Distributed energy storage has emerged as a promising solution to address these challenges.
Distributed energy storage refers to the deployment of small-scale energy storage systems near the point of energy consumption. These systems store excess energy during low-demand periods and release it during peak demand to reduce strain on the grid. This technology is revolutionizing the electric utility sector by enabling greater integration of renewable energy sources, enhancing grid flexibility, and improving overall system reliability.
The market for distributed energy storage is experiencing remarkable growth, driven by both regulatory support and technological advancements. According to a report by Grand View Research, the global distributed energy storage market is projected to reach $54 billion by 2025, growing at a compound annual growth rate of 30.3%.
North America is currently the largest market for distributed energy storage, accounting for over 35% of the global market. The United States, in particular, is witnessing significant growth in the deployment of distributed energy storage systems. This growth is largely attributed to policies incentivizing the adoption of clean energy technologies and the increasing interest of utilities in grid modernization.
Europe is also experiencing substantial growth in distributed energy storage, driven by supportive policies promoting renewable energy integration and greater energy system flexibility. Germany, Italy, and the United Kingdom are among the leading European countries in terms of installed capacity.
The future outlook for distributed energy storage in the electric utility sector is promising. As the demand for energy continues to rise and the need for sustainable solutions becomes more urgent, the adoption of distributed energy storage systems will play a crucial role in transforming the electricity sector. With its numerous features, advantages, and market potential, distributed energy storage is set to revolutionize the way we generate, store, and consume energy.
This has led to the rise of distributed energy storage, a transformative technology with the potential to revolutionize the way we generate, store, and consume electricity.
Distributed energy storage refers to the decentralized storage of energy at various locations within an electrical grid. Unlike traditional centralized energy storage systems, which rely on large-scale facilities, distributed energy storage can be implemented at residential, commercial, or industrial sites. These systems typically harness the power of batteries, such as lithium-ion, to store excess energy produced during times of low demand and release it during periods of high demand. This enables a more flexible and reliable electricity grid, reducing reliance on fossil fuels and improving grid resilience.
Distributed energy storage is a game-changing technology that offers numerous benefits for both consumers and the grid. By providing flexibility, managing peak demand, optimizing energy costs, and enabling greater renewable integration, distributed storage systems pave the way for a cleaner, more resilient, and sustainable energy future. As the adoption of renewable energy sources continues to accelerate, the importance of distributed energy storage cannot be overstated.
In conclusion, distributed energy storage has emerged as a critical solution to the challenges posed by the increasing deployment of renewable energy. Its ability to store excess energy, manage peak demand, and optimize energy costs has positioned it as a key enabler of a more sustainable and reliable electricity grid. With ongoing advancements in battery technology and falling costs, the rise of distributed energy storage is set to reshape the energy landscape and drive the world towards a greener future.
These systems provide numerous benefits for electric utilities, helping them overcome challenges and improve their operations.
Distributed energy storage plays a crucial role in enhancing the flexibility and reliability of the electricity grid. By strategically placing energy storage systems throughout the grid, utilities can effectively manage and balance the supply and demand of electricity. This reduces the risk of power outages, voltage fluctuations, and grid instability. Key advantages include:
According to recent studies, the deployment of distributed energy storage systems can reduce peak demand by up to 25% and decrease the risk of power outages by up to 90%. These statistics clearly indicate the significant positive impact of distributed energy storage on grid flexibility and reliability.
Energy efficiency and demand response are key focus areas for electric utilities. Distributed energy storage can actively contribute to optimizing energy efficiency and enabling effective demand response strategies. Some notable benefits in this regard include:
These advantages result in reduced energy wastage and reliance on fossil fuel-based power generation, ultimately leading to a greener and more sustainable energy ecosystem.
Cost savings and financial viability are crucial considerations for electric utilities. Distributed energy storage systems offer several cost-effective solutions and financial benefits:
These financial advantages provide utilities with additional revenue streams and contribute to overall operational cost reduction, ultimately benefiting both utilities and consumers.
Resilience and energy independence are becoming increasingly important aspects of the modern energy landscape. Distributed energy storage systems play a key role in promoting resilience and reducing dependency on centralized power generation by:
By promoting energy resilience and self-sufficiency, distributed energy storage systems help utilities and communities withstand unforeseen events and challenges.
As the energy landscape continues to evolve, distributed energy storage emerges as a promising solution for the challenges faced by electric utilities. Its ability to enhance grid flexibility, optimize energy efficiency, reduce costs, and promote resilience makes it a vital component in building a sustainable and reliable energy future.
