Solar explained to clever people by people who are not trying to be clever

Solar Panels in BT68 (Mid Ulster)

See if solar pays off for you in Mid Ulster — price, savings and payback in under a minute (official UK data).

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
38.6 years
After this, it's pure profit
Upfront Cost
£12,207
What you pay to get started
Annual Benefit
£316
What you save every year
Profit Over 25 Years
£-4,304
After paying itself off, you're this much ahead

Ready to Get Started?

Get your free quote from Blue Ape Renewables. They'll connect you with MCS-certified installers in your area and handle all the paperwork.

Get Solar Quote →
4.8★ Trustpilot • Octopus Energy trusted partner • MCS certified • No obligation
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: Bigger systems don’t shorten payback—cost and savings rise together per kW.
  • 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

Costs: Battery prices are typically £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

Read the full story

A typical roof here lands around 6.0 kW, with most eligible homes comfortably fitting within 3–6 kW. Each kilowatt of panels produces roughly 878 kWh per year on a south-facing roof. We value self-used electricity at 0.0p and exported surplus at a baseline 10p via SEG. Use the calculator above for your exact tariff.

Unit rate
0.0p/kWh
Standing charge
0.0p/day
Sunshine yield (south)
878 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: £263, Upfront: £10,173, Break-even: 38.6 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1756 kWh 702 kWh 1054 kWh £0 £105 £105 £4,069 38.6 yrs £-1,962
3 kW 2634 kWh 1054 kWh 1581 kWh £0 £158 £158 £6,104 38.6 yrs £-2,942
4 kW 3512 kWh 1405 kWh 2107 kWh £0 £211 £211 £8,138 38.6 yrs £-3,923
5 kW 4390 kWh 1756 kWh 2634 kWh £0 £263 £263 £10,173 38.6 yrs £-4,904
6 kW 5269 kWh 2107 kWh 3161 kWh £0 £316 £316 £12,207 38.6 yrs £-5,885
7 kW 6147 kWh 2459 kWh 3688 kWh £0 £369 £369 £14,242 38.6 yrs £-6,866
8 kW 7025 kWh 2810 kWh 4215 kWh £0 £421 £421 £16,276 38.6 yrs £-7,846

Assumptions: south-facing, sensible tilt; self-use shares from site rules; export at 10p baseline. Costs: panels £/kW = 2,035, battery £/kWh = 700.

3 kWh battery 5 kW example → Annual benefit: £176, Upfront: £12,273, Break-even: 69.9 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1756 kWh 1054 kWh 702 kWh £0 £70 £70 £6,169 87.8 yrs £-4,764
3 kW 2634 kWh 1581 kWh 1054 kWh £0 £105 £105 £8,204 77.9 yrs £-6,096
4 kW 3512 kWh 2107 kWh 1405 kWh £0 £140 £140 £10,238 72.9 yrs £-7,428
5 kW 4390 kWh 2634 kWh 1756 kWh £0 £176 £176 £12,273 69.9 yrs £-8,760
6 kW 5269 kWh 3161 kWh 2107 kWh £0 £211 £211 £14,307 67.9 yrs £-10,092
7 kW 6147 kWh 3688 kWh 2459 kWh £0 £246 £246 £16,342 66.5 yrs £-11,424
8 kW 7025 kWh 4215 kWh 2810 kWh £0 £281 £281 £18,376 65.4 yrs £-12,756

Assumptions: south-facing, sensible tilt; self-use shares from site rules; export at 10p baseline. Costs: panels £/kW = 2,035, battery £/kWh = 700.

5 kWh battery 5 kW example → Annual benefit: £132, Upfront: £13,673, Break-even: 103.8 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1756 kWh 1229 kWh 527 kWh £0 £53 £53 £7,569 143.7 yrs £-6,515
3 kW 2634 kWh 1844 kWh 790 kWh £0 £79 £79 £9,604 121.5 yrs £-8,023
4 kW 3512 kWh 2459 kWh 1054 kWh £0 £105 £105 £11,638 110.4 yrs £-9,531
5 kW 4390 kWh 3073 kWh 1317 kWh £0 £132 £132 £13,673 103.8 yrs £-11,038
6 kW 5269 kWh 3688 kWh 1581 kWh £0 £158 £158 £15,707 99.4 yrs £-12,546
7 kW 6147 kWh 4303 kWh 1844 kWh £0 £184 £184 £17,742 96.2 yrs £-14,054
8 kW 7025 kWh 4917 kWh 2107 kWh £0 £211 £211 £19,776 93.8 yrs £-15,561

Assumptions: south-facing, sensible tilt; self-use shares from site rules; export at 10p baseline. Costs: panels £/kW = 2,035, battery £/kWh = 700.

