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2025

Global Sustainable Aviation Fuel Report

Abbreviations

List of Abbreviations

  • ADB
    Asian Development Bank
  • ADNOC
    Abu Dhabi National Oil Company
  • ANAC
    National Civil Aviation Agency
  • ANP
    National Agency of Petroleum, Natural Gas and Biofuels
  • ARERA
    Regulatory Authority for Energy, Networks and the Environment
  • ASCENT
    Saf Testing and Analysis Aviation Sustainability Center
  • ATA
    Air Transport Action Group
  • ATJ
    Alcohol-to-Jet
  • BCAP
    Biomass Crop Assistance Programme
  • BETO
    Bioenergy Technologies Office
  • BNEF
    Bloomberg New Energy Finance
  • BOEPD
    Barrels of Oil Equivalent Per Day
  • BP
    Beyond Petroleum (Formerly British Petroleum)
  • bpd
    Barrels Per Day
  • CAA
    Civil Aviation Authority
  • CAAC
    Civil Aviation Administration of China
  • CAAFI
    Commercial Aviation Alternative Fuels Initiative
  • CAPEX
    Capital Expenditure
  • CARB
    California Air Resources Board
  • CCUS
    Carbon Capture, Utilization, and Storage
  • CFA
    Chartered Financial Analyst
  • CFD
    Contract-for-Difference
  • CFR
    Clean Fuel Regulations
  • GDP
    Gross Domestic Product
  • GEF
    Global Environmental Facility
  • GFDK
    Green Fuels for Denmark
  • GFT
    Gasification Fischer-Tropsch
  • CEF
    Connecting Europe Facility
  • CIB
    Canada Infrastructure Bank
  • CFS
    Clean Fuel Standard
  • CLEEN
    Continuous Lower Energy, Emissions, and Noise
  • CLEW
    Clean Energy Wire
  • CO2
    Carbon Dioxide
  • CORSIA
    Carbon Offsetting and Reduction Scheme for International Aviation
  • DFT
    Department for Transport
  • DGAC
    Direction Générale De L’Aviation Civile
  • DOD
    Department of Defense
  • DOE
    Department of Energy
  • DOT
    Department of Transportation
  • EAC
    Environmental Audit Committee
  • EASA
    European Union Aviation Safety Agency
  • EBACE
    European Business Aviation Convention & Exhibition
  • EBITDA
    Earnings Before Interest, Taxes, Depreciation, and Amortization
  • EBRD
    European Bank for Reconstruction and Development
  • EEA
    European Economic Area
  • EIB
    European Investment Bank
  • EJ
    Exajoule
  • ENAC
    Italian Civil Aviation Authority
  • EPA
    Environmental Protection Agency
  • EPC
    Engineering, Procurement, and Construction
  • EPE
    Energy Research Office
  • eSAF
    Synthetic Sustainable Aviation Fuel
  • ESG
    Environmental, Social, and Governance
  • ETJ
    Ethanol-to-Jet
  • ETS
    Emission Trading Scheme
  • ETS
    Emission Trading System
  • EUDP
    Energy Technology Development and Demonstration
  • FAA
    Federal Aviation Administration
  • FAST
    Fuelling Aviation’S Sustainable Transition
  • FBO
    Fixed-Base Operator
  • FEL
    Front-End Loading
  • FINRA
    Financial Industry Regulatory Authority
  • FT
    Fischer Tropsch
  • FY
    Fiscal Year
  • GHG
    Greenhouse Gas
  • GP
    General Partner
  • GREET
    Greenhouse Gases, Regulated Emissions, and Energy Use in Transportation
  • GWh
    Gigawatt-Hours
  • HAPSS
    Hydrogen Aircraft Powertrain and Storage System
  • HEFA
    Hydroprocessed Esters and Fatty Acids
  • IATA
    International Air Transport Association
  • ICAO
    International Civil Aviation Organization
  • IRA
    Inflation Reduction Act
  • IRS
    Internal Revenue Service
  • ISCC
    International Sustainability and Carbon Certification
  • JAC
    Junta De Aeronáutica Civil
  • LCFA
    Low Carbon Fuels Act
  • LCFS
    Low Carbon Fuel Standard
  • LLC
    Limited Liability Company
  • LLLP
    Limited Liability Limited Partnership
  • MASE
    Ministry of Environment and Energy Security
  • MaxSAF
    Maximum Sustainable Aviation Fuel
  • MDB
    Multilateral Development Bank
  • MGPY
    Million Gallons Per Year
  • MIT
    Ministry of Infrastructure and Transport
  • MOU
    Memorandum of Understanding
  • MSA
    Master Services Agreement
  • MT
    Metric Ton
  • MTJ
    Methanol-to-Jet
  • NREL
    National Renewable Energy Laboratory
  • CleanBridge
    CleanBridge
  • PE
    Private Equity
  • PET
    Polyethylene Terephthalate
  • PLF
    Property Linked Finance
  • PPP
    Public-Private Partnership
  • PtL
    Power-to-Liquid
  • PTX
    Power-To-X
  • R&D
    Research and Development
  • REAP
    Rural Energy for America Programme
  • RED II
    Renewable Energy Directive
  • RED-III
    Renewable Energy Directive Iii
  • RFNBO
    Renewable Fuels of Non-Biological Origin
  • RFNBOs
    Renewable Fuels of Non-Biological Origin
  • RFS
    Renewable Fuel Standard
  • RTFO
    Renewable Transport Fuel Obligation
  • RTHA
    Rotterdam The Hague Airport
  • SABA
    Sustainable Aviation Buyers Alliance
  • SAF
    Sustainable Aviation Fuel
  • SARV
    Southwest Airlines Renewable Ventures
  • SESAR
    Single European Sky Atm Research
  • SGC
    Sustainable Aviation Fuel Grand Challenge
  • SIPC
    Securities Investor Protection Corporation
  • TIRUERT
    Taxe Incitative Relative À L’Utilisation D’Énergie Renouvelable Dans Les Transports
  • UAV
    United Airlines Ventures
  • UCO
    Used Cooking Oil
  • USD
    United States Dollar
  • USDA
    United States Department of Agriculture
  • VC
    Venture Capital
  • ZCH
    Zero Carbon Humber

List of Abbreviations

The global market for SAF is in a nascent yet rapidly developing stage, driven by the urgent need to reduce carbon emissions in the aviation sector. There has been significant progress in SAF production, adoption, and regulatory support over the past few years. While challenges related to cost and scalability remain, the concerted efforts of governments, industry players, and technological innovators provide a promising outlook for the future of SAFs. The next few years will be pivotal in determining the extent to which SAF can transform the aviation industry and help achieve a more sustainable future for air travel. This chapter sets out a high-level view of the current state of the SAF industry, its key stakeholders and the economic forces at play.

The annual production capacity for SAF is still relatively limited compared to the total jet fuel demand. Estimates suggest that SAF production in 2023 was around 0.1% of the total aviation fuel consumption, though this number is expected to increase significantly in the coming years. The International Air Transport Association (IATA) estimates indicate that during 2024, even after anticipated increases in supply, the share of SAF may reach 0.5% of total aviation fuel consumption (IATA, 2023). These small percentages contrast starkly versus projections indicating that SAF could constitute up to 10% of global jet fuel demand by 2030, contingent on continued investment and supportive policies.

Decarbonization targets set by governments and associated policies that necessitate the aviation industry to move to greener fuels give guidance to future demand trajectories. Several countries have introduced blending mandates requiring airlines to use a certain percentage of SAF, these are crucial for driving demand and encouraging investment in SAF infrastructure. For example, the European Union’s ReFuelEU Aviation initiative aims for a 2% SAF blend by 2025, increasing to 63% by 2050.

To complement policy driven requirements, and to support commitment to state level targets, governments in the United States, European Union, and other regions have implemented subsidies, tax credits, and grant incentives to promote SAF production and use. The U.S. Inflation Reduction Act (IRA), for instance, provides significant financial incentives for SAF production

Figure 1: SAF Blending Commitments by Airline Carrier

Voluntary commitments to SAF by airlines are bolstering demand projections. Instead of relying solely on conventional carbon offset routes, airlines are increasingly adopting SAF offtake agreements to reduce their carbon footprints. As of December 2023, more than 43 airlines have made voluntary commitments to blend SAF into their fuel supply (HCS Group, 2023). In alignment with these commitments, the IATA, the trade association for the world’s airlines, comprising 330 members, has committed to reach net zero CO2 emissions by 2050 (IATA, 2023).

