Pay your bill

Welcome to the RICA project

The RICA (Retro-Insulated Cross-Arms) network innovation competition research project aims to develop an innovative method for uprating overhead lines, allowing the voltage on 275kV overhead lines to be increased to 400kV.

This potentially paves the way for uprating 400kV lines to 550kV in the future.

Find out more

Latest news

£9.2m Electricity research project to save 39,000 tonnes of C02 gets go-ahead

National Grid Electricity Transmission (NGET) has been successful in securing £8.12m of funding from Ofgem’s Network Innovation Competition (NIC) to research the uprating of overhead lines, with the remainder being funded by National Grid.
Read more

RICA aligns with electricity consumer priorities outlined in our RIIO-2 business plan:

A green circle with a white leaf outline in the centre - leaf icon small

A sustainable energy system

  • Enabling low-carbon generation and reducing losses

  • Improved visual amenity and lower customer impact 
A blue circle with a thought bubble icon in the centre

Energy as and when it's needed

  • Increased capacity at key transmission boundaries

  • Improved grid resilience and operability
A blue circle with a white pound sterling symbol in the centre

An affordable energy bill

  • Lower constraint costs with capacity delivered earlier

  • Reduced consenting costs compared to new build

 

Project overview

The voltage uprate from 275kV to 400kV could provide an additional 45% power transfer capacity alone while also reducing transmission losses. support significant reductions in UK CO2 emissions – 96,000 tonnes.

Objectives and deliverables

The main aim of the project to provide a pathway for the GB’s first full-scale implementation of RICA technology.

Key documents

RICA progress reports

RICA Project Progress Report 2021

National Grid Electricity Transmission NIA Annual Summary 2020/21

 

Find out about our RICA deliverables

WP1 - Literature review

WP3 - Preliminary design considerations

 

If you want to know more...

Read our Electricity NIC submission