Home / Solar

Solar

Solar Panels and the Warm Homes Plan: A Smarter Way to Get Ready

How homeowners in Bromley, Kent and South London can stay ahead of demand  – without rushing a decision

The government’s Warm Homes Plan will unlock grants and low‑interest finance for home upgrades, including solar panels for homeowners and battery storage. Demand for solar is already high, with the UK breaking yearly records for rooftop installations and passing the one‑million‑home mark. For homeowners in Bromley, Kent and South London, the question now isn’t “does solar make sense?” – it’s “how do I get into the best position before everyone else piles in?”

Capacity, not cash, will be the solar bottleneck

When national schemes launch, headlines focus on how much money is available, but it is usually capacity that bites first: surveyors, installers and grid approvals can only move so fast.

In areas like Bromley, Beckenham and Orpington, a typical G99 grid application already takes around three to six weeks to process. During that time, nothing can move on your installation date, which means your project is effectively parked until the DNO signs off. As Warm Homes funding starts driving a surge in applications, that same process is likely to become a major pressure point, with homeowners pushed into a longer queue through no fault of their own.

This is particularly relevant across parts of South East London and Kent, where new residential solar systems are increasingly assessed on a case-by-case basis through the G99 process, rather than being automatically approved.

The homeowners who wait for every detail of the scheme to be finalised will be trying to book surveys and submit grid applications at exactly the same time as everyone else. The ones who seem “early” are not rushing – they are quietly moving through the slow, procedural steps while things are still calm.

What “getting ready” actually means

Getting ready for solar before Warm Homes support lands does not mean signing up to have panels fitted next week. It means doing the groundwork that every residential solar system needs, regardless of how it is eventually funded.

In practical terms, the recommended first step ahead of Warm Homes support is to complete a home energy survey, confirm roof suitability, and submit the relevant DNO application so the system design is already in place.

That groundwork is straightforward: understanding your roof, your household electricity usage and your local grid connection, and having a properly designed system on the table. Once a tailored survey, design and (where required) G99 application are completed, you are no longer relying on online calculators or rough estimates. You are looking at a system designed for your home, under your DNO’s rules  – with grid approval that does not expire.

Because surveys and grid approvals are required for every solar installation, completing them early removes uncertainty without committing you to an install date.

That work keeps its value whether you decide to install straight away, wait for Warm Homes grants and loans to formalise, or adjust the plan as new details emerge.

Why clarity should come before any big decision

Solar is a long-term choice. It will shape how your home uses and stores energy for decades, not just the next bill cycle. That is why it pays to get clear on the fundamentals early, instead of weighing them up at the same time as everyone else is competing for survey slots.

A good solar survey and system design for a Bromley or Kent property provides concrete answers: how much your roof can realistically generate, whether a battery would materially reduce imported electricity and bills, and what the likely payback period is for the system.

With that level of clarity, Warm Homes support becomes one more lever you can choose to use  – rather than the only reason you are acting.

A smarter way to approach Warm Homes and solar

Most of the homeowners Eva’s Energy Limited works with across Bromley, Kent and South London are busy professionals  – people who want to feel they have seen around the corner and made a considered decision, not simply reacted to a headline.

For that kind of homeowner, the strongest position to be in over the next few months is simple: informed, prepared and unpressured. Informed, because you know what is possible on your home and what it should cost. Prepared, because the slow, admin-heavy steps such as surveys and G99 approval are already in hand. Unpressured, because you choose when to go ahead, rather than letting a funding window or processing backlog dictate your timing.

Get ready now. Decide later.

If solar panels or battery storage are on your horizon in Bromley, Kent or South London, a no‑obligation home survey with Eva’s Energy is a straightforward first step. Because clearing the bottlenecks before everyone else joins the queue is often the smartest move you can make.

 

Two Solar Quotes. Same Price. Very Different Outcomes.

How pricing structure – not just the headline cost – determines what you’ll pay over time

Key takeaway
Two solar installation quotes can show the same total price but behave very differently over time.
The difference isn’t the panels or batteries – it’s where the installer places their profit, and how that affects upgrades and system quality later.

