---
title: "Solar Installers in Portsmouth (PO1) | MCS Vetted"
description: "Vetted, MCS-accredited solar panel &amp; battery installers in Portsmouth (PO1). Free no-obligation quotes from local firms."
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---

MCS-accredited · Vetted local installers · Free no-obligation quotes  [0333 567 1183](tel:+443335671183)

[South East Solar Network ](/)

[Services](/services)[Areas](/areas)[Guides](/guides)[Calculators](/calculators)[About](/about)[Contact](/contact)

/

[0333 567 1183](tel:+443335671183)[Free Quote](/contact)

1.  [Home](/)/ 
2.  [Hampshire](/solar-installers-hampshire)/ 
3.  Portsmouth 

# Solar Installers in Portsmouth 

Portsmouth is one of the sunniest cities in mainland Britain and a strong residential solar market — particularly across Cosham, Drayton, Farlington and Southsea.

[Free Portsmouth quote](#quote)[Call 0333 567 1183](tel:+443335671183)

![Solar panel installation on a Portsmouth (PO1) home](/__l5e/assets-v1/f1c80cfa-053c-4755-a91f-cbcbc228b250/hero-solar-uk-home.jpg)

MCS-accredited  Vetted installers RECC · TrustMark 

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MCS Certified Installers RECC Consumer Code 0% VAT on Solar Up to 25-Year Warranty Finance From 0% APR Rated 4.9 / 5 on Reviews 

Jump to a section about Portsmouth 

## Solar panels in Portsmouth: a local intro

Portsmouth is one of the sunniest cities in mainland Britain and a strong residential solar market — particularly across Cosham, Drayton, Farlington and Southsea. Coastal-grade mounting is standard.

## Why solar works well in Portsmouth

Portsmouth records 1,800+ sunshine hours and 1,080-1,100 kWh/kWp annually.

## The benefits of solar panels

A modern [residential solar system](/services/solar-panel-installation) cuts your electricity bills from day one, insulates you against future energy-price rises, reduces carbon emissions, and (with the Smart Export Guarantee) pays you for any surplus power you send to the grid. With a 25-year panel performance warranty, you'll generate clean energy for two decades after the system has paid for itself. See our [are solar panels worth it](/guides/are-solar-panels-worth-it-uk) guide for the latest UK payback numbers.

## Solar battery storage

Adding [battery storage](/services/solar-battery-storage) to a Portsmouth solar install typically lifts self-consumption from around 35% to 75-85%, dramatically cutting the amount of expensive grid electricity you import in the evening. Combined with a smart tariff like Octopus Flux, a properly sized battery can save a further £400-£900 per year — typically paying back in 7-10 years.

## EV charger installation

More Portsmouth households now charge an electric vehicle from home than ever before. A solar-aware [EV charger](/services/ev-charger-installation) (Zappi, Hypervolt, Ohme) lets you fuel many of your summer miles from excess solar generation — effectively at 0 p/kWh.

## Typical property types in Portsmouth

Victorian terraces dominate Southsea, Eastney and central Portsmouth; 1930s semis and bungalows in Cosham and Drayton.

## Roof guidance for Portsmouth homes

The right panel layout for your Portsmouth (PO1) home depends on roof pitch, orientation and condition. Most South East roofs sit between 30° and 45°, which is close to ideal — within a few percent of optimum yield. East-west splits are not a problem either: they flatten your generation curve across the day, which actually pairs nicely with battery storage and EV charging. We'll check rafter spacing and tile condition before quoting; if your roof needs replacement within the next 5 years it usually makes sense to do that first, otherwise the system can be lifted and reset for a nominal fee. For slate, we use non-penetrating slate hooks rather than drilling through; for concrete or clay tile, we use micro-rail systems that distribute load across multiple rafters.

## Solar costs in Portsmouth

Standard 4 kWp installs from £6,500; bungalow installs often go larger for excellent value.

