3
Choose Roof Sun Exposure
Full Sun, Partial Sun, or Shaded — this determines how much electricity your panels generate per day.
4
Get Your Instant Estimate
See your estimated system cost, monthly savings, payback period, and 25-year ROI in your local currency — with incentives applied.
Remember: Results are estimates based on country averages — not a binding quote. Always get 3+ quotes from licensed local installers before making a decision.
What You'll See From Our Calculator
Answer a few questions about your home and energy use, and your results will show:
1
Your estimated system size in kW, based on your usage and roof inputs
2
How many 400W panels a system that size typically requires
3
Your estimated gross and net cost, with your incentive applied
4
Your projected year-1 savings based on your monthly bill and rate
5
Your likely payback period, in years
6
Lifetime savings and ROI across your chosen system lifespan (20–30 years)
What Goes Into Your Estimate
We built this calculator around the inputs that actually move the number — not a single flat average applied to everyone:
🌍
Country-specific data
Local currency, typical electricity rates, and the main government incentive for over 100 countries — not a one-size-fits-all US number.
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Your home and roof details
Home size, roof type, roof age, and shading level, which adjust system sizing and cost.
☀️
Your region's sun exposure
A Low / Average / High irradiance tier matched to your part of the world, which affects how much power a given system size produces.
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Your actual bill and rate
Your monthly electricity bill and per-kWh rate, which drive the system size and savings math — not a national average.
⚙️
Your equipment and financing choices
Panel quality tier, optional battery storage, and how you plan to pay — cash, loan, or lease — each change the final numbers.
Worth knowing: this calculator estimates based on the details you provide, not a satellite scan of your actual roof or a lookup of your specific utility's rate plan. For a number that accounts for your exact roof geometry, shading, and utility tariff, a licensed local installer's site assessment is the next step.
Solar System Cost Breakdown
Based on NREL residential solar cost data, here is where your solar dollar goes. Non-labor soft costs are the biggest chunk — meaning shopping installers, not panels, saves you the most money.
Cost Component
% of Total
Est. Amount*
Tip
Non-labor soft costs
44%
~$7,700
Permitting, financing, sales, overhead
Solar panel modules
18%
~$3,150
Cheaper than most people expect
Inverter
14%
~$2,450
DC to AC conversion equipment
Structural & electrical
19%
~$3,325
Mounting, wiring, and hardware
Installation labor
5%
~$875
Smallest component — don't optimize here
*Estimates based on a $17,500 average US system. Source: NREL residential solar cost analysis.
Average Solar Panel Cost & Savings by Country
A 6kW residential solar system — typical for a 3-bedroom home. Net cost shown after each country's main incentive. Use the calculator above for your personalized estimate.
Country
Gross Cost
Incentive
Net Cost
Payback
25-yr Savings
🇺🇸 United States
$17,700
30% ITC
$12,390
6–8 yrs
$37,500
🇬🇧 United Kingdom
£10,500
SEG tariff
£10,500
5–7 yrs
£45,000
🇩🇪 Germany
€12,000
Feed-in
€12,000
6–8 yrs
€47,000
🇦🇺 Australia
AU$8,500
STC rebate
AU$6,200
4–6 yrs
AU$55,000
🇮🇳 India
₹295,000
30% subsidy
₹206,500
5–7 yrs
₹700,000
🇮🇹 Italy
€12,500
50% Superbonus
€6,250
4–6 yrs
€42,000
🇧🇷 Brazil
R$44,000
Net metering
R$44,000
5–8 yrs
R$87,000
🇨🇦 Canada
CA$18,500
Provincial
CA$18,500
8–12 yrs
CA$28,000
See It in Action: Real Solar Costs in Specific U.S. Cities
The country-level averages above are a solid starting point, but actual solar pricing can vary significantly even within the same country. Local labor costs, sun hours, roof requirements, and state-specific incentives all shift the number up or down — sometimes by more than $1 per watt.