You’ve done the sensible thing. You’ve gathered two solar quotes, read them carefully, and checked that the panels, inverter and battery look broadly comparable. The totals are almost identical, so it’s tempting to assume the choice doesn’t really matter.

But a solar panel quote isn’t just a list of equipment. It’s also a pricing model – and that model only really reveals itself once you start changing the system.

This is something we see regularly with homeowners, particularly once they begin comparing solar installation quotes in detail.

Why the structure of a solar quote matters

In the UK, MCS sets the technical standards for solar installations and certification, but it does not dictate how installers structure their pricing. Each company decides how much detail to show and where to include its profit.

Many solar installers choose to load a significant share of their profit margin into the equipment lines – panels, inverters and batteries – while keeping labour costs looking lean.

This approach allows an installation to appear better value on paper. Customers often feel more comfortable paying for equipment rather than services; it feels like they are getting a better deal – even though the overall cost looks the same.

But when product prices are inflated, every step toward a better system – more panels, more storage, higher-spec equipment – costs more than it needs to. That quietly pushes homeowners toward a reduced specification, not because it’s the right system, but because the margin has already absorbed part of the budget.

Two solar quotes, same total, different structure

Below is a simplified version of a real UK residential system using current market pricing (Feb, 2026) for 10 panels, a hybrid inverter and a 9.5 kWh battery. Both quotes reach the same total system cost, but the money is allocated very differently.

Quote 1 – Transparent structure (0% markup on goods and materials)

Goods subtotal (0% markup): £4,130
Panels, mounting, inverter, battery, protection, cabling, monitoring and delivery priced at true UK market cost.

Services subtotal: £4,450
Installation, battery fit, scaffolding, AC works, commissioning, compliance and certification, priced at honest UK rates.

Total system cost (0% VAT): £8,580

In Quote 1, column B, , the value of skilled labour, system design and compliance work is visible, and the equipment pricing reflects what the hardware actually costs.

Quote 2 – Same total, margin folded into the kit

Shown in column C, the same exact system, the same overall price – but with a 40 percent margin built into the equipment lines and artificially lower labour costs.

Goods subtotal (with markup): £5,765
Services subtotal: £2,815
Total system cost: £8,580

On paper, the total is identical. And it is human nature to want to ‘get a deal’: to pay less for the installation and a greater portion of total spend to go towards hardware.

Both pricing approaches are legal. The difference is how clearly the homeowner can see what they are paying for.

But what happens when you expand the system?

Most residential solar systems evolve after the first survey. A very typical next step is adding more storage and a few extra panels once energy use becomes clearer.

Using the same example above, imagine the homeowner decides to add:

  • One additional 9.5 kWh battery
  • Four additional panels

With transparent solar pricing (0% markup on goods)

Every pound of that increase goes directly into additional capacity and performance.

With margin baked into the equipment, the total cost increase is £876 more for the same battery, the same panels and broadly the same work – purely because profit is applied to the hardware.

At the original installation stage, the two solar quotes appeared equivalent. As soon as the system grows, the pricing models diverge quickly.

Why this matters when comparing solar installation quotes

When a large share of cost is hidden inside equipment prices:

  • Improving the system becomes disproportionately expensive
  • You end up paying more for products rather than skilled workmanship
  • Budget that could have gone into performance is absorbed by margin

When goods and services are clearly separated and priced realistically:

  • Upgrades improve system quality, not installer profit
  • You stay in control of how your money is spent
  • You can afford the best system your budget allows, not the one margins force you into

Eva’s Energy’s approach to solar pricing

Eva's Energy Ltd installs solar panels and battery storage to homes across Bromley, Southeast London and Kent borders.

Importantly, and what makes us unique - at Eva’s Energy, panels, inverters, batteries and mounting equipment are passed through at their true underlying cost, with 0 percent markup on goods and materials. Profit is earned transparently through clearly defined services such as system design, installation, testing and compliance.

The practical effect is simple: when you choose to add capacity or upgrade components – now or years later – your additional spend goes into better technology on your roof and in your battery, not into hidden percentages on top of hardware.

The one question worth asking before choosing a solar installer

How much markup do you add to goods and materials?

That single answer will tell you almost everything you need to know about how a quote is structured.