Turning Ambition into Action
Play videoElectricity Transmission
an economic
engine, powering the country through change
View our executive summary
...It has been a dynamic and fascinating period in which to produce this Business Plan. We feel the weight of responsibility and the anticipation of rising to the challenge every day.”
Alice DelahuntyChair of the NGET Board
President of Electricity Transmission
National Grid Historical Timeline
1935
The national grid was built.
By 1953,
it was already
at capacity.
The solution?
A supergrid designed to scale for generations of rapid growth.
Our RIIO-T3 Business Plan
Our Business Plan will deliver a transformation of our network, nearly doubling the amount of power we can transfer across the country, and providing twice as many customer connections as in the last five years.
Explore the plan
Accelerating the transition to a net zero economy, to make Britain a clean energy superpower
National Grid Net Zero Timeline
We're connecting
new clean
power
2026 to 2031
Net Zero by
2050
Co-creating our plan with customers and stakeholders
Collaboration and cooperation will be critical to our collective success over the coming years. We are confident that there is a pathway to deliver, if we work together across industry, Government, Ofgem and NESO.
Download our consumer research
Highlights of
our plan
The new infrastructure we are building will lead to more stable bills and save £12bn of additional system constraint costs.
View our plan by regionDetailed map showing Riio T3 plans
- Gray circle symbol:
- Existing Substation
- Red circle symbol:
- Major Site Strategy
- Green circle symbol:
- New Substation
- Gray line symbol:
- Existing Network
- Blue line symbol:
- Upgrade Existing
- Green line symbol:
- New Build
- Dashed orange line symbol:
- Developing Only
25 new substations delivered in RIIO-T3 of which there are five shown on the map (from RIIO-T2 reopeners)
Further 15 new substations to be delivered beyond RIIO-T3
Keeping asset risk stable while the network grows
Upgrading 10% of our existing substation fleet
Building a state-of-the-art resilient new Electricity Transmission Control Centre
c.1,100km new ciruits delivered;
including c.1,000km offshore
Upgrading c.3,500km
of our overhead
lines
5 new power flow control installations across 4 major north-south routes
All sites resilient by design
From ambition
to action
Our RIIO-T3 Project Statistics
- Power flows
- Nearly doubling the power that can flow across the country
- 0.7% Efficiency
- 0.7% efficiency year-on-year
- £1.2bn
- Avoiding c.£12bn of constraint costs, equivalent to £40 per year for consumers
- Emissions Reduction
- 50% reduction in our own emissions compared to our 2018/2019 baseline
- 35 GW / 19 GVA
- Connects 35 GW generation and 19 GVA demand
- Legacy of benefits
- Both community and regional benefits
- Decarbonisation
- Supports growth of British businesses and decarbonisation of our economy
- Grow workforce by 50%
- And improve diversity to better reflect our communities
- 99.9999%
- Keeping the lights on, with 99.9999% reliability
- Biodiversity Net Gain
- Biodiversity net gain across equivalent of >8,000 acres of land, 7x impact vs. RIIO-T2
We're already getting started, with The Great Grid Upgrade
As the UK moves away from fossil fuels and increases clean energy generation, we'll all be using more electricity than ever before. This means we need to build new infrastructure, as well as upgrading the existing grid, to make sure this clean, green energy can be brought from where it's generated to where it's needed by homes and businesses.
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Our Ambitions
- Deliver the grid of tomorrow, today
- Deliver with urgency the Transmission Network needed for Great Britain's future growth and decarbonisation
- Do the right thing for consumers, communities & stakeholders
- How we deliver is as important as what we deliver
-
Transform the way
we work - Transform our capabilities to deliver for consumers
We will develop the future grid which supports Great Britain's growth and decarbonisation
It is so important to us that we rise to the challenge ahead in a responsible and considered way.