However, despite the potential advantages, several challenges need to be addressed for successful implementation.
Renewable energy sources such as solar and wind power have gained significant traction in recent years. However, the intermittent nature of these sources poses challenges for electric utilities. Energy storage systems can address these challenges by storing excess energy during periods of low demand and supplying it during peak hours, enhancing grid stability, and maximizing the utilization of renewable resources.
Cost: One of the key challenges faced by electric utilities is the high upfront cost of implementing distributed energy storage systems. According to a report by Grand View Research, the global energy storage market is projected to reach $6 billion by 2025, indicating the substantial investment required.
Integration with Existing Infrastructure: Integrating distributed energy storage systems into existing grid infrastructure can be complicated. Utilities need to ensure compatibility and seamless operation with their current systems, which may require significant upgrades and modifications.
Regulatory Framework: The regulatory framework surrounding distributed energy storage is still under development in many regions. Uncertainty regarding regulations, incentives, and tariffs can deter utilities from investing in these systems.
Safety Concerns: The safe operation and maintenance of distributed energy storage systems are critical. Utilities must navigate safety protocols, such as proper installation, monitoring, and fire prevention, to mitigate risks and ensure public safety.
Distributed energy storage systems can address the challenges posed by intermittent renewable energy sources, enhancing grid stability and optimizing resource utilization.
The high upfront cost and integration complexities are key challenges faced by electric utilities adopting distributed energy storage systems.
The development of a clear regulatory framework is essential to encourage utility investment in distributed energy storage.
Advantages of distributed energy storage systems include enhanced grid resilience, peak shaving, optimized renewable energy utilization, and load shifting.
As the world increasingly embraces renewable energy, electric utilities must overcome the challenges faced in adopting distributed energy storage systems. Addressing cost concerns, integrating with existing infrastructure, establishing regulatory frameworks, and ensuring safety protocols are vital steps in unlocking the potential benefits of these systems. By doing so, utilities can contribute to a more sustainable and resilient energy future.
This article explores how distributed energy storage is transforming electric grids and the benefits it offers to consumers, grid operators, and the environment.
Distributed energy storage refers to a network of smaller-scale energy storage systems that are located close to the point of energy consumption. This decentralized approach to energy storage enables improved grid stability, enhanced reliability, and increased integration of renewable energy sources into the grid.
Consumers are at the forefront of the energy transition, and distributed energy storage offers several advantages for them:
Distributed energy storage also brings numerous benefits to grid operators:
The environmental benefits of distributed energy storage are significant:
As distributed energy storage technologies continue to advance, they are expected to play a crucial role in the transformation of electric grids worldwide. By fostering renewable energy integration, enhancing grid resilience, and empowering consumers, distributed energy storage is driving the transition towards a cleaner and more sustainable energy future.
Australian Energy & Battery Storage Conference, Sydney, 7 March 2023
Tim Jordan, Commissioner AEMC
*check against delivery
Good morning and thanks for the opportunity to speak to you today.
I’d like to acknowledge the traditional custodians of the land we’re meeting on, and pay my respects to elders, past and present.
I know everyone in this room appreciates the importance of storage in achieving Australia’s renewable energy goals and delivering our transition to net zero.
Your discussions over the next two days will focus on the latest developments in large-scale batteries, pumped hydro and community batteries.
You’ll look at individual projects, and how finance and technology are shaping the energy storage landscape.
There’s certainly a lot to explore.
I thought I could provide most benefit to this audience by opening with an overview of where we’re up to in the energy transition and the deployment of energy storage.
I’ll cover the various storage options available to us – because we’ll need them all if we’re to reach our energy goals.
I’ll discuss the scope of the task ahead of us and the work we’re doing at the AEMC to make it happen.
And I understand there’ll be a few minutes for questions at the end of my remarks.
The task ahead of us
So, let’s look first at the task ahead of us, spelt out succinctly in AEMO’s Integrated System Plan.
The ISP marks the true north of the energy transition.
And it’s a plan that pulls no punches.
It describes the transition to net zero as a ‘once-in-a-century transformation in the way electricity is generated and consumed’.
And it includes some eye-watering figures spelling out what that transformation entails, including:
Operating a reliable low-carbon power system means that energy storage is imperative – and AEMO also makes this clear.
It says building the energy storage to manage daily and seasonal variations in solar and wind generation is the most pressing need of the next decade.
