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Solar panel cost in Darlington (DL1)

See realistic solar installation costs, savings and payback for DL1 (Darlington) in under a minute using official UK data. Start with the calculator, then get a no-obligation quote from an MCS-certified installer. You can also ask the SolarByPostcode assistant to sanity-check your roof, bills and plans.

Solar Calculator

Change the settings below to see how costs and savings work for your situation.

System Size

Roof Direction

Battery Storage

Export Value

Your Numbers

Break-even
12.5 years
After this, it's pure profit
Upfront Cost
£7,307
What you pay to get started
Annual Benefit
£587
What you save every year
Profit Over 25 Years
£7,356
After paying itself off, you're this much ahead

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How we calculate this

Solar generation: Based on typical south-facing roof at 35° angle. We account for weather, dirt, and system losses (14%).

How much you'll use directly:

  • Without battery: You'll use about 40% of what you generate. The rest gets sold back to the grid.
  • With 5 kWh battery: You'll use about 70% (battery stores extra for evening use).
  • With 10 kWh battery: You'll use about 75% (more storage means less exported).
  • Panel-only payback: The official cost per kW is lower above 4 kW, so a 5–6 kW system can pay back a little faster than a 3–4 kW system on otherwise identical assumptions.
  • Battery & payback: Batteries raise self-use and cut bills, but added hardware cost often lengthens break-even at typical UK rates.
  • When a battery can still make sense:
    • Evening-heavy usage patterns
    • Time-of-use tariffs / cheap night rates
    • Low export rate vs. high unit rate
    • Heat pump or EV charging synergy
    • Optional backup/resilience (system-dependent)
    • Lower evening-hour CO₂ vs. grid

Panel costs: Uses March 2026 TIC mean installation costs: £1,827/kW up to 4 kW and £1,628/kW above 4 kW.

Other costs: Battery prices are modelled at £700 per kWh. Export tariffs vary by supplier (usually 5–15p per kWh).

Grid connection: Systems up to about 3.7 kW typically need just a notification (G98). Larger systems may need permission (G99).

These are typical values based on average usage patterns. Your actual results will vary based on your roof, shading, and how you use electricity.

Your area in context

In Northern, the current unit rate is 25.22p/kWh with a 64.29p/day standing charge. Your postcode’s south-facing sunshine yield is 911 kWh/kW — 14 below the regional median (926).

Read the full story

A typical roof here lands around 4.0 kW, with most eligible homes comfortably fitting within 3–6 kW. Each kilowatt of panels produces roughly 911 kWh per year on a south-facing roof. We value self-used electricity at 25.2p and exported surplus at a baseline 10p via SEG. Use the calculator above for your exact tariff.

Unit rate
25.2p/kWh
Standing charge
64.3p/day
Sunshine yield (south)
911 kWh/kW
Export price (baseline)
10p/kWh

Browse the scenarios below. Each battery size has its own expand — open the one that matches your plan (or just explore). For each system size (2–8 kW) we show annual output, how much you use directly, what gets exported, annual benefit, upfront cost, break-even, and a 20-year net. Negative numbers are possible — that’s the honest trade-off when adding more battery than your usage profile justifies.

No battery 5 kW example → Annual benefit: £733, Upfront: £9,134, Break-even: 12.5 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1823 kWh 729 kWh 1094 kWh £184 £109 £293 £3,654 12.5 yrs £2,212
3 kW 2734 kWh 1094 kWh 1641 kWh £276 £164 £440 £5,481 12.5 yrs £3,317
4 kW 3646 kWh 1458 kWh 2187 kWh £368 £219 £587 £7,307 12.5 yrs £4,423
5 kW 4557 kWh 1823 kWh 2734 kWh £460 £273 £733 £9,134 12.5 yrs £5,529
6 kW 5469 kWh 2187 kWh 3281 kWh £552 £328 £880 £10,961 12.5 yrs £6,635
7 kW 6380 kWh 2552 kWh 3828 kWh £644 £383 £1,026 £12,788 12.5 yrs £7,741
8 kW 7292 kWh 2917 kWh 4375 kWh £736 £437 £1,173 £14,615 12.5 yrs £8,846

Assumptions: south-facing, sensible tilt; self-use shares from site rules; export at 10p baseline. Costs: panels £/kW = 1,827, battery £/kWh = 700.