Whilst voluntary commitments are not legally binding, and policy makers can change course, the unified signaling from industry participants provides a clear direction for the SAF industry as a whole. Forecasts done by Dutch fuel supplier SkyNRG show an increase in SAF production capacity to 17.3 million tonnes by 2030, up significantly from 4 million tonnes in 2023. Similarly, to reach its decarbonization targets, the IATA estimates global demand will be in the region of 360 million tonnes by 2050, representing a 99.9% increase from current levels. Landmark legislation on SAF in the EU, the US, and the UK will act as the primary demand driver. SkyNRG estimates that Europe and the US could have around 120 million tonnes of SAF capacity installed by 2050 (SkyNRG, 2024).

Figure 2 – 2030 Projected Global Capacity by Region, Based on SAF Announcements and SAF Policies Implemented and Announced

Source: SkyNRG

Supply Gap & SAF Economics

The current global supply of SAF falls significantly short of the estimated requirement needed to meet decarbonization goals. The World Economic Forum (WEF) has estimated that between 40 to 50 million tonnes of SAF will be necessary to achieve these targets (WEF, 2024). However, existing offtake contracts account for only a small fraction of this requirement, with the IATA estimating around 13 million tonnes (IATA, 2023). This presents a compelling case for the SAF business case and growth opportunity whereby announced SAF production capacities cover only 30% to 40% of the projected SAF demand by 2030.

The supply gap essentially represents a lack of confidence from industry participants in committing to the future SAF economics and adoption. Several factors contribute to this uncertainty, including technology risks, financing dynamics, policy risks and country-specific challenges.

Figure 3: Projected Demand-supply Gap in Million Tonnes

Source: WEF, 2024

SAF’s share in total aviation fuel consumption (currently less than 1%) is typically exchanged at prices more than twice as expensive as conventional fuel. The SAF market, being relatively nascent with limited volumes, also suffers from opaque pricing based on private negotiations rather than market forces. The total cost for purchasing SAF, produced using the currently most commercially viable ‘Hydrotreated Esters and Fatty Acids’ (HEFA) method, is estimated to be 2.0 to 2.5 times higher than that of conventional fuel (WEF, 2023). For airlines, this translates to an estimated 300% increase in fuel costs, which significantly hinders large-scale adoption and commercial scalability.

Figure 5: Price Premium of SAF over Conventional Jet Fuel

Source: WEF, 2024

Although policy directives focus on stimulating demand through regulation they do not solve the challenge of increasing pricing across the supply chain and ultimately for the end customer. This creates a dislocation within the industry disincentivising airlines from being a first-mover. The absence of final investment decisions in Europe for green-premium production methods such as Power-to-Liquid (PtL) projects, which use exclusively renewable energy sources to produce SAF, highlights the cost challenges faced by financiers.

Looking ahead, the average energy cost in the aviation industry will depend on the share of renewable fuels, their production costs, and aircraft fuel efficiency. A 13% to 15% share of SAF by 2030 could increase average fuel costs by 15% to 20%. However, by considering aircraft fuel efficiency, the cost increase per revenue passenger kilometre might be significantly offset by improvements in fuel consumption. By 2050, the Mission Possible Partnership organisation estimates a fully decarbonized aviation sector could see a 90% to 190% rise in average fuel costs (MPP, 2022). Technological advancements, such as battery-electric aircraft and hydrogen-based fuels, could help reduce costs on a per passenger kilometre basis, however these projections carry significant uncertainty. Diversifying production pathways beyond HEFA, such as AtJ, may be key to finding more commercially viable avenues to SAF production and reducing costs.

To meet the increasing demand for SAF, substantial investment in infrastructure is crucial. By 2050, an estimated $2.4 trillion investment will be required for upstream infrastructure alone, encompassing refineries, storage facilities, and distribution networks. However, currently, less than 1% of the necessary infrastructure is in place globally, indicating a significant gap in investment (WEF, 2024).

To meet the increasing demand for SAF, substantial investment in infrastructure is crucial. By 2050, an estimated $2.4 trillion investment will be required for upstream infrastructure alone, encompassing refineries, storage facilities, and distribution networks. However, currently, less than 1% of the necessary infrastructure is in place globally, indicating a significant gap in investment (WEF, 2024).