## Funding your install in Portsmouth

Residential solar, battery storage and solar-aware EV chargers in Portsmouth all qualify for 0% VAT under HMRC's Energy Saving Materials relief — that's an immediate ~20% saving baked into your quote, with no paperwork from you. Most of our installers also offer [interest-bearing finance](/services/solar-finance) from 3-10 years via Phoenix Financial Services or Propensio, with monthly repayments designed to be lower than the bill saving from day one. Low-income households across [Hampshire](/solar-installers-hampshire) may qualify for ECO4 grants towards solar where the home has an EPC rating of D or below; we can route eligible enquiries to an ECO4-registered partner.

## Expected savings in Portsmouth

Annual savings of £1,000-£1,700 typical; up to £2,000+ on larger bungalow installs.

## Seasonal generation in Portsmouth

A typical 4 kWp system in Portsmouth (PO1) generates roughly 60% of its annual output between April and September, with June and July alone often accounting for 25-28%. Mid-winter (December, January) yields are around a tenth of midsummer — usually 70-120 kWh per month from a 4 kWp array — which is why battery storage and a time-of-use import tariff matter so much for winter savings. Spring and early autumn tend to be the most pleasant months for self-consumption: long days, mild temperatures (panels actually generate slightly more efficiently at cooler temperatures), and household demand still high enough to use most of what you produce.

## Smart tariffs and SEG export in Portsmouth

Once your Portsmouth system is commissioned and your DNO has approved the G98 or G99 notification, you can apply for the Smart Export Guarantee with any licensed supplier — you do not have to stay with your current import supplier to export. The most popular choices in 2026 are Octopus Outgoing Fixed (15p/kWh flat), Octopus Flux (variable, designed for solar + battery households, peak export around 26p/kWh), and E.ON Next Export Exclusive (16.5p/kWh). If you don't have a battery, a flat-rate export tariff usually wins; if you do, a time-of-use tariff like Flux or Intelligent Octopus Flux typically delivers the highest annual revenue. Your installer will model both at quote stage.

## What the install process looks like in Portsmouth

Once you accept a quote, your Portsmouth installer files a Section 80 notification with the local council (a free notification, not a planning application), books your DNO notification (G98) or pre-approval (G99), and arranges scaffolding. Scaffolding usually goes up the day before fitting and stays for 5-7 working days. On install day itself, a 2-3 person team typically completes a 4-6 kWp roof in a single day. Battery and inverter commissioning, electrical certification (NICEIC or NAPIT) and handover happen on day two. You'll receive your MCS certificate, building-control notification (via the Competent Person scheme), electrical installation certificate and product warranty pack within 5 working days of commissioning.

## Aftercare and warranties on Portsmouth installs

Every system installed via our Portsmouth network is covered by a 25-year panel performance warranty (typically guaranteeing at least 84-87% output at year 25), a 10-12 year inverter warranty, a 10-year battery warranty (often with 70% capacity guaranteed at year 10), and a 12-year workmanship warranty backed by the IWA insurance product through RECC. If your matched installer ever ceased trading — extremely rare amongst our vetted network — the insurance backing means another firm would honour the workmanship cover. Annual remote [monitoring and maintenance](/services/solar-panel-maintenance) is included as standard; most issues are spotted before you'd notice them, and any on-roof [repairs](/services/solar-panel-repairs) are covered for the duration of the workmanship warranty.

## Why choose South East Solar Network

We match Portsmouth homeowners with vetted, MCS-accredited installers who have a track record in your postcode. We carry no sales targets, no commission pressure — just a free quote and an honest opinion. Every install is RECC-protected and carries a 12-year workmanship warranty. Read more [about how we vet installers](/about), or jump straight to a [free roof survey](/services/solar-surveys).

## Local touch: Portsmouth

Portsmouth City Council is supportive; coastal-grade A4 mounting standard.

Services

## Solar services in Portsmouth

[

### Solar Installation

MCS-certified solar PV installs across the South East.

View service

](/services/solar-panel-installation)[

### Battery Storage

Tesla, GivEnergy, Fox ESS and more — fully fitted, fully certified.

View service

](/services/solar-battery-storage)[

### Maintenance

Annual health checks that protect your investment.

View service

](/services/solar-panel-maintenance)[

### Repairs

Fast diagnosis and repair, any brand.

View service

](/services/solar-panel-repairs)[

### Commercial

Solar PV for businesses, warehouses, farms and public buildings.