7.5 kWh battery 5 kW example → Annual benefit: £119, Upfront: £15,423, Break-even: 130.1 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1756 kWh 1282 kWh 474 kWh £0 £47 £47 £9,319 196.5 yrs £-8,371
3 kW 2634 kWh 1923 kWh 711 kWh £0 £71 £71 £11,354 159.6 yrs £-9,931
4 kW 3512 kWh 2564 kWh 948 kWh £0 £95 £95 £13,388 141.2 yrs £-11,491
5 kW 4390 kWh 3205 kWh 1185 kWh £0 £119 £119 £15,423 130.1 yrs £-13,052
6 kW 5269 kWh 3846 kWh 1423 kWh £0 £142 £142 £17,457 122.7 yrs £-14,612
7 kW 6147 kWh 4487 kWh 1660 kWh £0 £166 £166 £19,492 117.4 yrs £-16,172
8 kW 7025 kWh 5128 kWh 1897 kWh £0 £190 £190 £21,526 113.5 yrs £-17,733

Assumptions: south-facing, sensible tilt; self-use shares from site rules; export at 10p baseline. Costs: panels £/kW = 2,035, battery £/kWh = 700.

10 kWh battery 5 kW example → Annual benefit: £110, Upfront: £17,173, Break-even: 156.5 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1756 kWh 1317 kWh 439 kWh £0 £44 £44 £11,069 252.1 yrs £-10,191
3 kW 2634 kWh 1976 kWh 659 kWh £0 £66 £66 £13,104 199.0 yrs £-11,786
4 kW 3512 kWh 2634 kWh 878 kWh £0 £88 £88 £15,138 172.4 yrs £-13,382
5 kW 4390 kWh 3293 kWh 1098 kWh £0 £110 £110 £17,173 156.5 yrs £-14,977
6 kW 5269 kWh 3951 kWh 1317 kWh £0 £132 £132 £19,207 145.8 yrs £-16,573
7 kW 6147 kWh 4610 kWh 1537 kWh £0 £154 £154 £21,242 138.2 yrs £-18,168
8 kW 7025 kWh 5269 kWh 1756 kWh £0 £176 £176 £23,276 132.5 yrs £-19,764

Assumptions: south-facing, sensible tilt; self-use shares from site rules; export at 10p baseline. Costs: panels £/kW = 2,035, battery £/kWh = 700.

13.5 kWh battery 5 kW example → Annual benefit: £101, Upfront: £19,623, Break-even: 194.3 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1756 kWh 1352 kWh 404 kWh £0 £40 £40 £13,519 334.7 yrs £-12,711
3 kW 2634 kWh 2028 kWh 606 kWh £0 £61 £61 £15,554 256.7 yrs £-14,342
4 kW 3512 kWh 2705 kWh 808 kWh £0 £81 £81 £17,588 217.7 yrs £-15,972
5 kW 4390 kWh 3381 kWh 1010 kWh £0 £101 £101 £19,623 194.3 yrs £-17,603
6 kW 5269 kWh 4057 kWh 1212 kWh £0 £121 £121 £21,657 178.7 yrs £-19,234
7 kW 6147 kWh 4733 kWh 1414 kWh £0 £141 £141 £23,692 167.6 yrs £-20,864
8 kW 7025 kWh 5409 kWh 1616 kWh £0 £162 £162 £25,726 159.2 yrs £-22,495

Assumptions: south-facing, sensible tilt; self-use shares from site rules; export at 10p baseline. Costs: panels £/kW = 2,035, 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.

Your Area at a Glance

Your Electricity Rate
0.00p/kWh
Daily Fixed Charge
0.00p/day
Local Sunshine
878kWh/kW
A 1 kW system generates ~878 kWh per year. A typical home uses ~2,700 kWh per year.
Typical System Size
6.0kW
For houses & bungalows in this area

Local Property Data

Property Types

No EPC data available for this outcode

Coverage

Mid Ulster (98%)|Armagh City, Banbridge and Craigavon (2%)

Areas Covered

Caledon, Navan

Data Sources & Assumptions

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

Electricity rates: Ofgem price cap, Q4 2025

Installation costs: MCS certified installer data, March 2025

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.