See which sites have grid capacity before you shortlist them.
A fast screen of one site or many in Great Britain. For each one, how close it is to published grid headroom, who already holds capacity there and what else could stand in the way.
Available today for battery storage sites. Screening for data centres and electrolysers is planned. Screening through an API is in early access.
Why developers choose it
Shortlist with confidence
Rule sites in or out on grid before you spend on land and surveys.
Know who is already there
See the projects already holding capacity near each site.
Spot other blockers early
Land and planning constraints come with every screen.
What the screen shows for each site
Nearest connection points
The substations closest to the site, and how far away they are.
Published headroom
The operator's own figure and rating, with its date.
Capacity already taken
Registered projects holding capacity nearby, and where the queue stands.
A rough cost class
A guide to how heavy a connection is likely to be. It is not an operator's quote.
Land and planning flags
The main constraints on the site.
Better sites nearby
A ranked list of stronger sites close by, where there are any.
Who is it for?
Battery developers
Compare a list of sites on grid in one pass.
Land teams and agents
Know which sites are worth taking to a landowner.
Large energy users, later
Data centre and electrolyser screening is planned.
How it works
Send your sites
Points or boundaries, and the MW you have in mind.
We screen each one
Grid, capacity held nearby and the main land constraints.
Compare side by side
One short report, and the same results as data.
Good to know
- The screen covers Great Britain.
- Headroom is the figure the operator has published, on its stated date. It is not a connection offer.
- Low voltage headroom is not published, and queue positions are only partly public.
- Data centre and electrolyser screening is planned and is not available today.
Questions about Grid pre-screen
Is the headroom figure the same as the network operator's?
Yes. We show the figure the operator published, with its date and the operator's own rating, and we name the operator on every row.
Does it tell me who else is queuing at the substation?
It shows the projects on the public registers at that point, with their size and status. Contract terms and the full queue are not public.
Can I send several sites at once?
Yes. You can send a list of sites, and the screening API takes several sites per call in early access.
Does it cover data centres or electrolysers?
Not yet. That is planned. The grid screen is available today for battery storage.
Is the headroom live?
No. It is the figure the operator last published, with its date.
Related: Battery storage siting report · Planning risk screen
Want to screen a list of sites?
Send us the sites and the MW. We will confirm what the screen covers and when you will have it.
Request a screen →Prefer email? Write to hello@arithim.com.