Select your country, enter your monthly bill — get instant monthly, annual, and 25-year savings in your local currency. Free, no email required.
Monthly, annual & 25-year savings in your local currency
Want your full solar estimate — cost, payback period, and lifetime ROI together?
Use the Global CalculatorOur solar savings calculator estimates how much money you can save by switching to solar panels — based on your country, your current electricity bill, and your roof's sun exposure.
Here's what happens under the hood when you click "Calculate My Savings":
Note: All results are estimates for educational purposes only. Actual savings depend on your specific roof, local utility rates, installer pricing, and equipment. Always get a quote from a licensed local installer before making a decision.
Your actual solar savings depend on several factors. Here are the biggest ones:
Our Solar Savings Calculator uses your country's average electricity rate, your monthly bill, and your roof's sun exposure to estimate how much you could save by switching to solar panels. Here's exactly what happens behind the calculation:
We apply your country's real average electricity rate (in local currency) to calculate your current energy cost per kWh.
Based on your roof exposure, we estimate how much of your electricity a solar system could offset — typically 70–90%.
We estimate your system cost using local installation price benchmarks and apply any available government incentives for your country.
Lifetime savings are projected over 25 years with a 2.5% annual electricity rate increase — showing your true long-term financial gain.
Important: All results are estimates for educational purposes only. Actual savings depend on your specific roof, local utility rates, installer pricing, and available incentives. Always get a quote from a licensed solar installer before making any decision.
Your actual solar savings depend on several key factors. Understanding them helps you get the most out of your system:
The higher your electricity rate (cost per kWh), the more you save with solar. Homeowners in countries with high rates like Germany, UK, Italy, and Australia see the biggest savings.
A south-facing roof with full sun generates up to 40% more electricity than a shaded or north-facing roof. More sun = more electricity generated = more savings.
Tax credits, rebates, and feed-in tariffs reduce your net system cost, which directly increases your lifetime ROI. The US 30% federal ITC alone cuts payback by 2–3 years.
Electricity prices rise on average 2.5% per year globally. Every rate increase makes your solar savings grow automatically — meaning your 25-year total is higher than year-1 savings suggest.
Owning your system (via cash or loan) delivers far higher lifetime savings than leasing, because you keep all incentives and your home value increase. See our Financing Calculator for the comparison.
Solar savings vary significantly around the world. Here's a quick reference of typical annual savings for a standard 5–6kW system:
| Region | Avg Rate | Year 1 Savings | 25-Year Savings | Payback |
|---|---|---|---|---|
| 🌎 United States | $0.14/kWh | $1,440/yr | $37,500 | 6–8 yrs |
| 🇬🇧 United Kingdom | £0.34/kWh | £1,800/yr | £45,000 | 5–7 yrs |
| 🇩🇪 Germany | €0.36/kWh | €1,900/yr | €47,000 | 6–8 yrs |
| 🇦🇺 Australia | AU$0.32/kWh | AU$2,200/yr | AU$55,000 | 4–6 yrs |
| 🇮🇳 India | ₹6.5/kWh | ₹28,000/yr | ₹700,000 | 5–7 yrs |
| 🇧🇷 Brazil | R$0.90/kWh | R$3,500/yr | R$87,000 | 5–8 yrs |
Go deeper on any topic with our free educational guides: