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[en] Highlights: • Level of interest towards EE varies greatly with countries’ renewable energy mix. • Energy efficiency is important even for renewable-rich countries. • Iceland, Norway and New Zealand are top-three renewable-rich OECD countries. • Policies need to be synchronized with technological advancements. - Abstract: The relevance of energy efficiency policy measures for renewable-rich countries could be different from those countries that have a limited share of renewables in their electricity generation mix, and are therefore likely to focus on low-carbon energy generation policies. This paper presents a comparative analysis of the energy efficiency initiatives of the three highest renewable-rich OECD countries, namely: Iceland, Norway and New Zealand. The paper then focuses on a comprehensive review of New Zealand's energy efficiency policies since a formal “Energy Efficiency and Conservation Act” came into force. This paper then highlights the future challenges for New Zealand and offers some policy recommendations, which may also be applicable for other renewable-rich countries.
[en] As the global electricity systems are shaped by decentralisation, digitalisation and decarbonization, the World Energy Council's Innovation Insights Briefs explore the new frontiers in energy transitions and the challenges of keeping pace with fast moving developments. We use leadership interviews to map the state of play and case studies across the whole energy landscape and build a broader and deeper picture of new developments within and beyond the new energy technology value chain and business ecosystem. The topic of this briefing is energy storage. We interviewed energy leaders from 17 countries, exploring recent progress in terms of technology, business models and enabling policies. We showcase these in 10 case studies. While the brief addresses energy storage as a whole, most insights are focused on electrical storage. Our research highlighted that today's mainstream storage technologies are unlikely to be sufficient to meet future flexibility requirements resulting from further decentralisation and decarbonization efforts. Furthermore, a restricted focus on lithium-ion batteries is putting the development of more cost-effective alternative technologies at risk. A detailed list of the interviews with innovators, energy users and producers can be found at the end of this brief. Annex 4 provides a list of acronyms and abreviations. With major decarbonizing efforts to remove thermal electric power generation and scale up renewable energies, the widespread adoption of energy storage continues to be described as the key game changer for electricity systems. Affordable storage systems are a critical missing link between intermittent renewable power and 24/7 reliability net-zero carbon scenario. Beyond solving this salient challenge, energy storage is being increasingly considered to meet other needs such as relieving congestion or smoothing out the variations in power that occur independently of renewable-energy generation. However, whilst there is plenty of visionary thinking, recent progress has focused on short-duration and battery-based energy storage for efficiency gains and ancillary services; there is limited progress in developing daily, weekly and even seasonal cost-effective solutions which are indispensable for a global reliance on intermittent renewable energy sources. The synthesis of thought leadership interviews and case studies with 37 companies and organizations from 17 countries helped derive the following key takeaways and also provide the impetus to the solution steps that we discuss in detail later in this brief: 1 - Shared road-maps: Energy storage is a well-researched flexibility solution. However, while the benefits of energy storage are clear to the energy community, there has been limited bridge-building with policy-makers and regulators to explore the behavioural and policy changes necessary to encourage implementation. 2 - Market design - Access and stacking: Market access and the ability to stack different services simultaneously will enable cost-effective deployment of energy storage, regardless of the technology. 3 - More than batteries: Energy storage is too often reduced to battery technologies. Future-proofing our energy systems means considering alternative solutions and ensuring technologies have equal market opportunities. Demonstration projects of such technologies are necessary to disprove bias towards specific technologies. 4 - Sector coupling: Energy storage presents a sector coupling opportunity between hard-to-abate sectors, such as mobility and industry and clean electricity. Different vectors of energy can be used, including heat, electricity and hydrogen. 5 - Investment: Relying on investments by adjacent sectors such as the automotive sector is not enough. The energy sector must adopt more aggressively technologies aligned with the end-goal: affordable clean energy for all.