Take Pensacola, Florida and Cypress, Texas as an example. Both are warm-climate U.S. cities with heavy summer air-conditioning use, yet Pensacola's hurricane-resistant mounting requirements push typical installation costs to $2.40–$3.19 per watt, while Cypress benefits from more competitive Texas installer pricing at $2.19–$3.57 per watt. Meanwhile, a homeowner in Deerfield, Illinois faces Chicago-area labor rates and fewer annual sun hours, landing at $2.94–$4.00 per watt — noticeably higher than either warm-climate city, even before accounting for system size differences.
Location matters within a single state too. In California, San Clemente's mild coastal climate keeps typical system size small — around 3 kW — but high Southern California Edison electricity rates still deliver a fast ~6-year payback. Just a few hours away in the desert, Palm Desert homeowners need much larger systems (10+ kW) to handle heavy summer cooling, yet see some of the highest 25-year savings in the state, thanks to those same high electricity rates working in their favor.
We've published full local cost breakdowns for five U.S. markets below, each with real 2026 pricing, payback periods, and state-specific incentive details:
No sun = no power. Net metering or battery storage required for full benefit.
⚠️ High Upfront Cost
$15K–$25K before incentives. Not every homeowner can finance this easily. See our Financing Calculator.
⚠️ Changing Net Metering Rules
California's NEM 3.0 cut export rates 75%. Check your local utility policy before going solar.
⚠️ Installer Quality Varies
Poor installers cause most solar regrets. Always vet contractors and get multiple quotes.
Going Solar: Typical Timeline
From first estimate to switch-on, going solar typically takes 3–6 months. Here's the full process:
Frequently Asked Questions
How much do solar panels cost in 2026?
The average residential solar system in 2026 costs $17,000–$25,000 before incentives in the US. Note that the 30% federal residential tax credit expired December 31, 2025, so cash and loan purchases in 2026 no longer receive it — state and utility incentives may still apply. Costs vary by system size, location, and installer. Use our calculator above for a country-specific estimate in your local currency.
How much can solar panels save on electricity bills?
Most homeowners save $100–$200 per month on electricity after going solar, totalling $30,000–$50,000+ over 25 years. Use our Savings Calculator for your country-specific estimate.
How long do solar panels take to pay for themselves?
The global average solar payback period is 5–8 years. After payback, electricity is essentially free for the remaining 15–20 years of panel life. Use our Payback Calculator for your exact break-even date.
Is the 30% federal solar tax credit still available in 2026?
No. The 30% federal residential solar tax credit (Section 25D) expired December 31, 2025. Homeowners who buy or finance a system with cash or a loan in 2026 no longer receive a federal credit. Leases and PPAs can still indirectly pass along savings through a separate commercial credit available to the system owner through 2027, and many state and utility incentives remain unaffected. Use our Tax Credit Guide to see what you still qualify for.
Will solar panels get cheaper?
Solar prices have dropped over 80% in the past decade. Waiting for cheaper panels is rarely the right strategy — every year you wait is another year of full electricity bills you could have offset. The ROI of going solar now typically outperforms waiting 2–3 years for marginal price reductions.
How much does a DIY solar kit cost?
Most self-install solar kits land between roughly $8,000 and $35,000 depending on system size, equipment, and whether battery storage is included. A typical home falls in the $14,000–$20,000 range for equipment alone. Note that the 30% federal solar tax credit expired December 31, 2025, so it no longer applies to systems placed in service in 2026 — check state and utility incentives instead.
What's the difference between a basic DIY kit and a complete self-install package?
A basic kit is typically generic components with no engineering, plan set, or permitting support included. A complete self-install package adds a system designed for your specific home, permit-ready engineering documents, and guidance through interconnection and inspection — for a modest cost increase that often prevents expensive mistakes.
How many solar panels do I need for my home?
Most homes need somewhere between 12 and 30 panels. The exact count depends on your electricity usage, available roof or ground space, and how much of your bill you want to offset. Use our calculator above for a panel count based on your actual monthly bill.
Do I need a permit to install solar panels myself?
