How Much Do Solar Panels Cost in Hertfordshire? (2026)

Overview

Solar panel costs in Hertfordshire typically range from £5,000 to £14,000 depending on system size, property type, and whether you include battery storage. This guide provides accurate, up-to-date pricing specific to Hertfordshire homeowners.

Average Solar Panel Costs by System Size

System Size

Number of Panels

Typical Cost

Best For

3kW	8 panels	£5,000-£6,500	2-bed flats/terraces
4kW	10 panels	£6,000-£7,500	3-bed semis
5kW	12-14 panels	£7,000-£9,000	3-4 bed detached
6kW	15-16 panels	£8,000-£10,000	4-bed detached
8-10kW	20-25 panels	£10,000-£14,000	Large homes/high usage

Costs by Hertfordshire Town

Solar panel costs can vary slightly across Hertfordshire based on local factors:

St Albans

• Average cost: £6,500-£9,000
• Higher due to conservation area requirements
• Many Victorian properties need specialist mounting

Watford

• Average cost: £6,000-£8,500
• Good value due to newer housing stock
• Urban shading may require microinverters (+£800)

Hemel Hempstead

• Average cost: £5,800-£8,000
• Post-war housing has excellent roof structures
• Commercial rates from £15,000 for businesses

Welwyn Garden City

• Average cost: £7,000-£10,000
• EMS consent requirement adds admin time
• Rear-roof installations more common

What's Included in the Price?

A quality solar installation should include:

Equipment:

• Solar panels (tier 1 brands like Jinko, Trina, Canadian Solar)
• Inverter or microinverters
• Mounting system and fixings
• DC isolators and consumer unit

Services:

• Site survey and design
• Scaffolding
• DNO notification (G98/G99)
• MCS certification
• 10-year workmanship warranty

NOT typically included:

• Battery storage (add £4,000-£10,000)
• EV charger (add £800-£1,500)
• Roof repairs if needed

Adding Battery Storage

Battery storage costs in 2026:

Battery

Capacity

Cost

Best For

GivEnergy	5.2kWh	£4,000-£5,000	Budget option
GivEnergy All-in-One	13.5kWh	£7,500-£8,500	Most homes
Tesla Powerwall 3	13.5kWh	£9,000-£10,000	Premium choice

Combined system costs:

• 4kW solar + 5kWh battery: £10,000-£12,000
• 6kW solar + 10kWh battery: £14,000-£17,000

Finance Options

Most Hertfordshire installations offer:

• 0% finance over 12-24 months
• Low-rate loans (4-8% APR) over 5-10 years
• Cash discount typically 3-5% off

Example monthly payments for £8,000 system:

• 24 months 0%: £333/month
• 60 months 5% APR: £151/month

Return on Investment

With current electricity prices (34p/kWh):

System

Annual Savings

Payback Period

4kW (£7,000)	£850-£1,000	7-8 years
6kW (£9,000)	£1,100-£1,300	7-8 years
6kW + Battery (£15,000)	£1,400-£1,700	9-11 years

Getting the Best Price

1. Get 3-5 quotes from MCS-certified installers

2. Compare like-for-like - check panel brands and warranties

3. Avoid high-pressure sales - legitimate companies don't need them

4. Check reviews - local Google/Trustpilot reviews matter

5. Time your purchase - spring often has better availability

Conclusion

Hertfordshire homeowners can expect to pay £6,000-£10,000 for a quality solar installation that will save £800-£1,300 annually. With 25+ year lifespans, solar represents an excellent investment for most properties.

Ready for a personalised quote? Contact our Hertfordshire team for a free, no-obligation assessment.