Figure 6: Projected Average Cost Rise Relative to the Fossil-based Jet Fuel Cost as of 2022

Source: WEF, 2024

Source: WEF, 2024

The reluctance of infrastructure investors to commit to SAF projects stems from uncertainty regarding the business case and how costs will be distributed. The narrow profit margins and high capital costs associated with such projects further deter private equity (PE) involvement. To mitigate risk and attract investment, early-stage technologies like PtL may require state-level funding or public- private partnerships (PPP) to de-risk private sector involvement. Additionally, existing biofuel refiners could repurpose their facilities for SAF production, provided there are incentives and opportunities to do so.

The next 2-3 years will be crucial for scaling up SAF production, with approximately €1 trillion in capital expenditure (CAPEX) needed to establish 450-950 new production sites by 2030 (PwC, 2023). As production volumes increase and efficiencies improve, capex costs are expected to decline. Economies of scale in advanced technology systems that form integral parts of the production process such as electrolyzers and carbon capture will be critical to improvements in project economics .

Regions with high renewable energy penetration will be particularly attractive for investment, given the importance of renewable electricity in SAF production, especially for e-kerosene projects. Focusing on renewable energy sources not only supports the sustainability of SAF production but also enhances the long-term economic viability of such projects.

Several non-financial challenges also impede the growth prospects of SAF. Allocating agricultural land for biomass feedstock supply is particularly challenging in regions like Europe, where land for biomass feedstock might conflict with food production. For instance, meeting the UK’s biofuel demand with crops like rapeseed could require 68% of the country’s agricultural land. Competing land uses for renewable energy projects, such as wind and solar PV generation, also create conflicts (Institution of Mechanical Engineers, 2023). Other growing sectors with similarly high land requirements include nature-based carbon removal/sequestration and hydrogen storage (ScienceDirect, 2023). Unplanned land diversion for SAF energy crops could negatively impact the carbon footprint by releasing stored carbon from forests and reducing their sequestration capacity (WRI, 2023). A renewed focus on sustainable agriculture is fostering mutually beneficial ventures between producers and biomass feedstock suppliers (Greenair, 2023). Furthermore, new production pathways can diversify the feedstock requirements which may alleviate agricultural challenges.

The implication of the supply gap and economic challenges of SAF is an industry that is heavily dependant on, and therefore sensitive to, policy frameworks. Changes in regulations or incentives have the potential to significantly shape or alter the path to transition and decarbonization of the aviation industry. The lack of visibility on green airfare price elasticity and the degree of commitment from policy makers to require the aviation industry to go green creates a maze for investors and industry participants to navigate in determining the pathway to SAF uptake. Feedstock producers, SAF producers, ancillary fuel service providers, their development programmes and airlines will all form an important part of a collaborative effort to decarbonise aviation, whilst competing for the same policy driven economics.

Key Trends and Drivers in Energy Storage Capacity

The global energy storage industry is characterized by dynamic growth, fueled by various factors encompassing energy policy, technological advancements, and trade dynamics. This section provides an overview of some of the major trends and drivers shaping the industry on a global scale.

The price of Lithium-Ion battery pack rose for the first time in 2022, reversing an otherwise historically consistent declining trend.

Energy Transition and Renewable Energy Penetration

The increasing penetration of renewable energy globally, particularly in Europe, is driving the need for energy storage solutions. Just as Europe leads in renewable energy adoption, it also faces significant related challenges in grid management Energy Institute, 2023). Looking ahead at ambitious targets for renewable energy capacity expansion suggests integration challenges could intensify spurring the need for timely investments in energy storage capacities.

Source: Source: Source: Energy Institute Statistical Review of World Energy

High renewable energy penetration markets face several challenges, including grid supply curtailment, power market price cannibalization, and negative prices. Grid unpreparedness often results in curtailment, where excess renewable energy production exceeds grid capacity. California, a leader in renewable energy adoption, saw a significant 60% year-on-year increase in grid curtailment in 2022 ( (AJOT, 2023). This oversupply depresses bulk power market prices, impacting project profitability, as fixed contracted prices are common. Additionally, grid curtailment leads to instances of negative prices, where operators cannot absorb excess energy and must compensate generators. The UK’s National Grid paid £215m to generators in 2022 due to unabsorbed energy (Power Technology, 2023).

