Reinventing energy efficiency for net zero

Energy efficiency has delivered the largest share of historic greenhouse gas mitigation. A significant part of this relied on replacing fossil fuel technologies with more efficient versions, often supported by public funding or driven by other policies and regulations. But the goalposts have shifted...

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Main Authors: Rosenow, J, Eyre, N
Format: Journal article
Language:English
Published: Elsevier 2022
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author Rosenow, J
Eyre, N
author_facet Rosenow, J
Eyre, N
author_sort Rosenow, J
collection OXFORD
description Energy efficiency has delivered the largest share of historic greenhouse gas mitigation. A significant part of this relied on replacing fossil fuel technologies with more efficient versions, often supported by public funding or driven by other policies and regulations. But the goalposts have shifted dramatically in recent years. The scale of the climate crisis means that full decarbonisation of the economy rather than partial reduction of emissions is now the target. Instead of just using fossil fuels more efficiently, this requires ceasing using them at all. This in turn requires moving to zero‑carbon energy vectors, notably via electrification of end-uses previously not served by electricity. At the same time, the costs of renewable electricity sources and storage have plummeted and are expected to continue to fall further. The combined effects have major implications for the role of energy efficiency in energy system change. In this paper, we assess whether and how energy efficiency can and needs to be reinvented in light of these challenges. We identify a number of policy recommendations suggesting that energy efficiency needs to continue to play an important role, but can only do so if we rethink its role in the race towards full decarbonisation.
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spelling oxford-uuid:5a27c3f1-c2a1-4759-8c4e-9f8dfe3f2b3c2023-03-31T08:48:44ZReinventing energy efficiency for net zeroJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:5a27c3f1-c2a1-4759-8c4e-9f8dfe3f2b3cEnglishSymplectic ElementsElsevier2022Rosenow, JEyre, NEnergy efficiency has delivered the largest share of historic greenhouse gas mitigation. A significant part of this relied on replacing fossil fuel technologies with more efficient versions, often supported by public funding or driven by other policies and regulations. But the goalposts have shifted dramatically in recent years. The scale of the climate crisis means that full decarbonisation of the economy rather than partial reduction of emissions is now the target. Instead of just using fossil fuels more efficiently, this requires ceasing using them at all. This in turn requires moving to zero‑carbon energy vectors, notably via electrification of end-uses previously not served by electricity. At the same time, the costs of renewable electricity sources and storage have plummeted and are expected to continue to fall further. The combined effects have major implications for the role of energy efficiency in energy system change. In this paper, we assess whether and how energy efficiency can and needs to be reinvented in light of these challenges. We identify a number of policy recommendations suggesting that energy efficiency needs to continue to play an important role, but can only do so if we rethink its role in the race towards full decarbonisation.
spellingShingle Rosenow, J
Eyre, N
Reinventing energy efficiency for net zero
title Reinventing energy efficiency for net zero
title_full Reinventing energy efficiency for net zero
title_fullStr Reinventing energy efficiency for net zero
title_full_unstemmed Reinventing energy efficiency for net zero
title_short Reinventing energy efficiency for net zero
title_sort reinventing energy efficiency for net zero
work_keys_str_mv AT rosenowj reinventingenergyefficiencyfornetzero
AT eyren reinventingenergyefficiencyfornetzero