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The central role of energy storage in our renewable energy future

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28 Jun, 2024

This post was originally published on Sustainability Matters

As the impacts of climate change intensify globally and emission reduction deadlines loom, Australia must prioritise its power supply.

The 2019–2020 Australian bushfires, which triggered widespread blackouts nationwide, underscore the urgent need for power resilience. These events highlighted the critical necessity for reliable energy sources and robust energy storage solutions for businesses and communities alike. Moreover, they emphasised the importance of integrating renewable energy sources into the national grid to ensure a resilient and sustainable power supply during disruptions.

To do so, we must embrace digital technologies in the energy sector. These advancements not only support growth and sustainability but also enhance the resilience of our energy systems. By making renewable energy more practical and efficient, digital innovations pave the way for a stable and sustainable energy future for Australia. The transition to a digitally enabled, renewable energy infrastructure is not just an option — it is essential for securing our energy needs in the face of ongoing and future challenges.

Renewable progress in Australia

The government has set ambitious targets to expand renewable energy capacity, planning to add substantial wind and solar projects. This demonstrates Australia’s significant progress in adopting renewable energy systems (RES). Australian energy provider Origin Energy has recently demonstrated its strong commitment to renewable energy infrastructure by investing AU$400 million to build a 460 MW battery energy storage system (BESS) at its Victoria peaker plant.

Adopting RES helps drive the reduction of emissions and ensures energy availability. However, renewable energy generation is variable, depending on the fluctuating intensity of the sun and wind. To address this variability, we need grid-scale energy storage. Research indicates that implementing such solutions can help develop resilient grids capable of accommodating high levels of RES.

Long-duration storage

Long-duration energy storage (LDES) remains a significant technical challenge, as storage requirements can vary from hours to months. Pumped-storage hydroelectricity is widely used but holds untapped potential in many regions. Batteries, particularly lithium-ion, are the most scalable form of grid-scale storage due to their modular deployment and availability. Other technologies, like compressed air and gravity storage, play smaller roles in current power systems. Additionally, hydrogen storage holds promise for the seasonal storage of renewable energy.

Emerging technologies, such as flow batteries, also offer potential. Flow batteries use a liquid electrolyte to store electrical charge, scalable and adaptable to the variability of wind and solar generation. According to recent studies by 2040, LDES could deploy between 1.5 and 2.5 terawatts (TW) of power capacity globally, representing a significant increase from current levels.

Microgrid support

LDES can support micro-grid designs for large energy users, such as manufacturing and heavy industry. These facilities can deploy large battery systems, like lithium-ion batteries in intelligent uninterruptible power systems (UPS), to enhance storage capacity and facilitate greater RES adoption. Microgrids offer short-term storage capacity, helping to smooth peak grid usage and address variability concerns. This is especially beneficial for rural deployments and areas where proximity to RES generation is an issue. Microgrids ensure resilience, allowing power to flow even when generation sites are offline due to atmospheric conditions or disruptions.

As Australia moves towards implementing smart national grids, microgrids play a significant role. Large energy users can be rewarded for their storage and resupply capabilities, supporting peak grid usage. These measures can be quickly implemented through economies of scale, reference designs and vendors’ pursuit of efficiency. Organisations can confidently build out capacity while supporting decarbonisation efforts, moving Australia closer to a net zero energy future.

Digital innovation in power

The digitalisation of energy, or Electricity 4.0, is crucial for smart grids, microgrid integration, RES adoption and achieving net zero goals. Digital innovation enhances visibility in energy generation and distribution, eliminating waste and driving efficiency. Technologies like metering and monitoring enable better energy usage, while smart devices, apps, analytics and software allow for more efficient deployment of smart energy. These solutions enable everyone to contribute to a renewable-powered, sustainable energy future.

Renewable energy sources will form a significant part of future energy generation, crucial for achieving a decarbonised, net zero goal. Grid-scale energy storage and its resilience are critical for integrating renewable energy sources into digitised smart grids. Large energy consumers can support this transition by leveraging digitalised energy systems, increasing transparency and underpinning the development of sustainable digital economies accessible to all.

Australia’s renewable energy future depends on the effective integration of energy storage solutions. By embracing digital innovation and scalable storage technologies, we can build resilient and sustainable energy systems that meet our future needs.

Natalya Makarochkina.

Top image credit: iStock.com/JaCZhou

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Reaching net zero in the manufacturing sector

Reaching net zero in the manufacturing sector

In order for Australia to reach its goal of net zero by 2050, it needs the help of its manufacturing sector, which accounts for 10% of the nation’s carbon emissions. And the sector is pulling its weight, the Western Sydney Manufacturers Forum heard recently — developing ‘green concrete’, carbon-tracking sensors and technology which can minimise carbon emissions during beer fermentation.

More than 30 experts from universities, industry and government described multiple ways sustainability can deliver real-world impact, cost savings and market differentiation for manufacturers. The forum heard many examples, including an opportunity to reduce emissions from concrete production — which contributes around 8% of global carbon emissions, or more than aviation and shipping combined.

Professor Olivia Mirza from Western Sydney University described the initial pushback to the use of ‘green concrete’ — an eco-friendly alternative which is produced using waste materials — in the Parramatta Light Rail project.