The rise of renewables also displaces conventional coal-based generation, accelerating the global phase-out of coal power. However, this poses challenges for grid operators, as coal plants provide baseload power crucial for grid stability. During the 2022 energy crisis, European countries faced coal plant postponements or reactivations due to restricted natural gas supply, highlighting the need for grid-scale storage and flexible energy sources.

Battery supply chain is central to the electric vehicle manufacturers and investors’ strategy. The access to resources and technical know-how is the crucial factor driving current investment plans in adding capacity. The Chinese predominance is a given, with three-quarters of global battery cell manufacturing and 90% of anode and electrolyte production. Efforts are underway to moderate the Chinese concentration. The US and European investments are in this direction.

BNEF’s annual Lithium-Ion battery supply chain ranking had China at the top spot. Canada however rose to the second spot this time around, resulting not only from endowed resources but other supporting factors including infrastructure, environmental-social-governance factors and innovations. Interestingly, the US dropped to third spot in the ranking despite the strong policy basis arising from its Inflation Reduction Act.

Relative Share of Coal and Renewable in Global Power Generation

Note: Data refers to share of energy units generated by renewable and coal-based sources.

Source: Energy Institute Statistical Review of World Energy

Role of Policy support

Policy and regulatory measures play a crucial role in shaping the energy storage industry, given its early stage of techno-commercial viability, similar to renewable energy systems. Policy targets set by national or provincial authorities drive the energy storage project pipeline and investor interest, particularly in regions like Europe where renewable energy penetration is rapidly increasing. The European Union’s response to the 2022 energy crisis by setting steeper energy transition targets further highlights the influence of credible policy target setting (Visual Capitalist, 2023).

Renewable Energy Targets in the Major Markets/Regions

Country/Regrion Renewable energy target of 2030
India 40% zero-carbon generation by 2030 (including nuclear power)
China 28% renewables by 2030
United States 739GW of wind and solar by 2030 to reach zero-carbon electricity by 2035
United Kingdom 60% renewables by 2030
European Union 42.5% renewables by 2030, under the REPowerEU

Source: Visual Capitalist
In the United States, the Inflation Reduction Act (IRA) has had a significant impact on the energy storage industry. This unprecedented policy measure provides substantial funding and tax incentives for standalone battery-based storage projects, with eligible projects receiving an investment tax credit of 30%. Further additional incentives can extend tax benefits to reach up to 70% for the project developers/owners (PV Magazine, 2023). The IRA provisions offer long-term visibility of incentives and promote the transition to clean energy by providing additional incentives for storage projects located in traditional energy communities, such as coal-based power plant sites. About 60GW of potential new storage capacity could be attributed to the US IRA (Energy Storage News, 2023).

Source: SNE Research

Source: PV Magazine

Elsewhere, many countries, including those in Europe and China, support battery storage projects through government-led auctions or subsidy programs. These are typically designed as technology-neutral power procurement contracts but largely attract hybrid and standalone storage projects. European energy storage auctions, such as Germany’s innovation tenders, allocate storage capacity through competitive bidding, encouraging hybrid and standalone storage projects. German authorities plan to award about 4GWh worth of storage contracts by 2028 (Fluence, 2023). Eastern European countries are also embracing battery storage, with plans to allocate grid connections to significant capacity and make regulatory changes to facilitate market participation. In Poland, there are plans to allocate grid connections to 9GW of battery storage projects, while another 16GW are registered for an ongoing market auction as of December 2023 (Energy Storage News, 2023). Hungary is in the process of implementing the first energy storage auction targeting 900MWh by 2026, and Estonia has announced energy-storage-specific grants pending the finalization of regulations.

China, the dominant country in battery production, implements subsidy programs to incentivize new energy storage capacities. In Xinjiang province, standalone battery storage units are entitled to compensation for discharged energy, with specific incentives for peak shaving and ancillary services. The standalone battery storage units were entitled to a compensation of CNY0.2/kWh (discharged energy) till 2025, with a 20% tapering off in each of 2024 and 2025. The subsidy scheme also outlined the incentives for specific services – peak shaving and ancillary services could qualify for CNY0.55/kWh in charging and CNY0.25/kWh in discharging without simultaneous capacity compensation (CESA, 2023).

