Download our RIIO-T3 Business Plan

Learn more about our plan for 2026 - 2031

A regional view of our plan

Our Regional Reports

Infrastructure fit for a low-cost transition to net zero

In this section, we outline the commitments and investments that support the first of Ofgem’s four Consumer Outcomes: infrastructure fit for a low-cost transition to net zero. This includes how we will increase the capacity of the system, accelerate connections for our customers and protect and improve the environment.

Secure and Resilient Supplies

In this section, we outline the commitments and investments that support Ofgem’s second consumer outcome: Secure and resilient supplies. This includes how we will maintain our assets during a growth phase, transform our operations to manage a net zero power system and ensure the resilience of our network, supply chain and workforce.

High Quality of Service from regulated firms

In this section, we outline the commitments and investments to support Ofgem’s third Consumer Outcome: high quality of service from regulated firms. This includes how we will improve the experience for our customers connecting to our network, make a positive contribution to our communities and consumers, mitigate the visual impacts of our network and invest in and deploy innovation.

Long term value for money

In this section we outline our contribution to delivering Ofgem’s fourth Consumer Outcome: long-term value for money. This includes outlining how we will ensure our costs are efficient, our contribution to supporting economic growth, our digitalisation and data strategy, our information technology and telecommunications investments and the regulatory framework to support long term value for money.

Cost and financeability

In this section we set out the overall cost of our plan and the financial framework for RIIO-T3. We also explain our approach to ensuring we are able to finance our business, our evidence for the regulatory framework and rate of return necessary to attract investment.

Supporting documents

Annexes and High Level Summaries

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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.

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Cost and financeability

In this section we set out the overall cost of our plan and the financial framework for RIIO-T3. This would allow us to attract the capital that is required to deliver the consumer and societal benefits of the energy transition.

Attracting capital to deliver what is needed by 2030 is only the beginning of the process of delivering the energy transition in the UK – we expect electricity demand to double between now and 2050 as we electrify heat and transport and therefore the sector will need to be able to attract significant levels of capital to invest over the next 25 years.

In this section, we summarise our overall investment plan using the standard categories specified by Ofgem. We also explain our approach to ensuring we are able to finance our business, our evidence for the regulatory framework and rate of return necessary to attract investment.

We will cover the following topics:

6.1 Overview of our investment plan
6.2 Financing our business plan

Download this Consumer Outcome View this section's supporting documents

Supporting Documents

Annex A12 – Finance Annex