3 kWh battery 5 kW example → Annual benefit: £872, Upfront: £11,234, Break-even: 12.9 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1823 kWh 1094 kWh 729 kWh £276 £73 £349 £5,754 16.5 yrs £1,221
3 kW 2734 kWh 1641 kWh 1094 kWh £414 £109 £523 £7,581 14.5 yrs £2,882
4 kW 3646 kWh 2187 kWh 1458 kWh £552 £146 £698 £9,407 13.5 yrs £4,543
5 kW 4557 kWh 2734 kWh 1823 kWh £690 £182 £872 £11,234 12.9 yrs £6,203
6 kW 5469 kWh 3281 kWh 2187 kWh £828 £219 £1,046 £13,061 12.5 yrs £7,864
7 kW 6380 kWh 3828 kWh 2552 kWh £965 £255 £1,221 £14,888 12.2 yrs £9,525
8 kW 7292 kWh 4375 kWh 2917 kWh £1,103 £292 £1,395 £16,715 12.0 yrs £11,186

Assumptions: south-facing, sensible tilt; self-use shares from site rules; export at 10p baseline. Costs: panels £/kW = 1,827, battery £/kWh = 700.

5 kWh battery 5 kW example → Annual benefit: £941, Upfront: £12,634, Break-even: 13.4 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1823 kWh 1276 kWh 547 kWh £322 £55 £376 £7,154 19.0 yrs £376
3 kW 2734 kWh 1914 kWh 820 kWh £483 £82 £565 £8,981 15.9 yrs £2,314
4 kW 3646 kWh 2552 kWh 1094 kWh £644 £109 £753 £10,807 14.4 yrs £4,253
5 kW 4557 kWh 3190 kWh 1367 kWh £805 £137 £941 £12,634 13.4 yrs £6,191
6 kW 5469 kWh 3828 kWh 1641 kWh £965 £164 £1,129 £14,461 12.8 yrs £8,129
7 kW 6380 kWh 4466 kWh 1914 kWh £1,126 £191 £1,318 £16,288 12.4 yrs £10,067
8 kW 7292 kWh 5104 kWh 2187 kWh £1,287 £219 £1,506 £18,115 12.0 yrs £12,005

Assumptions: south-facing, sensible tilt; self-use shares from site rules; export at 10p baseline. Costs: panels £/kW = 1,827, battery £/kWh = 700.

7.5 kWh battery 5 kW example → Annual benefit: £962, Upfront: £14,384, Break-even: 15.0 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1823 kWh 1331 kWh 492 kWh £336 £49 £385 £8,904 23.1 yrs £-1,207
3 kW 2734 kWh 1996 kWh 738 kWh £503 £74 £577 £10,731 18.6 yrs £814
4 kW 3646 kWh 2661 kWh 984 kWh £671 £98 £770 £12,557 16.3 yrs £2,835
5 kW 4557 kWh 3327 kWh 1230 kWh £839 £123 £962 £14,384 15.0 yrs £4,857
6 kW 5469 kWh 3992 kWh 1477 kWh £1,007 £148 £1,154 £16,211 14.0 yrs £6,878
7 kW 6380 kWh 4657 kWh 1723 kWh £1,175 £172 £1,347 £18,038 13.4 yrs £8,900
8 kW 7292 kWh 5323 kWh 1969 kWh £1,342 £197 £1,539 £19,865 12.9 yrs £10,921

Assumptions: south-facing, sensible tilt; self-use shares from site rules; export at 10p baseline. Costs: panels £/kW = 1,827, battery £/kWh = 700.

10 kWh battery 5 kW example → Annual benefit: £976, Upfront: £16,134, Break-even: 16.5 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1823 kWh 1367 kWh 456 kWh £345 £46 £390 £10,654 27.3 yrs £-2,846
3 kW 2734 kWh 2051 kWh 684 kWh £517 £68 £586 £12,481 21.3 yrs £-769
4 kW 3646 kWh 2734 kWh 911 kWh £690 £91 £781 £14,307 18.3 yrs £1,307
5 kW 4557 kWh 3418 kWh 1139 kWh £862 £114 £976 £16,134 16.5 yrs £3,384
6 kW 5469 kWh 4101 kWh 1367 kWh £1,034 £137 £1,171 £17,961 15.3 yrs £5,461
7 kW 6380 kWh 4785 kWh 1595 kWh £1,207 £160 £1,366 £19,788 14.5 yrs £7,538
8 kW 7292 kWh 5469 kWh 1823 kWh £1,379 £182 £1,561 £21,615 13.8 yrs £9,615

Assumptions: south-facing, sensible tilt; self-use shares from site rules; export at 10p baseline. Costs: panels £/kW = 1,827, battery £/kWh = 700.