Similarly, Chile is proactively promoting energy storage to complement its renewable energy generation base. In June 2023, the government’s energy authority announced preliminary bidding information to procure 5.4GWh split for contracted delivery in 2027 and 2028. In the same period, the government also announced an additional $5 billion worth of investment towards the energy storage systems ready for commissioning within 2026. Notably, most of the planned storage units are co-located batteries with utility-scale solar PV generation units in the famed Atacama Desert region. Chile’s latest policy announcements follow previous steps at facilitating market participation of the grid-scale storage units (Energy Storage News, 2023).

Overall, the policy-led funding approach is expected to gain traction in various markets as energy storage projects become increasingly important for achieving climate mitigation, decarbonization, and net-zero goals. As clean energy investments continue to grow globally, greater policy support and funding can be anticipated to accelerate the deployment of energy storage technologies.

Installed Capacity and Growth

The global push towards energy transition is driving accelerated deployment of storage capacity, with tracked battery storage capacities worldwide experiencing nearly 100% year-on-year growth in 2023 (BNEF, 2023). Led by the US and Chinese markets, battery storage capacity expansion has been fuelled by supportive regulations, policy funding, targets, increased energy market volumes, and improved cost economics. Battery projects are becoming integral to clean energy investment plans, with an estimated $37 billion invested in batteries in 2023, triple the amount in 2021 (IEA, 2023).

Note: The data point for 2023 is an estimate based on BNEF’s expected new battery project build
Source: BNEF Energy Market Outlook

As the demand for energy storage continues to rise, so does the projected annual capacity addition. This growth will stem not only from an increase in the number of projects but also from larger-scale projects. In August 2023, Vistra Energy, a US-based retail power supply and generation company and a battery storage developer, announced the completion of Phase-III of its Moss Landing project, bringing its total capacity to 3,000MWh. This marked the project as the world’s largest, surpassing the 1,400MWh Californian battery storage project that held the title in 2022 Electrek, 2023) Energy Storage News, 2023). With enabling regulations and financing, more developers are likely to enter the market. In December 2023, Australia’s largest grid-scale battery, with a capacity of 1,000MWh, received final investment approval for construction commencement in 2024 ARENA, 2023).

Source: Canadian Solar Investor Presentation (original data sources attributed to BNEF, IHS and Wood Mackenzie)
Pumped hydropower, although a lagging sub-segment of energy storage, is experiencing renewed investor interest due to its capabilities as a mature long-duration energy storage resource. Despite challenges such as the gestation period, development obstacles, uncertain project costs, and environmental concerns, pumped hydropower capacity has shown a pickup since 2021 (IRENA, 2023). Examples like the £1.5 billion Coir Glas Pumped Hydropower Storage project highlight this resurgence, marking the first UK hydro investment in the last 40 years.

Note: The capacity figure for 2023 is an estimated one using the average annual growth rates of 2021 and 2022
Source: IRENA, Alchemy Research

The drive for larger storage capacity sizes is closely linked to the demand for cost-competitive options and improved storage duration. In light of this, there is a renewed focus on pumped storage units in the upcoming energy storage growth. Leading energy storage markets are seeing an increase in the project pipeline for such projects. Despite significant upfront costs and gestation periods, the potential benefits of cost-effective and efficient storage solutions are compelling. Additionally, technological advancements in other battery options also contribute to this trend. Many advanced technologies, while promising, are still far from mass commercialization. Unlike pumped hydropower, new and emerging battery storage technologies may require additional financial support to achieve viability.

Major Pumped Hydro Storage Projects Under Planning or Development

Project Company Particulars
Coire Glas 1.5GW UK’s first large-scale pumped storage project proposed in over 40 years. The final investment decision is expected in 2024.
Snowy 2.0 2.2GW Australian government approved the AUD12 billion project’s revised development plans in December 2023.
Ebensee 170MW Austrian project, targeting 2027 for commissioning.
Red John 450MW Statkraft acquired this UK project from Intelligent Land Investments Group in December 2023.

