Immediate grid upgrades needed to support global renewables deployment – EY

Facebook
Twitter
LinkedIn
Reddit
Email
A 50% increase in grid spending could be needed over the next decade, according to EY. Image: The Alliance for Innovation and Infrastructure.

The investment required to upgrade and expand transmission infrastructure across the world will be a key challenge as more renewables come online, consultancy EY has warned.

While the “conditions are ripe for rapid growth” in renewables generation around the world, an immediate upgrade of energy transmission grids is now “critical”, EY said in its biennial Renewable Energy Country Attractiveness Index (RECAI).

This article requires Premium SubscriptionBasic (FREE) Subscription

Try Premium for just $1

  • Full premium access for the first month at only $1
  • Converts to an annual rate after 30 days unless cancelled
  • Cancel anytime during the trial period

Premium Benefits

  • Expert industry analysis and interviews
  • Digital access to PV Tech Power journal
  • Exclusive event discounts

Or get the full Premium subscription right away

Or continue reading this article for free

Given the extent of grid development needed across the globe, it will be crucial for all regulators to reconsider the permitting, regulatory and financing environment to help ensure outdated grid systems do not become a major hurdle in the race to net zero, according to the report.

“If sustainability goals are to be met, a 50% increase in grid spending could be needed over the next decade as markets adapt for a net zero future,” said Arnaud de Giovanni, EY global renewables leader, adding that the COP26 summit next month could be a watershed moment in combatting the climate crisis.

Ranking the world’s top 40 markets for the attractiveness of their renewable energy investment and deployment opportunities, RECAI placed the US top, a position it has held since the May 2020 edition when it leapfrogged China. Given new initiatives being announced by President Biden, the US is expected to hold its position.

However, given the hundreds of gigawatts of renewables capacity currently stuck in the country’s interconnection queues, EY said significant investment in transmission infrastructure will be a factor in meeting US emission reduction goals.

China and India remain unchanged in the rankings at second and third position, respectively, with the index highlighting the favourable regulatory and investment conditions in both markets.

The top-performing countries have held their ground in this latest issue, with no movement into or out of the top eight. France has leapfrogged the UK into fifth position, however, and Germany has edged back ahead of Australia into seventh.

A new entrant to RECAI, Indonesia is placed 39th, having set more ambitious renewables deployment targets that will see the country aim to install almost 4.7GW of solar by 2030.

10 March 2026
Frankfurt, Germany
The conference will gather the key stakeholders from PV manufacturing, equipment/materials, policy-making and strategy, capital equipment investment and all interested downstream channels and third-party entities. The goal is simple: to map out PV manufacturing out to 2030 and beyond.

Read Next

September 17, 2025
Chinese module producer DAS Solar is planning a 5GW manufacturing facility focused on producing high-efficiency back contact cells.
September 17, 2025
For the third year in a row, self-consumption installs have fallen in Spain, with 611MW of new additions in the first half of 2025, according to a report from trade body APPA Renovables.
September 16, 2025
Chinese polysilicon producer GCL-Tech has entered into a strategic financing agreement with Infini Capital, a globally renowned investment institution backed by a Middle Eastern sovereign wealth fund.
Premium
September 10, 2025
PV Talk: Italy’s new CfD policy offers clear support for solar developers in an otherwise uncertain legislative landscape, says Terrawatt's Patrizio Donati.
September 10, 2025
The CEFC has said that a coordinated approach to transmission in Pilbara, Western Australia, could save more than AU$30 billion over 25 years.
September 9, 2025
China has advanced in the integration of AI and new energy, covering areas such as power forecasting, electricity markets, and O&M.

Subscribe to Newsletter

Upcoming Events

Solar Media Events
September 30, 2025
Seattle, USA
Solar Media Events
October 1, 2025
London, UK
Solar Media Events
October 2, 2025
London,UK
Solar Media Events
October 7, 2025
Manila, Philippines
Solar Media Events
October 7, 2025
San Francisco Bay Area, USA