Key facts
- 1Always verify an installer's MCS certificate number at mcscertified.com before signing
- 2Compare at least two or three quotes with the same system size and specification
- 3Solar, battery and heat pump each solve different problems — match the technology to your needs
- 4DNO notification (G98 or G99) should be included in your quote, not charged extra
- 5Interest-free credit up to £30,000, subject to status — never feel pressured to take finance
- 6All installations on this site are through MCS-certified partners
- 7Last updated: 28 October 2026
Last updated: 28 October 2026
Technology comparison table
Use this table to understand how solar, battery storage and heat pumps compare across the factors that matter most for Scottish homeowners.
| Factor | Solar | Battery | Heat pump |
|---|---|---|---|
| MCS certification | |||
| DNO notification (G98/G99) | |||
| Planning permission usually needed | |||
| Heat loss survey required | |||
| Radiator upgrades may be needed | |||
| Eligible for export payments | |||
| Reduces heating bills directly | |||
| Works without solar |
Last updated: October 2026. This table is a general guide — your surveyor can confirm what applies to your home.
Installer credentials checklist
Before you sign anything, use this checklist to verify that your installer is properly qualified. Every item should be confirmed in writing as part of your quote.
Red flags to watch for
A reputable installer will never pressure you or hide information. Watch for these warning signs:
- Pressure to sign on the day or claims of a "today only" discount.
- No MCS certificate number or reluctance to share it.
- Vague quotes without panel brands, inverter models or system size in kWp.
- No mention of DNO notification or G99 application where needed.
- Unwillingness to leave the quote with you to think about.
- Claims of specific savings figures without surveying your home first.
Which technology is right for you?
Choose solar if
You have a south-ish facing roof with little shading, use electricity during the day, and want to cut your electricity bills.
Choose battery if
You have solar and use electricity in the evening, or you are on a time-of-use tariff and want to shift consumption to cheaper hours.
Choose heat pump if
You heat your home with oil, LPG or electric storage heaters and want a lower-carbon alternative that delivers several units of heat per unit of electricity.
Combine technologies
Solar plus battery maximises self-consumption. Solar plus heat pump powers your heating from your roof. A survey models which combination works best.
Common questions
What should I ask a renewable energy installer in Scotland?
Ask for their MCS certificate number, consumer code membership, itemised cost breakdown, system specification with brands, expected annual generation, warranty terms, and confirmation that DNO notification is included. Verify the MCS number at mcscertified.com before signing anything.
How many quotes should I get before deciding?
We recommend comparing at least two or three quotes. Each quote should use the same system size and specification so you can compare like for like. Look for differences in panel and inverter brands, warranty length, and what is included versus excluded.
What is the biggest mistake homeowners make with solar in Scotland?
Choosing an installer based on price alone without checking MCS certification, warranty terms and aftercare. A cheaper quote that uses uncertified installers or lacks proper DNO notification can cost more long-term, especially if you cannot claim Smart Export Guarantee payments.
Should I add a battery at the same time as solar?
If you are out during the day and use electricity in the evening, yes. A battery installed with solar is often simpler and cheaper than retrofitting later. If you are home all day and use most of your solar as it generates, a battery adds less value. A survey models this for your usage.
Last updated: 28 October 2026 · Reviewed by the Scottish Energy Efficiency team