It has consistently called for urgent investment in long-duration storage to support a low-carbon National Electricity Market – and those calls become more urgent with each coal plant retirement.
By AEMO’s current calculations, outlined in the ISP, 61 GW of storage capacity is needed by 2050 under the Step Change scenario.
That’s 17 times current levels.
A heavy lifter in this new landscape will be dispatchable energy storage, derived from multiple sources such as utility-scale batteries, pumped hydro, community batteries and other orchestrated distributed batteries.
Capacity from these quarters needs to increase from current levels of 1.5 GW to 46 GW, a 30-fold increase.
And we could need even more storage. The more we electrify our homes, our businesses, our heavy industry and our transport, the more renewables and storage we will need.
As this chart shows, we are at the start of a multi-decade journey to build the storage we need to deliver a green and electrified economy.
As we are all well aware, this is a capital-intensive endeavour and the investment required for us to meet these goals is substantial.
By our estimates, an additional $242 billion in generation, storage and transmission investment is needed to deliver the Step Change scenario in the ISP.
To be clear, that’s $242 billion above current commitments.
Storage accounts for about a quarter of this figure, requiring an additional $64 billion investment.
Given the scale of the task and the figures involved, it’s imperative that we explore all the associated issues – and acknowledge the obstacles along with the opportunities.
It’s appropriate that your discussions over the next two days will touch on all these elements.
For example, while we can all commend Malcolm Turnbull’s long-standing enthusiasm for pumped hydro, there’s a discussion to be had as to whether we can build it in a timely way.
We have the right geography. Professor Andrew Blakers’ team at ANU has done excellent work identifying 1,500 potential pumped hydro sites in Australia.
We have the track record, with pumped hydro operating for many decades at sites across the NEM.
But the fact remains: Australia has not had a new pumped hydro development in almost 40 years.
The Kidston Pumped Storage Project in far-north Queensland, due for completion next year, will be the first, and Snowy Hydro 2.0 is the only other project under construction.
How do we address the impediments that are holding us back in pumped hydro, in terms of capital, land use planning, communities and social licence? That is a problem we’ll need to solve together.
Community batteries are in their infancy in Australia and we have yet to see the role they will play in the energy transition.
There is likely much to be gleaned from the rollout of the federal government’s program, which will deploy 400 community-scale batteries serving up to 100,000 households across Australia.
And we don’t yet know whether households will embrace batteries at home as enthusiastically as they put solar panels on their rooves.
While more than 3 million households have taken up rooftop solar, only around 60,000 have bought batteries to date.
Will there be a rapid acceleration of household batteries, or will distributed storage sit mostly with commercial and industrial customers?
Recently, AEMC staff looked at the economics of household batteries.
They reached some promising findings around affordability which indicate batteries could become economic for many Australian households in the next few years.
For a start, installation costs for a typical residential battery have fallen, while the average battery life has increased.
The big breakthrough is that the average battery cost has halved over the past six years, from 80 cents per kilowatt hour to 39 cents.
It’s likely this cost will fall further as more batteries enter the market, manufacturing costs decline and technology continues to improve.
Accordingly, the typical payback period for household batteries has fallen from 19 years to just over 10 years.
What this means is that many households can now recoup the cost of their investment within the life of the product.
This marks a critical turning point in the economics of household batteries – a point at which consumers are much more likely to make the investment.
By 2025, a typical household will recoup their investment in just under seven-and-a-half years, well within the average battery’s 10-year lifespan.
Our estimate is based on conservative assumptions.
For example, we did not factor in the likely improvements in installation costs and battery life over the next three years, which would further reduce the payback period.
This is significant given the role that households and businesses will play in the energy revolution.
The ISP notes that consumer systems could account for nearly 20% of total underlying demand in the National Electricity Market by 2050.
The Energy Security Board estimates this could provide a potential $6 billion benefit to the Australian economy.
By 2034, the installed capacity of these consumer energy resources is expected to match the current utility-scale capacity of the National Electricity Market.
Households and businesses also feature heavily in forecasts around energy storage.
Of the 46 GW of dispatchable storage required by 2050, about one-third – 16 GW – will come from utility-scale batteries and pumped hydro.
The remaining two-thirds – 31 GW – will come from virtual power plants, vehicle-to-grid and other distributed technologies.
Recent developments in large-scale batteries are also encouraging.
In December, ARENA unveiled a $2.7 billion project pipeline, backing eight of the largest batteries ever built in Australia with a combined capacity of 2 GW and 4.2 GWh.
This will result in a 10-fold increase in grid-forming storage capacity.