[fr]L'adoption a grande echelle du stockage de l'energie est consideree comme un changement de paradigme majeur pour le systeme energetique. Le developpement d'une technologie de stockage accessible aux consommateurs constitue le chainon manquant pour rendre fiables les energies renouvelables variables. En depit de ce defi technique, le stockage de l'energie peut remplir un role au-dela des energies renouvelables, notamment dans le controle des congestions et les variations de puissance du reseau. Malgre ces perspectives encourageantes, les progres autour du stockage sont restes centres sur les services secondaires et les gains d'efficacite acquis par le stockage a court terme. En revanche, tres peu de progres a ete fait vers les solutions diurnes, hebdomadaires ou saisonnieres rentables, qui sont necessaires a la fiabilite des sources d'energies renouvelables. Conclusions principales: 1 - Feuille de route partagee: le stockage d'energie est une solution de flexibilite reconnue. Cependant, il existe tres peu de visions communes entre legislateurs et experts, bien que tous reconnaissent le potentiel du stockage. 2 - Structure du marche: obtenir un deploiement rentable du stockage se fera grace a un acces equitable au marche et un cumul de differents services, quelle que soit la technologie utilisee. 3 - Au-dela des batteries: le stockage energetique est trop souvent reduit aux batteries. Un systeme energetique a l'epreuve du temps doit s'appuyer sur des solutions diverses, encouragees par un acces equitable aux opportunites sur le marche. 4 - Couplage sectoriel: le stockage energetique represente une veritable opportunite de couplage entre les secteurs difficiles a decarboner et les energies renouvelables. Differents vecteurs d'energie peuvent etre utilises, y compris la chaleur, l'electricite et l'hydrogene. 5 - Investissements: il faut diversifier les investissements au-dela des secteurs adjacents, tel que le secteur automobile. Le secteur energetique doit adopter de maniere plus agressive les technologies alignees avec leur finalite: de l'energie propre pour tous.
[en] The World Energy Council's definition of energy sustainability is based on three core dimensions: Energy Security, Energy Equity, and Environmental Sustainability of Energy Systems. Balancing these three goals constitutes a 'Trilemma' and balanced systems enable prosperity and competitiveness of individual countries. The World Energy Trilemma Index presents a comparative ranking of 128 countries' energy systems. It provides an assessment of a country's energy system performance, reflecting balance and robustness in the three Trilemma dimensions. To provide greater insight, we have evolved the methodology for the 2019 Trilemma and, for the first time, introduced visualisation of historical trends to enable the Trilemma performance of individual countries to be tracked back two decades to 2000. The new time-series analysis provides insights into a country's historical trends, challenges and opportunities for improvements in meeting energy goals now and in the future. The Index demonstrates the impact of varying policy pathways countries have taken in each of the dimensions over the past 20 years. Looking at these trends can inform a dialogue on national energy policy to promote coherence and integration to enable better calibrated energy systems in the context of the global energy transition challenge. Ten countries achieve the top AAA balance grade in the 2019 World Energy Trilemma Index, representing top quartile performance in every dimension. Since 2000, no countries have consistently improved in each dimension every year; instead most show historical trends with a variety of peaks and troughs in a general upward direction. Overall Trilemma performance for 119 countries over the 20-year period has improved, with only 9 countries seeing their overall performance declining. The rate of improvement in overall Trilemma performance also increases as the transition progresses and encourages countries to improve their energy policies. The overall top three countries across all three Trilemma dimensions are Switzerland, Sweden and Denmark. For the Energy Security dimension, the top performing countries in 2019 are Sweden, Denmark, and Finland. The top of the Energy Equity dimension traditionally ranks well-endowed or well-connected countries and geographically concentrated populations with access to abundant and affordable energy: Luxembourg, Bahrain and Qatar are the top performers in 2019. The leaders of the 2019 ranking for the Environmental Sustainability of Energy Systems are countries making steady gains on the pathway to decarbonization and pollution control, in the context of sustainable economic growth. The top performers in this dimension are also the overall Trilemma leaders - Switzerland, Denmark and Sweden. Across the different regions of the world, pathways through the transition are different, and leading countries in each region represent this diversity. The top 10 2019 Trilemma ranking is dominated by European countries, with Switzerland as the top performer in Europe both due to robust baseline systems and coherent policies improving upon these. Uruguay ranks highest of all Latin American and Caribbean countries, with high scores in the Security and Sustainability dimensions. In the Middle East and Gulf region, Israel ranks highest due to its performance in Sustainability compared to the regional average. New Zealand, with a placing in the global top 10, heads up the Asia-Pacific region with an AAA grade. Mauritius is ahead of other countries in Africa, balancing both Equity and Sustainability performance. Canada represents the best overall performance in the North American region due to strong Energy Security and a commitment to balanced and integrated energy policy