Yes, almost always. Grid-tied solar requires both a local building/electrical permit and a utility interconnection agreement before you can legally operate. In most jurisdictions, a homeowner cannot pull the electrical permit alone — a licensed electrical or general contractor typically has to, even if you do the physical installation yourself. Rules vary by location, so confirm your local requirements before buying equipment.
How much does solar battery storage add to the cost?
A residential battery big enough to back up essential loads typically adds roughly $7,000 to $15,000 to a project, depending on capacity. Battery sizing depends on what you want to keep running during an outage — a refrigerator and a few outlets is a very different (and cheaper) build than whole-home backup.
Can I really install solar panels myself?
Many homeowners handle the physical mounting and wiring themselves, then bring in a licensed electrician for the final electrical connection where required. It's a realistic weekend-scale project for someone comfortable with hands-on work, but the permitting and inspection process around it usually takes longer than the physical install.
Is this solar cost estimate accurate?
These ranges are a starting point based on typical equipment costs, not a personalized quote. Your real number depends on your roof, shading, local permitting requirements, and equipment choices. Use the calculator above for an estimate based on your own address and usage, and always confirm final pricing with a supplier or installer before buying.
If you're comfortable handling some of the physical work yourself, a self-install solar kit can meaningfully cut your total project cost compared to a full-service installed system. Here's what typically goes into that number, and how it differs from a bare-bones DIY panel kit.
More Than Just a Price Tag
A useful self-install estimate should give you more than one number — it should help you understand the system behind it.
01
Estimated System Size
A rough sense of how large a system your home likely needs to offset your typical usage.
02
Panel Count Ballpark
A realistic starting point for how many panels a kit that size typically requires.
03
Inverter Basics
A quick primer on string, microinverter, and hybrid options and which tends to fit which setup.
04
Battery Sizing Basics
A sense of whether backup makes sense for your goals and roughly what size range to consider.
05
Roof vs. Ground Mount
Early guidance on which mounting approach tends to suit different property types.
06
Planning Notes
A checklist of permitting, utility interconnection, and complexity factors worth knowing early.
Basic DIY Kit vs. a Complete Self-Install Package
Not all "DIY solar" is the same. A bare box of panels is very different from a complete, code-ready package designed for your home.
Basic DIY Solar Kit
✕ Generic, off-the-shelf components
✕ Sized generically, not for your home
✕ No engineering or plan set included
✕ You handle permitting on your own
✕ Little to no installation support
Complete Self-Install Package
✓ Professional-grade equipment
✓ Custom-sized for your home and usage
✓ Engineering and permit-ready plans
✓ Permitting and interconnection guidance
✓ Step-by-step install support
A complete self-install package usually costs somewhat more than a bare-bones kit, but far less than turnkey professional installation — because you're still supplying the labor.
What Affects the Cost of a Self-Install Kit?
System size is the biggest driver — a small 5 kW kit for a modest home looks very different from a 12–15 kW system sized to fully offset a high-usage household or charge an EV.
Beyond panels, total kit cost includes the inverter, racking and mounting hardware, wiring, monitoring equipment, and often battery storage. Inverter type alone — string, microinverter, or hybrid — can shift project cost by thousands of dollars.
Permitting, engineering plan sets, and utility interconnection paperwork are part of a complete project too. Some DIY buyers are surprised these aren't included in a bare kit price, and either pay for them separately or run into inspection issues later.
Rough Self-Install Cost Ranges
System Size
Typical Home
Est. Kit Cost
5–6 kW
Small / low usage
$8,000–$13,000
8–10 kW
Average home
$14,000–$20,000
10–12 kW
Larger home / EV
$18,000–$26,000
12–15 kW+
High usage / battery
$24,000–$35,000+
Ranges are rough equipment-cost estimates and don't include installation labor (which you're supplying), permitting fees, or utility-specific requirements. Use our calculator for a number based on your own home.
Disclaimer: All calculator results are estimates for informational and educational purposes only — not a substitute for a professional solar quote or financial advice. Actual costs, savings, and payback periods depend on your specific roof, location, electricity rate, and installer pricing. Always consult a licensed solar installer and qualified tax professional before making any solar investment decision. See our full disclaimer for details.