View service

](/services/commercial-solar)[

### EV Chargers

Zappi, Hypervolt, Ohme, Andersen and more — OZEV-grade installs.

View service

](/services/ev-charger-installation)

Topic cluster

## Everything Portsmouth homeowners search for

[Solar Panels Portsmouth →](/services/solar-panel-installation)[Solar Panel Costs Portsmouth →](/services/solar-panel-installation)[Solar Battery Storage Portsmouth →](/services/solar-battery-storage)[Home Solar Portsmouth →](/services/solar-panel-installation)[EV Charger Installation Portsmouth →](/services/ev-charger-installation)[Solar Panel Maintenance Portsmouth →](/services/solar-panel-maintenance)[Solar Inverters Portsmouth →](/services/solar-inverters)[Commercial Solar Portsmouth →](/services/commercial-solar)[Solar Finance Portsmouth →](/services/solar-finance)[Solar Surveys Portsmouth →](/services/solar-surveys)[All services in this county](/solar-installers-hampshire)

Explore the topic

## Everything Portsmouth homeowners search for

Descriptive links across our calculators, guides, services and local installer areas — pick the next step that fits where you are.

Calculate

Run the numbers

-   [Solar savings & payback calculator Model annual bill savings and payback years ](/calculators)
-   [What size solar system do I need? Right-size your array to your usage ](/calculators)
-   [Battery storage ROI calculator See the extra savings a battery unlocks ](/calculators)
-   [EV home charging cost calculator Compare charging on solar vs the grid ](/calculators)

Services

Solar services in Portsmouth

-   [Solar Installation in Portsmouth MCS-certified solar PV installs across the South East. ](/services/solar-panel-installation)
-   [Battery Storage in Portsmouth Tesla, GivEnergy, Fox ESS and more — fully fitted, fully certified. ](/services/solar-battery-storage)
-   [Maintenance in Portsmouth Annual health checks that protect your investment. ](/services/solar-panel-maintenance)
-   [Repairs in Portsmouth Fast diagnosis and repair, any brand. ](/services/solar-panel-repairs)

Learn

Guides for Portsmouth homeowners

-   [Are Solar Panels Worth It in the UK in 2026? An honest, numbers-led look at solar economics, payback periods and RO ](/guides/are-solar-panels-worth-it-uk)
-   [Solar Panel Costs UK 2026: Real Prices, No Sales Spin What you should actually expect to pay for a residential solar system ](/guides/solar-panel-costs-uk)
-   [Solar Battery Costs UK 2026: Brands, Capacities, Payback What batteries cost in 2026, which brands lead, and how to size storag ](/guides/solar-battery-costs-uk)
-   [Solar Payback Period UK: 7-10 Years on Most Homes How to model solar payback honestly — and what drives it up or down. ](/guides/solar-payback-period-uk)

Nearby areas

More of the county

-   [All solar installers in the wider county Return to the Hampshire hub ](/solar-installers-hampshire)
-   [Solar installers in Kent Maidstone · Canterbury · Ashford ](/solar-installers-kent)
-   [Solar installers in Surrey Guildford · Woking · Cobham ](/solar-installers-surrey)
-   [Solar installers in West Sussex Worthing · Crawley · Horsham ](/solar-installers-west-sussex)

Reviews

## What Portsmouth homeowners say

Real feedback from homeowners we've matched with vetted MCS-accredited installers across the South East.

> "Honest advice on battery sizing — they actually talked us down from 13 kWh to 9.5 kWh and it's been perfect with Octopus Flux."

Dev P. · Maidstone

> "Felt like a referral from a friend rather than a sales call. Workmanship warranty paperwork all turned up properly."

Helen C. · Canterbury

> "The firm they matched us with knew our road — they'd done two installs nearby. Made the survey really straightforward."

Mark R. · Guildford

> "Loved that I wasn't bombarded with calls. One vetted installer, one quote, sensible advice. Booked in within the week."

Priya S. · Woking

> "Brilliant local company they put us in touch with — turned up when they said, tidied up after themselves and the app was set up before they left."

Tom & Becky H. · Brighton

> "Quote was fair and the install went smoothly. Only reason it's not 5 stars is the DNO notification took a couple of weeks — not the installer's fault."

