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DNO Renewables
Stage 04 · Formal Application

Submitted right first time, so it isn't sent back.

We prepare the full G99 pack, submit it to the right DNO and manage it to a decision.

From £125 + VAT · Every DNO & IDNO · 4 kW to over 1 MW · DNO management included

Your journey
  1. 01 Technical Survey
  2. 02 Grid Feasibility
  3. 03 Connection Strategy
  4. 04 Formal Application
  5. 05 DNO Management
  6. 06 Commissioning
System sizes

From home systems to megawatt sites.

One UK team, every size of project.

Domestic

4 – <50 kW

Home solar, battery and hybrid systems that exceed the G98 limit.

Commercial

50 – <500 kW

Commercial rooftops, farms and small industrial, often with export limitation.

Large commercial

500 kW – <1 MW

Ground mount and large commercial with fuller network studies and protection settings.

Large scale

Over 1 MW

Utility scale solar and BESS needing a formal connection offer.

Utility scale

What's included

Everything the DNO needs, done properly

  1. 01

    Information check

    We review your project details and flag anything missing before it causes an RFI.

  2. 02

    Documents prepared

    Single line diagram, letter of authority and the G99 forms completed for you.

  3. 03

    Submitted to the DNO

    Sent to the correct DNO or IDNO and a reference number obtained.

  4. 04

    Managed to a decision

    We handle all DNO communication, tracked in your portal.

Pricing

Formal G99 application

Fixed price by system size. DNO management is included in every application fee, no hourly clock, no surprises.

G99 application fee by system size

4 – <50 kW

£125 + VAT

Large domestic solar, e.g. 8–12 kW

50 – <500 kW

£225 + VAT

Commercial rooftop, small industrial

500 kW – <1 MW

£545 + VAT

Ground mount, large commercial

Over 1 MW

POA

Solar farms and large scale

  • Single line diagram (SLD)
  • Letter of authority
  • G99 forms completed
  • Submission to DNO / IDNO
  • Full DNO management
  • Portal tracking per project

DNO fees are not included

Some DNOs charge their own assessment or connection fees. These are separate from our fee and we'll tell you where they apply.

Before we start

What we need from you

  • Customer and site details
  • Equipment datasheets
  • Existing supply details (MPAN, phase, cut-out)
  • Solar design or site plan

Most RFIs come from missing information. We check everything before submission so the DNO doesn't have to ask.

What comes next

After submission, we stay with the project.

The application fee covers more than the form.

Included

DNO management

We handle every DNO query and chase until a decision is received.

See DNO management

Connection offer review

Larger project with a DNO offer? Have it reviewed before you commit.

See offer review

Commissioning

After install, we complete and submit the DNO commissioning paperwork.

See commissioning

You're at stage 04 of 6 · Formal Application

Next · Stage 05

DNO Management

Handle queries, chase for progress and keep everything organised through your portal until a decision is received.

Explore stage 05 Previous: Connection Strategy
FAQs

Formal application FAQs

Ready to submit your G99 application?

Send us the project details and we'll prepare, submit and manage it for you.

Talk to our team

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