How Much Could Solar Save You?

☀️ Solar & Battery Calculator

How Much Could Solar & Battery Storage Save You?

Find out instantly whether your property is suitable for solar panels, how much you could save on your energy bills, what you could earn exporting surplus energy, and when your system pays for itself.

£1,100+

Average annual saving

7–10 yrs

Typical payback period

25 yrs

Panel lifespan

Step 1 of 5

Tell us about your property

Property type and roof orientation are the biggest factors in solar suitability

Property Type

🏡 Detached House Best roof space — ideal for solar

🏘️ Semi-Detached Good roof space on one side

🏠 Terraced House Limited roof space but still viable

🏚️ Bungalow Large roof area — excellent for solar

🏢 Flat / Apartment Usually only suitable with landlord agreement

🏬 Commercial / Business Large roof — excellent ROI potential

Roof Direction

☀️ South Facing Optimal — maximum generation

🌤️ South-East / South-West Very good — near optimal

⛅ East / West Good — still worth installing

🌥️ North Facing Low output — not recommended

🏗️ Flat Roof Good — panels angled optimally

❓ Not Sure We'll assume a good average

⚠ Please select both property type and roof direction.

Step 2 of 5

Your current energy usage & costs

Check your energy bill for your annual usage — UK average is around 3,100 kWh per year

Annual Electricity Usage 3,100kWh/yr

1,000 kWh12,000 kWh

Current Unit Rate 24p/kWh

15p50p

Annual Electricity Bill £744

£300£5,000

💡 Adjust either your usage + rate OR your total bill — whichever is easier to find on your statement.

Step 3 of 5

Choose your system

A larger system generates more but costs more upfront — we'll calculate the best ROI for each

Solar Panel System Size

🔆 4kWp System ~10 panels. Best for smaller homes.

☀️ 6kWp System ~15 panels. Most popular choice.

🌟 10kWp System ~25 panels. Large homes & business.

Add Battery Storage?

Yes — add battery storage

Store surplus solar energy to use at night. Recommended for maximum savings.

Smart Export Guarantee (SEG) Tariff

Export Rate 15p/kWh

4p (min)25p (Octopus etc)

💡 Check your energy supplier's SEG tariff. Rates vary from 4p to 25p+ per kWh exported.

⚠ Please select a system size to continue.

Step 4 of 5

A couple more quick questions

These factors affect your suitability score and savings estimate

How much shading does your roof get?

☀️ None Open sky all day

🌤️ Some Trees or chimneys nearby

🌳 Heavy Significant shading for part of day

Do you own the property?

✅ Yes — I own it No restrictions on installation

🔑 No — I rent or lease Landlord permission required

Is the property in a conservation area or listed?

✅ No / Not Sure Standard permitted development applies

🏛️ Yes — Listed or Conservation Planning permission may be required

⚠ Please answer all three questions to continue.

Step 5 of 5

Where shall we send your solar report?

We'll send your full savings report and a no-obligation installation quote

First Name *

Last Name *

Email Address *

Phone Number *

Property Postcode *

Your details are protected under our Privacy Policy. We'll only use them to send your solar report and follow up with your installation quote.

⚠ Please fill in all required fields correctly.

Estimated Annual Saving

Annual solar generation

Self-consumed (not bought)

Exported & earned via SEG

Bill reduction per year

SEG export earnings/yr

Estimated payback period

Full Financial Breakdown

System Costs

Solar panel system

Battery storage

Total investment

Annual Returns

Bill savings (self-consumption)

SEG export earnings

Total annual return

Long-term Returns

Payback period

10-year net profit

25-year net profit

Cumulative Return Over Time

Your Property Suitability Assessment

Get a Free Solar Survey from CT Electrical

Our MCS accredited surveyors will visit your property, assess your roof, confirm your savings estimate and provide a fixed-price installation quote. No obligation — completely free.