One of the most practical ways for Scottish businesses to fund solar PV installations is through Business Energy Scotland (BES). Acting on behalf of the Scottish Government, BES offers interest-free loans & cashback grants to make renewable energy adoption easier for SMEs & larger organisations.
This guide explains how BES loans & grants work, eligibility requirements, how to apply, & how these incentives fit into a broader solar investment strategy.
Business Energy Scotland (BES) is a government-backed programme providing free energy efficiency advice, interest-free finance, & financial incentives to businesses, charities, & public sector organisations in Scotland.
It replaced the Energy Saving Trust’s SME Loan Scheme & continues Scotland’s commitment to Net-Zero targets by supporting renewable adoption.
0% interest loans up to £100,000
Up to £20,000 cashback grants for eligible projects
Covers a wide range of energy-saving measures, including:
Solar PV
Battery storage
LED lighting
Heat pumps & insulation
Solar PV has a relatively high upfront cost compared to other efficiency measures. BES helps businesses overcome this barrier by:
Removing loan interest (true cost = equipment price only)
Providing cashback grants, reducing effective system cost
Allowing repayment from energy bill savings
This makes solar a cashflow-friendly investment for SMEs & capital-limited businesses.
Maximum Loan Amount: £100,000
Repayment Term: Up to 8 years
Interest Rate: 0% fixed
Minimum Project Value: Usually £2,000
Loans can cover:
Solar panels
Inverters & batteries
Installation & design fees
Up to £20,000 cashback available
Percentage varies based on technology:
Solar PV typically 30–40% cashback
Higher cashback often for combined efficiency measures
Only available alongside BES loans (not standalone grants)
Example:
50 kW system = £60,000
BES Loan: £60,000
Cashback Grant: £18,000
Effective Net Cost: £42,000
To qualify for BES solar funding, businesses must:
Be based in Scotland
Operate as an SME, charity, or non-profit (some larger firms may also qualify)
Demonstrate project will cut energy use or carbon emissions
Complete an Energy Efficiency Assessment (provided free by BES)
Conducted by Ecoaim
Identifies best carbon-reduction opportunities
Required for loan & cashback approval
Include project proposal, installer quotes, & energy savings data
Review time: 2–6 weeks
Approval subject to credit checks & assessment results
Work with Ecoaim, an MCS-certified installer
BES funding paid on completion & invoice submission
✅ No interest costs – repay only what you borrow
✅ Cashback grant lowers net project cost
✅ Fast ROI – solar savings often exceed repayments
✅ Supports sustainability & Net-Zero goals
✅ Works for a wide range of sectors – from retail to agriculture
❌ Loan cap of £100,000 may be too low for very large projects
❌ Cashback grant not guaranteed—subject to fund availability
❌ Application process requires energy assessment (adds time)
❌ Not suitable for businesses wanting third-party PPAs instead of ownership
System Size: 100 kW rooftop solar PV
System Cost: £90,000
BES Loan Approved: £90,000 (8 years at 0%)
Cashback Grant Awarded: £18,000
Net Cost: £72,000
Annual Savings:
Energy bill reduction = £22,500
SEG income = £3,000
Loan repayment = £11,250/year
Net Positive Cashflow from Year 1: +£14,250
BES loans & grants can be combined with:
Non-Domestic Rates Relief (no tax increase from solar)
AIA Capital Allowances (tax savings on investment)
Smart Export Guarantee (SEG) (export income)
This “stacking” strategy maximises returns & accelerates payback.
Apply early – cashback grants are limited & first-come-first-served
Bundle projects – combine solar with lighting, heating, or insulation to maximise grant percentage
Use BES assessment as leverage – funding is more likely when carbon savings are clearly documented
Size your system smartly – stay within the £100k cap for full loan coverage
Business Energy Scotland loans & cashback grants are a game-changer for SMEs considering solar PV. By eliminating interest costs & providing upfront cashback, they transform solar from a capital-heavy project into a cash-positive investment from day one.
Next Step: Learn how local councils & enterprise agencies can further support your project in Local Authority & Regional Solar Grants.
