Report: Buildout of renewable energy supply does not require a surge in capital expenditure

  • In their report entitled ‘The Great Reallocation’, RMI shows that contrary to popular belief, the buildout of renewable energy supply does not require a surge in capital expenditure (capex).
  • As fossil fuel capex falls, the net growth in capex is only 2 percent per year, in line with the past seven years, and much lower than in the decade after 2000.

Financing the energy transition is a story of capital reallocation. Over the next seven years, renewable capex will roughly double and fossil fuel capex will roughly halve under core IEA scenarios. Falling fossil fuel capex will therefore provide half of the growth in renewable capex.

This capital reallocation is very achievable. The required growth in energy supply capex of 2 percent is lower than expected global GDP growth of 3 percent, and lower than the annual increase in energy supply capex from 2000–2010 of 9 percent. Given that the capital formation in 2022 was $27 trillion, the additional capex on energy supply would constitute only 1 percent of global capex.

Achieving the achievable still requires work. The key now is to ensure that capex moves from generation to grids, and from developed markets to emerging markets. The primary impediments to change are policy and expertise rather than the volume or availability of capital.

Investment in energy supply under IEA’s APS (billion $)


Source: IEA WEI 2016, WEI 2023, RMI adjustments

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Authors: Kingsmill BondSam Butler-SlossDaan WalterLaurens Speelman

This article was originally published by the RMI and is republished with permission through the Creative Commons CC BY-SA 4.0 license.

Disclaimer: The articles expressed in this publication are those of the authors. They do not purport to reflect the opinions or views of Green Building Africa or our staff. The designations employed in this publication and the presentation of material therein do not imply the expression of any opinion whatsoever on the part Green Building Africa concerning the legal status of any country, area or territory or of its authorities.

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