New
DNO approval letters
Your DNO's answer, read for you.
Learn moreCompliance infrastructure · up to 1 MW
Automatic DNO application packs for UK solar, EV and heat pumps
From sole traders to national operators, CLRD generates the entire DNO application for solar, battery, EV charger and heat pump installs: routing, single line diagram, equipment refs and supporting documents, start to submitted in about 4 minutes.
First job free · no card to start
Live across all 6 UK DNOs · MCS · ENA regulations built in
100%
Routing accuracy
4 min
Application, start to submitted
Trusted by MCS certified installers
What is CLRD
CLRD builds the whole DNO application in about 4 minutes and routes it via the ENA framework to the operator, in a language they understand.
The framework is the same for everyone. What each operator does with it isn't. We treat a submission as an engineering problem, the same way the network does. You enter the install once, and everything below is built out of that one set of data.
What each DNO actually asks for
The rules are one thing. What each operator will hold an application for is another. One wants a measurement taken at the property; another charges to look at the same job. We log it job by job, so the job page tells you before you submit, not after.
DNO applications · last 100
99 of 100
connection offers, first time.
We treat every DNO application as an engineering project, the same way the network views it.
Offer first time · 99More info asked · 1
Taken from our audit chain: a snapshot of the last 100 jobs submitted through CLRD.
The 1 exception: site boundary map not submitted with the application; requested by the DNO. Since release 2.4, CLRD requires the map wherever DNOs have held applications without one.
Working across every major UK DNO and virtually all IDNOs
UKPN· UK Power Networks
NGED· National Grid ED
SSEN· SSE Networks
NPG· Northern Powergrid
SPEN· SP Energy Networks
ENWL· Electricity North West
UKPN· UK Power Networks
NGED· National Grid ED
SSEN· SSE Networks
NPG· Northern Powergrid
SPEN· SP Energy Networks
ENWL· Electricity North West
How it works
Enter the job once. CLRD routes it, builds it, submits it and closes it out.
The same workflow every time, whether it's a single residential install or a national framework delivering hundreds of dwellings a month.
- 01
Create job
Address, customer, MPAN. CLRD resolves the DNO, or your CRM creates the job over the API.
- 02
Enter the job details
Phase, kW, batteries, EV chargers, heat pumps, export limits, pulled from the ENA registers, with IDC filled in from thousands of datasheets.
- 03
CLRD routes it deterministically
Routes to the right DNO and form from the ENA thresholds coded into the engine, then tells you why.
- 04
Add the evidence, generate the pack
Install date, configurable SLD, cut-out photo, boundary map and signatures. Then the pack.
- 05
Review and submit
Sent straight from the platform. Replies land in the same place, and approval letters are read, filled in and one click from your client.
- 06
Commission and close out
Post install forms and the real commissioning checklist, signed by whoever carried out the work.
The engine
What powers the DNO application pack.
Every pack is built the same way, from DNO routing and an SLD to ENA references and submission, whether the job is solar, battery, an EV charger or a heat pump.
Customer story
Started by an installer. Proven by installers.
Case study
Totum Renewables · Chris
A breath of fresh air.
CLRD is a breath of fresh air in an industry known for being paperwork heavy. I'm really happy with how much it's streamlined my processes, especially the boundary line and SLD features. Great product, and I'm looking forward to the features coming next. 10/10!
24
Applications filed since June
5 min
Median job, start to filed
2 routes
SGI-3 and General Type A, routed automatically
“I sing your praises to whoever we come across in this business. You genuinely have a brilliant product that makes all our working lives easier for a very fair price.”
SV
Nick
SolarVolt Energy Ltd
“The multi technology submissions such as ASHP, solar and EV are so much easier now with CLRD. It works out the load and generation and totals, then routes via ENA thresholds in seconds, producing the right result every time. So far we have had first time approvals on our submissions with SSEN.”
SE
Steve
Selenium Energy
Solutions
One platform. Every scale of operator.
The same compliance workflow runs end to end, whether you're submitting one job a month or thousands across multiple regions and brands.
Built to be right
Easy to use. Hard to get wrong.
You don't need to know G98 from G99 to file one. Enter the job in plain terms and CLRD checks every detail as you go, works out the route and builds the pack. If something can't be right, it stops and tells you how to fix it, before anything reaches the DNO.
01
Enter it once
The address, the kit, the supply. Type it once and it fills every form, the single line diagram and the cover letter, so nothing in the pack can disagree with anything else.
02
Pick the kit from a list
Search the ENA register by make and model. The reference, capacity and type tests come with it, so there's nothing to look up or copy across, and only kit approved for a new install is offered.
03
Mistakes caught as you type
A wrong MPAN, a mistyped postcode, a number from the wrong line of the bill. Flagged on the spot, not by the DNO three weeks later.
04
No need to know the rules
CLRD works out the route from the kit and the supply, G98, SGI or Type A, then every form the job needs. You don't have to know which applies.
05
A bad job can't get through
A three-phase inverter on a single-phase supply, phases out of balance, a device not tested for the route. The job stops and shows you the fix, and it can't make a pack until it's right.
06
Nothing goes out half done
Generate waits until the diagram is drawn, the site map is in where it's needed, the install date fits and the commissioning tests are confirmed.
The one thing no software can check is whether the details match the install on the wall. That's why the commissioning checklist is signed by the person who commissioned it. How the engine works →
700
Pages of ENA framework, handled for you
G98, G99, G100 and the ENA's EV, heat pump and Standard Application forms run to around 700 pages and keep changing. CLRD keeps its routing tied to the current rules, so you don't have to read any of it.
12,400+
ENA registered devices in the platform
Around 9,200 generation devices, including inverters, batteries and export limiters, plus around 3,200 EV charge points and heat pumps. That is the whole register mirrored rather than the filable subset, which is why it is a larger number than the roughly 7,000 Fully Type Tested inverters a new install can be built from. Reconciled against the published ENA registers at least monthly.
100%
Audit trail, by default
Every job, every decision, every output logged on the job's own record, and exportable as data when a funder, warranty provider or framework asks for evidence.
The DNO Guide
The DNO guide we wish we'd had.
What G98, G99 and G100 actually mean, what goes in a submission, and how to send one, start to finish. Written by an installer, free to read, whether you use CLRD or not.
See it run on one of your own jobs.
Run a real install through CLRD end to end and download the finished pack. Pay only when you run your second job.
First job free. No card to start. Or run one through with one of the team.