“The initial cost for building [the light rail using green concrete] was let’s say 10 or 12% higher, but then if you do the cost-benefit analysis — less maintenance — it ended up saving 25%,” Mirza said.

The forum highlighted the importance of clear communication and education, suggesting the use of modern formats like social media platform TikTok to effectively engage different stakeholders, especially in the trades, around decarbonisation in building materials.

The aim of the event — hosted by the NSW Smart Sensing Network and the NSW Decarbonisation Innovation Hub at Penrith Panthers — was to showcase opportunities and help manufacturers and their supply chain navigate new emissions reporting requirements.

Dr Martin Ams, a product engineer at Macquarie University, said innovative optical fibre sensors are helping utilities like Sydney Water contribute to net zero by predicting concrete corrosion in wastewater infrastructure.

“Over time, concrete can actually capture and remove CO2 directly from the atmosphere through a process known as carbonation,” he said. “If you have concrete structures that are absorbing CO2 from your atmosphere, you want them to last long so you can keep absorbing this CO2.”

Dr Victor Hernandez Moreno from the UTS Centre for Advanced Manufacturing described how advanced automation and ‘digital twin’ technology can drive more sustainable production decisions for manufacturers. His team operates two mirrored beer-brewing facilities — in Sydney and Germany — that share a unified digital twin, allowing them to analyse data, enhance product quality and reduce carbon emissions.

Keynote speaker and Climate Change Authority Chair Matt Kean said advanced manufacturing in Western Sydney is poised to lead Australia’s decarbonisation efforts by electrifying industrial processes, improving energy efficiency and producing green materials like hydrogen.

“The [Authority’s] Sector Pathways Review revealed that Australia has a great shot at crafting the products, goods and services that will be in high demand,” Kean said. “As the world shifts to net zero, we must be prepared to back our entrepreneurs and innovators and remove policy and regulatory barriers that inhibit progress.”

Kean said products like renewable hydrogen, green ammonia and green metals were essential to reimagining Australian industry. “Importantly, they’re going to be in hot demand, not just domestically, but right across the globe.”

NSW Net Zero Commission principal advisor Manuel Weirich said there is lots of opportunity to reduce emissions in light industry such as manufacturers and smaller processors, which emit 45% of NSW industry emissions.

“These emissions come from things like burning gas in boilers, from engines and motors, chemical processes, calcination in bricks or in cement, and lots of other things,” Weirich said. “Some of the processes are difficult to decarbonise, but others already have solutions available … including heat pumps for water heating, electric forklifts, and better energy efficiency.  

“Manufacturing has a big role to play, to produce the clean materials, the low-emissions materials, and the products and machinery that other sectors use to decarbonise themselves.”

NSW Chief Scientist Hugh Durrant-Whyte said with investment in R&D, skills, digitisation and real-time data, and by preparing for mandatory reporting, Australia can build resilient supply chains and drive sustainable, high-value growth across all business sectors. 

“Digitisation will help identify gaps, improve performance and address skill shortages — especially in hard-to-abate industries,” Durrant-Whyte said. “Achieving net zero will benefit everyone. Small businesses can cut energy costs and preserve expertise through digitisation. Medium businesses can scale up and strengthen supply chains. Large corporations will streamline compliance, meet stakeholder expectations and drive sustainable growth.”

The Executive Director of the Advanced Manufacturing Readiness Facility (AMRF), Ben Kitcher, described how his organisation helps manufacturers adopt technologies that help them become profitable and sustainable.

“What we’re discovering is there is this mutual objective around decarbonisation which always leads back to productivity and profitability,” Kitcher said.

The forum heard that while digital literacy is strong among younger generations, manufacturing still suffers from outdated perceptions. It heard how SMEs in Western Sydney can stay competitive by embracing digital transformation, sustainability and circular economy principles. SMEs are also facing ongoing challenges in resourcing innovation and workforce development, but programs like CSIRO’s Generation STEM are stepping in with practical support through paid internships and university and industry talent matching.

“We have a lot of SMEs that come to us and say their challenge is recruitment and retention, but sometimes we’ve got some SMEs that come to us and say they don’t have the time to do this piece of work,” Generation STEM team leader Luana Caro said.

Chovil & Thake sustainability marketing specialist Hannah Welch said 45% of Australians always or often consider sustainability as part of their purchasing decision-making. She said manufacturers can leverage environmental, social and governance (ESG) data not just for compliance, but as a strategic marketing tool to attract investors and recruit staff.

Andrew Bedrossian, Manager of Renewable Manufacturing at the NSW Department of Climate Change, Energy, the Environment and Water (DCCEEW), said the Net Zero Manufacturing Initiative supports clean technology innovation and low-carbon product manufacturing, with particular focus on revitalising local solar manufacturing. He said there is growing industry appetite and significant investment interest, especially from Western Sydney manufacturers, pointing to strong potential for scale-up and impact.

“We have the world-leading IP here with some of the best brains in the business when it comes to solar,” Bedrosian said. “All the commercial windfalls are offshore. We don’t have anything here, and that’s a real shame. How can we change that?”

Image caption: Climate Change Authority Chair Matt Kean delivered the keynote speech at the Western Sydney Manufacturers Forum. Image credit: AM Visuals.

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