Solar export in Dumfries and Galloway
Quick answer
What can solar panels export in Dumfries and Galloway?
Dumfries averages around 835 kWh per kWp a year, so a 4kW system could generate about 3,340 kWh. Across this largely rural region, many homes and farms have open, unshaded roofs. SP Energy Networks runs the local grid, and you earn export payments by signing up to a supplier's Smart Export Guarantee tariff.
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Covering Dumfries, Annan, Castle Douglas, Kirkcudbright, Newton Stewart, Stranraer and nearby.
Rural homes, farms and the Solway coast
Dumfries and Galloway covers a large area from the Solway coast to the Galloway Hills, with towns such as Dumfries, Annan, Castle Douglas, Kirkcudbright, Newton Stewart and Stranraer. Many rural homes are not on the mains gas network and rely on electricity or oil, so how much solar power you use at home matters as much as what you export.
Livestock and dairy farms across the region often have large shed roofs facing in useful directions. Kirkcudbright and several other town centres include conservation areas, so check with Dumfries and Galloway Council if your home is in one. Remote properties at the end of long lines may face export limits.
Local generation estimate for Dumfries
Using PVGIS data and the MCS MIS 3002 method, Dumfries averages about 835 kWh per kWp a year. A 4kW system would produce around 3,340 kWh. If about 65% is exported, that is roughly 2,171 kWh a year sent to the grid. These are estimates, not a promise of income, and what you are paid depends on your supplier's export rate. Your own figure depends on roof direction, pitch, shading and how much electricity you use at home.
Connecting to the grid in Dumfries & Galloway
The local electricity network here is run by SP Energy Networks (SPEN). Most home systems up to 3.68kW per phase are notified under G98 after installation. Larger systems, or a battery that takes total inverter capacity above that limit, need a G99 application before connection. Our installation partner handles this paperwork for you.
Choosing an export tariff
Export payments come from your electricity supplier under the Smart Export Guarantee (SEG), not from the network operator. Suppliers set their own rates and change them often. Published rates by supplier:
- Octopus Outgoing (12p/kWh)
- E.ON Next (12p/kWh)
- British Gas (9p/kWh)
- Scottish Power (8p/kWh)
Rates change, check the supplier. Last checked August 2026.
Suppliers ask for an MCS certificate before paying for exports. We install through MCS-certified partners, so your system comes with the paperwork suppliers need.
Neighbouring areas
Useful pages
Solar export questions in Dumfries & Galloway
Do rural homes in Galloway have any grid limits for solar?
Some remote properties sit at the end of long rural lines with limited capacity. SP Energy Networks may set an export limit for larger systems, which your installer checks during the application.
Who is the network operator in Dumfries and Galloway?
SP Energy Networks. Most home systems are notified under G98, and larger systems need a G99 application before they are connected.
Can a battery help a rural home in Dumfries and Galloway?
A battery stores surplus solar for use in the evening, which can suit homes that rely on electricity. Our solar and battery comparison explains the difference in plain English.
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