Source: Power Engineering International, PV Magazine, Statkraft company press release

Progressively, there is a strong preference for co-located battery storage installations, led mainly by solar PV and battery combinations. A weak grid integration in most markets makes co-located batteries attractive in managing grid scheduling. An added benefit is the lower capital outlay and land and grid infrastructure optimisation. The US market’s project pipeline for 2024 has a 70:30 split between co-located and standalone battery assets (Energy Storage News, 2024). Till 2022, co-location was incentivised with tax credits in the US market. The predominant share indicates that tax credits are not the only incentives for developers in this model.

The most common battery co-location projects are with solar PV. It is partly related to the relatively faster growth in utility-scale solar PV, among other renewable energy technologies. Battery storage co-located with a solar PV plant would enable grid services such as dynamic containment, besides mitigating the profitability risks that arise from excess supplies in the grid. Project pipelines in major battery storage markets, such as the US and UK, show a progressively rising interest in solar-plus-storage projects. The relatively higher investment returns in such projects potentially outweigh the complexities (such as separate permits, feasibility studies, etc.).

Some investment funds have also adopted the retrofitting route in battery colocation. In 2023, NextEnergy Solar Fund initiated retrofitting of battery storage to its solar PV portfolio for better returns. The declining subsidies in the renewable energy markets worldwide make co-located battery storage a better proposition for investors and developers seeking to maximise returns.

By the end of 2022, battery usage was more than thrice the level in 2020.

Emphasis on Utility-scale storage

Grid-scale storage is characterised by capacity sizes much higher than those used for residential or commercial purposes. The application of utility-scale batteries spans various roles in grid management such as SATA, frequency regulation, and supply arbitrage which has gained prominence alongside rising renewable energy deployment. Existing utility-scale energy storage, formed primarily of pumped storage, is already the largest portion of installed global energy storage capacity. IEA estimates 65% of existing energy storage facilities are grid-scale projects (IEA, 2023), largely reflecting commitments made by large utilities companies globally.

Note: The above data is as of 2022
Source: IEA

Government-backed large-scale tenders play a pivotal role in this space. For instance, New York State aims to add 6GW of storage capacity by 2030 through centralized procurement addition (Utility Dive, 2023), while Australia’s Capacity Investment Scheme tender aims to expedite grid-scale storage capacity procurement (Construction World, 2023). In India, a planned $2.6 billion subsidy package aims to promote grid batteries (Mint, 2023). These tenders not only contribute to project pipeline capacity but also generate economies of scale, potentially leading to lower average costs.

Note: Data above is based on estimated/projected capacity addition of 2023
Source: McKinsey

The relative share of plug-in hybrid vehicles in overall electric vehicle sales is in a declining trend.

Cost Economics

The dominance of Lithium-Ion battery technology remains strong in the storage sector, supported by its maturity and economies of scale driving down costs over time. Recent surveys, such as the BNEF Battery Price Survey, show a downward trend in average battery prices, partly due to decreases in raw material and component costs (BNEF, 2023). Notably, Lithium prices in China, the largest producer globally, fell 77% in 2023 – driven by a rapid growth in supply supported by the Chinese subsidy support for electric mobility Reuters, 2023).

Note: Data for 2023 is as of November 2023
Source: BNEF Annual Battery Price Survey of 2023

However, battery prices vary widely across regions due to local market dynamics. China boasts lower average battery pack prices compared to the US and Europe, attributed to intense price competition and rapid manufacturing capacity expansion. Geopolitical factors, such as new US regulations targeting Chinese-origin battery components, introduce additional price distortions CNN, 2023).. Whilst the average battery pack price in China, as of 2023, was reported at $126/kWh, elsewhere in the US and European markets prices were 11% and 20% higher respectively.

Despite these challenges, battery storage units are increasingly competitive in the grid power mix, particularly in hybrid renewables plus storage projects Lazard, 2023). Many of these projects are now competitive against gas-based peaking power units, driven by revenue stacking opportunities from grid services and wholesale power market transactions.

Comparative view of Unsubsidised Levellised Costs across Fuel Mix vis-à-vis Batteries

Note: Above data is illustrative, as of April 2023, and refers to the US market
Source: Lazard

The downward pressure on battery metal prices is anticipated to continue through 2024 and 2025 before any signs of recovery in the price trend emerge. Both demand and supply factors contribute to this outlook. On the demand side, a weaker electric vehicle market, driven by a slower Chinese economy, sluggish US market sales, and high interest rates, has dampened demand. This is significant as over 90% of battery demand comes from electric vehicles. Concurrently, miners have expanded the supply of critical minerals in anticipation of future demand. This expansion includes major battery metals such as Lithium, Cobalt, and Nickel. The pricing pressure is expected to persist due to the influx of additional supplies into the market as leading producers have expanded capacities in anticipation of future demand, despite the long lead times involved.

