Solar PV Cost Calculator | Depth of Light

What's your monthly energy bill?

This helps us estimate your system size and savings

Monthly Bill (GBP) £150

Roof Orientation

South

SW

SE

East/West

North

Roof Pitch

Flat

0–10°
Flat/low-slope roof

Low

10–25°
Shallow pitched roof

Standard

25–45°
Most UK homes

Steep

45°+
Very steep pitch

Choose your installation type

Both options are fully scaffolded and installed professionally

On-Roof

Panels mounted on aluminium rails above your existing roof tiles

✓ Bird & pest protection included

In-Roof

Panels replace roof tiles for a seamless, sleek appearance

✓ Sleek integrated finish

What type of system?

Choose between solar only or solar with battery storage

☀️

PV Only (String)

Solar panels without battery storage. Export excess power to the grid.

🔋

With Battery (Hybrid)

Solar panels plus battery storage. Use your solar power in the evening.

Choose your inverter

The inverter converts solar DC to AC power for your home

Fox ESS

Proven reliability, competitive pricing

Leading global inverter manufacturer with excellent UK track record.

SiGenergy

Premium smart energy management

Advanced AI-driven system with intuitive app and real-time monitoring.

Choose battery size

We've suggested a size based on your system, but you can choose

Select your panel brand

Both brands are excellent. Aiko offers slightly higher efficiency.

Trina Solar

Reliable, high-performance panels from one of the world's largest manufacturers.

450W • 21.3% efficiency
25-year performance warranty

Aiko Solar

Premium N-type ABC technology with industry-leading efficiency.

465W • 23.6% efficiency
30-year performance warranty

How many panels?

Select the number of panels for your system

Add optional extras

Enhance your system with these popular upgrades

Zappi Glo Charger

Smart EV charging that uses your excess solar

+£1,000

Manual Changeover Switch

Run essential appliances during power cuts

+£500

Automatic Changeover Switch

Automatic backup power during grid outages

+£900

Tigo TS4 Optimisers

Per-panel optimisers by Tigo Energy — maximise output and enable per-panel monitoring

+£35/panel

Tigo CCA & TAP Unit

Required gateway unit for Tigo optimiser systems — one per installation

+£450

YOUR QUOTE

System Price £0

Add-ons Total £0

TOTAL PRICE £0

System Size

0 kW

Est. Annual Generation

0 kWh

Est. Annual Savings

£0

Note: All prices include zero rated VAT and scaffolding. On-roof installations also include bird & pest protection. Prices are for materials and labour.

Get Your Free Quote

Your Selected System

System Size

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Installation Type

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System Type

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Panels

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Panel Brand

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Inverter

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Battery

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Add-ons