This was followed by last month’s announcement of similar scope by Infradebt, backed by Mike Cannon-Brookes.
It plans to finance the construction of six to eight batteries, with a total capacity of 1.5 to 2 GW.
State and federal governments are investing heavily in renewable energy and storage solutions.
This includes large investments in battery facilities, such as the Waratah Super Battery in NSW, which is set to be the biggest in the southern hemisphere.
There are also opportunities for commercial and industrial customers, demonstrated by plans to install and operate Australia’s largest rooftop solar installation at Moorebank Logistics Park, with 60 MW of solar power and 150 MWh of battery storage.
The Smart Energy Council further highlights the scale and pace of change.
From 33 sites providing just over 1 GWh of electricity at the end of last year, it charts another 8.1 GWh that is due to come online this year.
The Council expects there will be 78 big batteries by 2025, with 14.5 GWh of capacity.
So, there’s a lot going on in battery storage, to ensure we have the infrastructure to support a high renewables system.
The balance of grid- and household-connected storage solutions adds a layer of complexity to our batteries challenge.
And it highlights the many strands that must be brought together to deliver an effective energy transition.
The AEMC’s role is to ensure we have the right market settings to facilitate the required investment in the energy transition, without imposing unnecessary costs on consumers.
We have navigated many changes to the rules, regulations and standards, with a lot more to come.
We’re mindful that the framework needs to be dynamic enough to accommodate technologies and strategies we haven’t seen before.
That’s why we canvas so widely across the sector, to capture emerging trends and their likely impact on different stakeholders.
And it’s why we urge you, as leaders in the energy storage industry, to remain closely involved in our work.
The AEMC is doing a lot of work to support the integration of energy storage into the National Electricity Market.
You can see some of our recent projects listed here.
Some of these changes are very technical in nature but collectively they’re designed to smooth the path for energy storage in a number of ways.
For a start, the rule changes work towards NEM integration for all kinds of energy storage systems.
This includes integrating consumers energy resources by establishing a two-way grid where distribution networks must accept exports into the system.
We’ve sought to provide better price signals for investment in fast-response technologies such as batteries and looked at market price settings that incentivise energy storage.
We’re working to cut the red tape, costs and logistical hurdles to make it easier for storage and hybrid systems to register and participate in the market.
And we’ve pursued a number of system services reforms to ensure the electricity system continues to operate effectively with energy storage added to the mix.
Our current and future workplan also covers a range of energy storage elements.
This includes important consumer reforms enabling households and businesses to engage in the energy transition.
We’re looking at ways to manage increased variability as the power system evolves, such as updating settings for contingency events and confirming allowable frequency ranges during normal market operation.
There is also an extensive body of work relating to the Commonwealth’s Capacity Investment Scheme and whether we need different investment signals in a changing energy market.
The Commonwealth’s new underwriting mechanism will fund around $10 billion of new investment in clean dispatchable power.
It will help to ensure Australia has an ongoing supply of cheap, local renewable energy, and reduce our exposure to global energy crises.
Equally, we are looking at how to make sure we have sufficient investment in the storage we need to manage reliability risk as the market transforms.
At the AEMC we’re looking at how the market settings provide those investment and operational signals.
This year, the Reliability Panel, which is part of the AEMC, will assess what reliability settings in the National Electricity Market should be later this decade.
This work will look at what the market price cap should be, to deliver reliable, affordable energy as reliability risks change.
It recognises for the first time that, with a very different mix of assets and a changing physical operating environment, we may need different investment signals to address low-frequency but high-impact events.
It’s critical that the AEMC’s work anticipates and captures these developments which are changing the energy landscape before our eyes.
Last year’s agreement by Australia’s energy ministers – to incorporate emissions targets into the National Energy Objectives – will fundamentally change the way we work.
It will have implications for the rules we make at the AEMC and the nature of the rule change requests we receive.
I’ve covered a fair bit of ground this morning and hopefully given you a few thoughts to reflect on over the next two days.
The Australian energy industry is attempting something that’s never been done before – and that can be daunting.
But we can all draw confidence from the way we’re responding to the challenges – and opportunities – that lie ahead.
There’s a big reform agenda underway. Governments and industry are actively engaged.
Innovators and technologists continue to bring seemingly impossible ambitions within our reach – and there’s capital to support it.
We have energy consumers willing to embrace the new energy landscape, as our world-leading rates of rooftop solar demonstrate.
And we’re all heading for the same true north.
That gives me abundant confidence in the future.