When a wind farm developer opens a long-awaited grid connection offer only to find it empty – no dates, no conditions, no technical detail – it’s more than a clerical error. It’s a warning light for Britain’s clean energy ambitions, writes Graham Pannell, Head of Grid and Electricity Regulation at BayWa r.e. (pictured).
Progress which had already stalled since the start of 2025 is now chronic.
Connections reform was necessary; absolutely. But has it been implemented well? The evidence suggests not.
We see delays of 15 to 26 months, myriad user portal complaints, contract offers that are materially incorrect and 200% cost increases for projects that do progress. That undermines confidence across the sector.
It won’t have gone unnoticed at the system operator NESO. We have seen contract offers based on superseded designs, outdated versions, or missing core content entirely. These are not deep technical challenges; they are process failures. They must be fixed, and they will be.
They will because they have to be. Investments required for Clean Power 2030 have already paused for too long, which risks playing into a regressive alternative political narrative.
At precisely the moment when we need every wind turbine and every solar panel online to reduce gas dependence and demonstrate that clean power can reduce bills, time is running out.
Beyond the Admin
Looking beyond basic contract administration, there are enduring challenges to tackle: How can transmission owners (TOs) deliver to the scale and pace of Clean Power 2030 without simply ‘throwing money at the wall’?
How can NESO fairly and judiciously hold transmission companies to account for connections, despite having more new faces than a university freshers fair?
Stepping towards a solution, I’ll describe three central issues:
Don’t reinvent the wheel – DNOs have been there
We asked a transmission company for a specific piece of technical connection data. Five months later, an engineer replied asking, “Why do you need this?”.
That response is symbolic. Not of the delay, but of the fact they didn’t expect the question and didn’t have the information readily available.
If we’d asked the Distribution Network Operator (DNO) UK Power Networks, firstly we would probably have found it ourselves via their data portal, but if not they would likely have provided it within a few days.
A culture shift is coming. National Grid Electricity Transmission has historically and logically been structured to deliver a small number of very large, bespoke connections. That made sense when Britain built a few big power stations each decade.
Today, we have a decentralised, fast-moving energy system dominated by renewables; mostly of a size and voltage seen at the higher end of distribution networks.
Transmission owners know this in theory, but they’ve yet to really experience the volume and pressure.
The good news is that Distribution Network Operators faced this exact challenge a decade ago.
During the mid-2010s surge of ROC and FiT-backed generation, DNOs were overwhelmed – until they reinvented their processes. Through service improvement plans and RIIO’s Incentive on Connections Engagement framework, they dramatically improved responsiveness and enabled self-service.
Today, they routinely deliver around threefold the high voltage connections they did in 2010.
Transmission owners need to adopt the same playbook, and fast.
Data mismatch – The problem no one wanted to see
Even before connections reform, NESO, TOs and DNOs all held different records for the same projects. Reform has simply exposed the scale of the problem.
Misaligned data delays grid contracts, stalls supply chain contracts, undermines auction bid dates and makes investors hesitate.
Data cleanliness has never been so crucial. In fairness, Ofgem has flagged this issue, but we still don’t have a system where customers can see all their connection data and raise corrections that propagate across all government/licensed parties.
The next frontier – Cost shock
If uncertainty wasn’t enough, developers are facing connection cost increases that defy logic.
A RenewableUK and Scottish Renewables member survey shockingly revealed projects are facing threefold increases on original estimates. The drivers include a lack of supplier competition, excessive design standards inconsistent with market norms, opaque cost breakdowns and reporting errors.
An early audit – led by the connections oversight group, Silver Command – could bring accountability. Transmission owners could be required to expand supplier frameworks and implement the practical measures industry has proposed, from rationalising design standards to improving budgeting discipline.
The stakes could not be higher
Baringa estimates that “up to 38% of AR8 eligible onshore wind could be at risk” due to connection delays. Without rapid action, we’re in danger of letting the UK’s largest-ever renewable pipeline slip through our fingers.
The solutions are largely known. The evidence is clear. And the clock is ticking.