13.5 kWh battery 5 kW example → Annual benefit: £990, Upfront: £18,584, Break-even: 18.8 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1823 kWh 1404 kWh 419 kWh £354 £42 £396 £13,104 33.1 yrs £-5,185
3 kW 2734 kWh 2105 kWh 629 kWh £531 £63 £594 £14,931 25.1 yrs £-3,053
4 kW 3646 kWh 2807 kWh 839 kWh £708 £84 £792 £16,757 21.2 yrs £-921
5 kW 4557 kWh 3509 kWh 1048 kWh £885 £105 £990 £18,584 18.8 yrs £1,212
6 kW 5469 kWh 4211 kWh 1258 kWh £1,062 £126 £1,188 £20,411 17.2 yrs £3,344
7 kW 6380 kWh 4913 kWh 1467 kWh £1,239 £147 £1,386 £22,238 16.0 yrs £5,476
8 kW 7292 kWh 5614 kWh 1677 kWh £1,416 £168 £1,584 £24,065 15.2 yrs £7,609

Assumptions: south-facing, sensible tilt; self-use shares from site rules; export at 10p baseline. Costs: panels £/kW = 1,827, battery £/kWh = 700.

Figures are illustrative and use the same method as the calculator above. For exact results, adjust your roof direction, tariff, and usage in the calculator.

Before you request quotes in Darlington

Use the numbers above to sanity-check installer quotes. The main things to compare are system size, battery assumptions, payback claims, MCS certification, DNO paperwork and export assumptions.

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Check what MCS certification means

Understand DNO, G98 and G99 export limits

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This is a practical sanity-check request, not an instant quote promise. The Blue Ape quote route above remains available if you already want installer introductions.

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Insights for DL1

Figures below are tailored to DL1 — click through for full league tables.

Big-Roof Britain Rank #1729 of 2182
4.5 kWp (UK avg 5.1 kWp)
~9 panels (≈430 W)
Solar Payback Index Rank #2713 of 2996
12.5 years (UK avg 10.8 years)
~£586 /yr • £7,307 upfront
Standing-Charge Drag Rank #2856 of 2996
40.1% (UK avg 26.6%) drag on savings
£235 fixed • ~£586 /yr value
Aspect Penalty View ranking →
East −21.6% West −21.0%
Typical output loss versus a south-facing roof (lower is better)

Seasonal solar output in DL1

Monthly generation per kilowatt of solar panels

kWh 33 Jan 47 Feb 81 Mar 105 Apr 116 May 110 Jun 114 Jul 102 Aug 83 Sep 56 Oct 38 Nov 28 Dec
Best month Worst month Winter (Dec–Feb) Other months

Winter output: 47.1% of an average month (Dec–Feb)

Best / worst month: May / Dec

These figures show output per kilowatt (kW) of panels installed. In winter, a 1 kW system here produces about 36 kWh per month; the average month produces around 76 kWh. So a typical 4 kW home system would generate roughly 143 kWh in winter, or 304 kWh in an average month.

Your Area at a Glance

Your Electricity Rate
25.22p/kWh
Daily Fixed Charge
64.29p/day
Local Sunshine
911kWh/kW
A 1 kW system generates ~911 kWh per year. A typical home uses ~2,700 kWh per year.
Typical System Size
4.0kW
For houses & bungalows in this area

Local Property Data

Property Types

Houses: 73% • Flats: 20% • Bungalows: 6% Based on 15,246 properties

Coverage

Darlington (100%)

Areas Covered

Park East, Bank Top & Lascelles, Stephenson, Haughton & Springfield, Red Hall & Lingfield, Eastbourne, North Road, Whinfield + 4 more

Data Sources & Assumptions

Solar yield: PVGIS (EU Joint Research Centre), January 2025 data

Electricity rates: Ofgem price cap, Q3 2026

Installation costs: DESNZ/MCS data, March 2026 (TIC)

Property data: EPC open data (Open Government Licence), aggregated

All estimates are typical values. Actual results vary based on your specific situation, roof characteristics, and usage patterns.

Compare nearby areas

Nearby in Northern

DL2 (Darlington)
≈0.5 km away
Local sunshine: ~922 kWh/kWp · +1% vs DL1
DL98 (Darlington)
≈1.0 km away
Local sunshine: ~912 kWh/kWp · +0% vs DL1
DL3 (Darlington)
≈1.5 km away
Local sunshine: ~924 kWh/kWp · +1% vs DL1
DL5 (County Durham)
≈10.6 km away
Local sunshine: ~923 kWh/kWp · +1% vs DL1
TS16 (Stockton-on-Tees)
≈12.4 km away
Local sunshine: ~920 kWh/kWp · +1% vs DL1
DL4 (County Durham)
≈13.6 km away
Local sunshine: ~915 kWh/kWp · +0% vs DL1

Similar sunshine across the UK

S36 (Barnsley)
~911 kWh/kWp · +0% vs DL1
DD3 (Dundee City)
~911 kWh/kWp · -0% vs DL1
EH35 (East Lothian)
~911 kWh/kWp · -0% vs DL1