What Is a DNO Application (and Why It Matters for Solar)?

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If you’ve been looking into solar panels, you might’ve heard the term “DNO application” and thought:

“That sounds complicated… should I be worried?”

Short answer: no.

Longer answer: it’s a normal, behind-the-scenes step – and something we handle for you.

Let’s break it down.

First things first: what is a DNO?

DNO stands for Distribution Network Operator.

They’re the company responsible for the electricity network in your area – the cables, substations and infrastructure that connect your home to the grid.

They’re not your energy supplier.

And you don’t need to contact them yourself.

So why does solar need a DNO application?

When you install solar panels, your home doesn’t just use electricity – it can also export excess energy back to the grid.

  • The DNO needs to check that:
  • The local network can handle that extra electricity
  • Your system is safe to connect
  • Everything stays stable for you and your neighbours

It’s about protecting the grid, not creating hurdles.

The good news: most homes are approved

For the majority of residential solar installs, DNO approval is straightforward.

In many cases:

  • Approval is automatic
  • Or granted quickly after installation

This is especially true for systems within standard size limits – which covers most homes.

Who handles the DNO application?

We do.

At Project Solar:

  • We submit the DNO application on your behalf
  • We deal with the paperwork and communication
  • We design your system to stay within approved limits wherever possible

You don’t need to chase anyone, fill out forms, or understand grid regulations.

Will a DNO application delay my install?

Usually, no.

Most installations:

  • Go ahead as planned
  • Are approved either before or shortly after installation

If a network upgrade or export limit is required (which is less common), we’ll explain it clearly and talk through your options.

No surprises. No jargon.

Why this matters (and why it’s a good thing)

The DNO process exists to make sure:

  • Your system runs safely
  • Your savings aren’t compromised
  • The local grid stays reliable

It’s one of those steps you rarely see – but it’s part of doing solar properly.

The takeaway

A DNO application isn’t something to worry about – it’s a standard part of installing solar in the UK.

And with Project Solar, it’s something you don’t need to think about at all.

We design your system.

We handle the approvals.

You get the savings.

Thinking about solar for your home?

If you’re curious whether solar works for you, the first step is simply a conversation.

No pressure.

Just honest advice.

What our customers say…

  • They came out and did an actual survey as opposed to looking at it on Google Maps and doing it by phone, ask us what we need based on our previous consumption rather than just giving us an off the shelf quote. From survey to install with six weeks and the whole install took two days Everything happened when it’s when they said it would. And we were fully informed at all stages.

    Brendan Johnson

  • Great service, everything went smooth and easy from first consultation to completion. Excellent customer service. Would definitely recommend.

    Kahtan Al-Samirraie

  • The installation of the solar panels went like a dream. The gang arrived early, got straight on with it, all finished before lunchtime! Danny and Lewis were efficient in organising it.

    David Hampshire