A typical battery retrofit takes one day to install and two to four weeks from enquiry to switch-on, including a free site survey, MCS-certified design, and DNO notification — all managed by us.
FROM ENQUIRY TO SWITCH-ON
How a solar battery upgrade works
The process starts with a free enquiry and site survey at your home in Scotland. You then receive a detailed design with exact figures. Installation typically takes one day for a battery, with the full process from enquiry to switch-on usually taking two to four weeks depending on your local electricity network.
A typical battery upgrade takes one day to install. The whole process — from your first call to a working system — runs two to four weeks including the survey, design, and DNO notification. Here is every step.
Source: process described by our installation partner Home Heating Services (Scotland) Ltd. Timescales are typical, not guaranteed.
- STEP 01
What happens when you enquire?
Fill in the quiz or call us. We ask about your system, property, and goals — you will hear back the same working day.
Fill in the quiz or call us. We ask about your existing system, property, and what you want to achieve. Takes two minutes.
You will hear back the same working day — usually within a couple of hours.
- STEP 02
What happens at the free site survey?
An MCS-certified engineer visits free of charge to inspect your roof, panels, inverter, consumer unit, and cable routes.
An MCS-certified engineer visits your property to inspect your roof, existing panels, inverter, consumer unit and cable routes.
The survey is free with no obligation. We photograph everything and take measurements for the design.
- STEP 03
How do you get your design and exact figures?
You receive a written proposal with the recommended system, the actual installed price, and illustrative annual figures with assumptions shown.
You receive a written proposal with the recommended system, the installed price (not a guide — the actual price), and illustrative annual savings with the assumptions shown.
If a grant or loan applies, we show the net cost after funding. No hidden extras.
- STEP 04
What is the DNO notification?
We handle the G98 or G99 application to your Distribution Network Operator — SPEN or SSEN depending on your area.
We handle the G98 or G99 application to your Distribution Network Operator (SPEN in central/south Scotland, SSEN in the north and Highlands).
G98 (under 3.68 kW export) is a simple notification. G99 (above 3.68 kW) requires approval and may take 4–8 weeks. We manage the whole process.
- STEP 05
Do you need a building warrant?
Most domestic installations do not need one. If yours does — for example, listed buildings — we arrange it before work begins.
Most domestic installations do not need a building warrant. If yours does — for example, listed buildings or certain structural work — we arrange it.
Conservation-area and listed-building consent is handled before any work begins.
- STEP 06
How long does installation take?
Battery only: typically one day. Full system replacement: two to three days. All work is MCS-certified and TrustMark-approved.
Carried out by Home Heating Services (Scotland) Ltd (SC484353), our MCS-registered installation partner. Battery only: 1 day. Full system: 2–3 days.
All work is TrustMark-approved (3559930) and carries an insurance-backed guarantee.
- STEP 07
What happens at commissioning and handover?
The system is tested, registered with MCS, and you receive a handover pack with certificates, warranty documents, and monitoring setup.
The system is commissioned, tested, and registered with MCS. You receive a handover pack with your MCS certificate, warranty documents, monitoring setup, and user guide.
We walk you through the monitoring app and make sure you can see your generation and battery state.
- STEP 08
What aftercare do you get?
Monitoring alerts, warranty support, annual performance checks, and one phone number to call if anything needs attention.
We are here after the install. Monitoring alerts, warranty support, and annual performance checks are included. One number to call if anything needs attention.
Complaints route: speak to us first, then TrustMark ADR if you are not satisfied.
You might also find useful
- → Guarantees — workmanship, manufacturer warranties, and insurance-backed protection
- → Grants — full breakdown of HES two-stream funding for Scottish homeowners
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