Redefining Resilience: Tim Montague on the Future of Clean Energy Storage

Unveiling the trends and innovations in clean energy storage with one of the industry’s leading thought leaders.

Welcome back to #ShortStorage, our series dedicated to exploring the trailblazers transforming the energy storage landscape. In this episode of the Beyond Lithium podcast, we’re joined by Tim Montague , President of Clean Power Consulting Group and host of the Clean Power Hour podcast – a show focused on innovations in renewable energy featuring industry experts discussing low-carbon technologies including solar PV, wind, and of course battery storage. Tim also runs the Clean Power Media Network, a group of fantastic clean energy podcasts including Beyond Lithium. On our own show, Tim shares his insights on the rapidly evolving field of clean energy storage, offering a glimpse into the innovations shaping the future.

The Unstoppable Growth of Energy Storage: Powering the Future with Solar and Wind

During Tim Montague’s over 30 years in the clean energy sector – including as a solar developer and consultant – Tim has witnessed remarkable changes in energy storage and the ways storage integrates into the grid. One indicator of the shift came in 2022, when investments in energy storage surged by 55% compared to the previous year. This growth reflects a broader trend where storage is increasingly recognized as a vital component of a modern energy grid rather than a mere afterthought. As renewable energy sources like solar and wind continue to grow, integrating storage systems has become essential.?

Notably, this shift is being driven by major players, such as Xcel Energy and Vistra, who are leading the transition from fossil fuel-based power plants to innovative systems that combine solar and storage. Tim highlights that this transformation is not just about adding storage but reimagining the entire energy ecosystem to enhance efficiency and sustainability, reflecting the broader adoption across both solar and wind energy sectors.

Charting the Future of Energy Storage Alternatives

While lithium-ion batteries have been the dominant technology in energy storage, Montague is enthusiastic about emerging alternatives. Technologies such as compressed air energy storage, flywheels, flow batteries, and aluminum batteries offer potential to complement or even replace lithium-ion systems. Each technology has its own set of advantages. For example, flow batteries are noted for their long cycle life and scalability, while aluminum batteries promise lower costs and improved safety. Tim advocates for a diversified approach to energy storage to address the diverse needs of the market and ensure a resilient energy future.

Funding the Future: Overcoming Bankability Challenges

In line with Montague's insights, a key challenge for non-lithium storage technologies is bankability. As highlighted by the World Economic Forum, financing battery energy storage systems (BESS) requires overcoming financial risks due to technological uncertainty and limited financial models. Securing low-cost capital and institutional investment is crucial for companies and projects in emerging economies, especially those focused on infrastructure, clean energy, and sustainable development. By involving policymakers and ensuring financial viability, non-lithium solutions can scale effectively. Public and private investment partnerships, like blended financing models, will be critical to making these technologies financially viable.?

Bridging Innovation and Clean Energy Transition

Tim is optimistic about the future of clean energy storage. While lithium-ion batteries will continue to play a crucial role, he foresees a period of substantial innovation. The next decade could see a significant diversification in energy storage technologies, from flow batteries to aluminum-based solutions, and maybe even some things we haven’t thought of yet. This diversification is essential for advancing the clean energy transition, making energy grids more resilient, sustainable, and adaptable to future challenges.

Listen to the Full Episode

For a deeper dive into Tim Montague’s perspective on the future of clean energy storage and the innovations driving the sector, tune in to our full conversation on the Beyond Lithium podcast.