Lithium Supply and Price Outlook

Note: Data for 2023 is as of November 2023
Source: BNEF Annual Battery Price Survey of 2023

Lower raw material prices are expected to alleviate the cost pressures on battery storage developers, particularly as they prepare for capacity auctions by regulators and grid operators. According to the BNEF battery survey of 2023, the projected average battery pack price for 2024 is $133/kWh (BNEF, 2023). BNEF’s estimates further suggest that average battery pack prices could decrease to $113/kWh in 2025 and continue to decline, reaching below $100 by 2030 Energy Storage News, 2023). As of December 2023, BNEF’s tracked benchmark LCOE for four-hour battery storage reached its lowest point in decades, being 22% lower than the peak in 2022 BNEF, 2023).

Crucially, the reduction in battery pack costs resulting from lower battery metal prices has been able to counterbalance the impact of higher financing costs in recent years. However, high interest rates remain a significant factor. There are expectations of a potential easing in 2024, with the US central bank’s benchmark rates possibly peaking during the year before a potential reduction. Nonetheless, high interest rates are just one element in a mix of factors—including supply chain uncertainty, foreign trade restrictions, and regulatory developments—that collectively contribute to costs exceeding estimated ranges. It’s worth noting that as of Q1 2023, over three-quarters of US-based clean energy projects, including storage projects, face delays in their planned commissioning within or before 2025 due to a combination of cost factors Utility Dive, 2023).

Revenue Streams

Battery storage projects typically adopt a revenue-stacking strategy, which involves leveraging multiple revenue streams simultaneously. These revenue streams commonly include arbitrage, ancillary services, and participation in capacity auctions.

The revenue-stacking approach allows projects to diversify their income sources, reducing reliance on any single revenue stream and enhancing overall profitability. By tapping into various revenue streams, battery storage projects can optimize their financial performance and mitigate risks associated with fluctuations in market conditions or regulatory changes.

Moreover, the scope of revenue stacking is a critical consideration in the financing decision-making process for battery storage projects. Investors and financiers assess the potential revenue streams available to a project and evaluate their stability and growth prospects. Projects with robust revenue-stacking opportunities are generally viewed more favorably by investors, as they offer greater financial resilience and potential for attractive returns on investment.

The revenue opportunities for battery storage projects vary across different local power markets, depending on their stage of development and maturity. Here are some notable illustrations:

Vertical Integration by Select Major Electric Vehicle Manufacturers

Country/RegionBattery Storage Revenue Drivers
Germany
The utility-scale battery storage market in Germany is growing rapidly, offering opportunities for new entrants. Ancillary and trading markets are promising revenue segments, with potential growth in day-ahead and intraday optimization. Regulatory measures, such as the introduction of a new capacity mechanism, could enhance revenue certainty for developers (Ion Analytics, 2024), (Timera Energy, 2023)
Italy
Italy’s utility-scale battery storage market is nascent, with policy and regulatory measures incentivizing investments. Battery storage systems were allowed to participate in the wholesale and ancillary services segment in July 2023. A structural reform of dispatch procurement after 2025 may introduce new market-based services for battery storage units. Capacity markets offer 15-year contracts for new capacities, and regulators have proposed an auction-based scheme for procurement (Aurora, 2023)
United States
The ERCOT Contingency Reserve Service (ECRS), introduced in June 2023, addresses frequency recovery during generation loss and provides capacity during net load uncertainty. Despite running only 21 days in H1 2023, ECRS contributed 15% of battery storage revenues (Modo Energy, 2023)
United Kingdom
Frequency response services were previously dominant revenue sources for battery storage units but have become saturated due to rapid capacity addition. Balancing Mechanism and Arbitrage have emerged as primary revenue sources, with the grid operator projecting GBP2 billion spending on grid balancing by the end of 2024. Capacity markets also play a crucial role in providing guaranteed contracted payments (PV Magazine, 2024), (Energy Storage News, 2024)