Find Out What Solar Could Save You

Get a personalised solar estimate in under a minute. See the system size, installation cost, annual savings, and payback period for your home.

Calculate Your Solar Savings

Explore Our Solar Calculators

Each calculator focuses on a different part of your solar journey. Start with the full estimator or dive into the detail that matters most to you.

Solar Estimator

Get a complete estimate: system size, cost, savings, and payback in one go.

Panel Calculator

Find out how many solar panels your roof needs based on your usage.

Cost Calculator

See a detailed breakdown of installation costs for your country.

Savings Calculator

Calculate your annual bill savings and 25-year total returns.

Payback Calculator

Find out how many years until your system pays for itself.

Battery Calculator

Compare savings with and without battery storage.

Installation Cost Calculator

Understand the full cost including panels, inverter, and labour.

Energy Calculator

Estimate how much electricity your panels will generate.

Map EstimatorNew

Pick a location on the map and estimate solar output for your roof area.

Quote CheckerNew

Got a quote? Check if your solar installation price is fair for your country.

Solar Panel Calculator

Enter your electricity bill, home details, and country to get a personalised estimate of your solar panel system size, cost, and savings.

Enter Your Details

Optional — improves accuracy by using regional solar data instead of national averages.

NESWS
optimalleast optimal

Each panel needs ~1.7 m² (~18 sq ft). Only count unobstructed, sun-facing roof area.

Your Results Will Appear Here

Fill in your details on the left and click "Calculate" to see your personalised solar estimate.

Solar Estimates by Home Size

Typical ranges for homeowners in United States. Select your country in the calculator for a personalised estimate with your electricity rates.

Small Home

1–2 bedroom apartment or small house

System Size
3–4 kW
Panels
8–10 panels
Cost Range
$7,200–$12,800
Annual Savings
$356–$497
Payback
7–9 years
Most Common

Medium Home

3 bedroom house, average consumption

System Size
5–7 kW
Panels
13–18 panels
Cost Range
$12,000–$22,400
Annual Savings
$610–$870
Payback
6–8 years

Large Home

4–5 bedroom house or high usage

System Size
8–12 kW
Panels
20–30 panels
Cost Range
$19,200–$38,400
Annual Savings
$1,017–$1,492
Payback
6–9 years

How Our Solar Estimate Works

1

Enter Your Details

Tell us your country, monthly electricity bill, home size, roof direction, and shading conditions.

2

We Calculate Your System

Using your country's sun hours, electricity rates, and installation costs, we size a system to cover ~90% of your usage.

3

See Your Results

Get a clear breakdown of system size, cost range, annual savings, payback period, and 25-year returns.

Why Use Our Solar Estimator?

Works Globally

Country-specific pricing, sun hours, and export rates for the US, UK, Australia, Canada, NZ, and Ireland.

Instant Results

Get a detailed solar estimate in seconds. No sign-up required, no personal data collected.

Detailed Breakdown

System size, panel count, cost range, yearly savings, payback period, and 25-year returns.

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