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BTAC is a biannual report cowritten by PVEL and Exawatt which focuses on the critical issues for US-based PV installers looking to connecting co-located storage to their solar farms

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The report leverages Exawatt’s detailed supply chain and bottom-up cost analysis with PVEL’s US based battery testing and policy insights to allow readers to make key decisions in a complex market.

The BTAC includes the following:

  • Supply chain analysis of critical materials for US based grid storage
  • Forecasts on how much LIB cells will cost out to 2025
  • Analysis on alternative energy grid storage technologies to lithium-ion batteries

Meet the energy storage team


Edward Rackley

Research Analyst (Energy storage)

Edward Rackley

Ed is the leader of Exawatt’s energy storage team, using his electrochemical materials knowledge to inform our supply chain analysis and bottom-up cost modelling. He has a PhD in Chemical Engineering from the University of Sheffield, specialising in solid oxide fuel cell anodes. Ed’s industrial experience includes research into novel battery current collectors and spinel cathode synthesis.

Aaron Wade

Research Analyst (Energy storage)

Aaron Wade

Aaron focuses on detailed cost modelling for current- and next-generation cells in Exawatt’s energy storage team. He joined Exawatt as part of the Faraday Institution PhD industry placement programme in May 2021 and became a part-time research analyst in August 2021. He is currently in his final year of a PhD based at UCL, investigating the degradation of lithium-ion battery electrodes.

“During my stint as Head of Technology Trends at the Advanced Propulsion Centre (APC) we were desperately looking for proper bottom-up cost analysis for batteries. Exawatt was one of very few who could. Applying the approach and techniques perfected in PV and semiconductors to batteries provided great results fast. I have found Exawatt’s ability to address complex problems and willingness to challenge conventional thinking a great asset that I hope to use again in future.”

Dave OudeNijeweme
Senior Director for Battery Materials, Worley

“When developing solid-state pouch cells for EVs, design to cost is critical for Ilika. Our engineering team needed to select electrolytes, dopants and additives that would be affordable and available when deployed at giga scale. Running a program with Exawatt allowed us to make better material selections and gave us insights into the rates of learning necessary on all items in our bill of materials.”

John Tinson
VP Sales and Marketing, Ilika

“Exawatt has an outstanding and friendly team. During our collaborations, Exawatt has displayed deep technical insights into battery supply chain analysis, demand forecasting and cost modelling.”

Dr Robert Pell
Founder and CEO of Minviro

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