Andrew K. · Hove

Every installer is MCS-accredited, RECC-registered and covered by a 12-year workmanship warranty.

Before you buy

## Solar guides for Portsmouth homeowners

[

Are Solar Panels Worth It in the UK in 2026?

An honest, numbers-led look at solar economics, payback periods and ROI for UK homeowners — county by county.





](/guides/are-solar-panels-worth-it-uk)[

Solar Panel Costs UK 2026: Real Prices, No Sales Spin

What you should actually expect to pay for a residential solar system in 2026 — fully installed, including all the bits.





](/guides/solar-panel-costs-uk)[

Solar Battery Costs UK 2026: Brands, Capacities, Payback

What batteries cost in 2026, which brands lead, and how to size storage so it actually pays back.





](/guides/solar-battery-costs-uk)[

Solar Payback Period UK: 7-10 Years on Most Homes

How to model solar payback honestly — and what drives it up or down.





](/guides/solar-payback-period-uk)[

Best Solar Batteries UK 2026: Honest Brand Comparison

Tesla Powerwall 3, GivEnergy AIO, Fox ESS, Pylontech, BYD — which one fits which home?





](/guides/best-solar-batteries-uk-2026)[

Solar Grants UK 2026: ECO4, 0% VAT, Smart Export Guarantee

The grants and incentives actually available to UK homeowners in 2026, with no marketing fluff.





](/guides/solar-grants-uk-2026)

FAQs

## Common Portsmouth solar questions

How much do solar panels cost in Portsmouth?

Standard 4 kWp installs from £6,500; bungalow installs often go larger for excellent value.

What's the typical saving in Portsmouth?

Annual savings of £1,000-£1,700 typical; up to £2,000+ on larger bungalow installs.

Do I need planning permission in Portsmouth?

For most Portsmouth homes, no — solar is permitted development. You will need consent in conservation areas, on listed buildings, and on flats. Our installers handle the paperwork either way.

How long will installation take in Portsmouth?

From signed quote to commissioning is typically 4-8 weeks in Portsmouth. The on-roof work itself is 1-2 days plus scaffolding.

Which DNO covers Portsmouth and how long does export approval take?

Portsmouth (PO1) falls under UK Power Networks (Kent, Sussex, Essex), SSEN (Hampshire, Berkshire, Oxfordshire, Buckinghamshire, Isle of Wight) or — for a handful of fringe postcodes — National Grid Electricity Distribution. For systems up to 3.68 kW per phase, your installer files a G98 notification within 28 days of commissioning. Larger systems need a G99 pre-approval, which typically takes 4-8 weeks. We won't quote you a system size your DNO won't approve.

What's the best Smart Export Guarantee (SEG) tariff for Portsmouth homes?

As of 2026, the most popular export tariffs amongst our Portsmouth customers are Octopus Outgoing Fixed (15p/kWh flat), Octopus Flux (variable, peak ~26p/kWh) and E.ON Next Export Exclusive (16.5p/kWh). The right choice depends on whether you have a battery, the size of your system and your import tariff. Your installer will recommend the best fit at quote stage.

What roof types do you install on in Portsmouth?

Our Portsmouth installers regularly fit on concrete tile, clay tile, natural and synthetic slate, profiled metal, and flat (EPDM/GRP) roofs. Victorian terraces dominate Southsea, Eastney and central Portsmouth; 1930s semis and bungalows in Cosham and Drayton. Each roof type uses different mounting hardware — for slate roofs we use slate hooks and replacement slates rather than drilling through; for flat roofs we use ballasted A-frames so the membrane stays intact.

Will solar panels in Portsmouth affect my home insurance?

A professionally installed MCS-accredited solar system in Portsmouth will not normally affect your premium, but you should notify your insurer that the rebuild value of your home has increased by the system cost. We provide a one-page MCS certificate and electrical compliance pack you can forward to them.

Is my PO1 postcode in a conservation area or AONB?

Many Portsmouth streets are entirely outside any heritage designation; some town-centre and village postcodes do fall inside a conservation area or AONB. Our installer will check your specific address using the local planning portal before quoting — and where consent is required, the application is usually decided in 8 weeks and is included in your quote.

Looking further afield in Hampshire?

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