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June 9, 2025 48 mins
Battery storage is booming — but how does it really work, and why does it matter?
In this episode of the Fully Charged Show Podcast, Imogen sits down with Ed Porter from ⁨@modoenergy⁩ one of the UK's leading experts on battery energy storage systems (BESS), to demystify the critical role batteries are already playing in balancing the grid — and what’s still to come. From frequency regulation and price arbitrage to blackouts and the path to clean power by 2030, we explore how grid-scale batteries are transforming our energy system faster than you think. Ed shares his insights on:
  • Why batteries are replacing gas in grid services — and slashing costs.
  • What dynamic frequency response actually means
  • How the UK went from 0 to 5.3 GW of battery storage — and where we go from here
  • Why the “1.5-hour” battery duration isn't a limitation, but a smart design choice
  • How we plan to survive “Dunkelflaute” and keep the lights on in winter.
Enjoy! ⁨@fullychargedshow⁩ ⁨@EverythingElectricShow⁩ Find out more about the Modo Energy Terminal: https://modoenergy.com/ 00:00 Introduction 
01:01 Ad Break 
01:16 Modo Energy 
04:09 Why do we need Grid Scale Batteries? 
06:07 Batteries and frequency in the system 
09:07 80% Cost reduction vs gas! 
12:17 Are we deploying batteries fast enough? 
16:09 1.5 hour battery duration?! 
19:02 What about “Dunkelflaute”?! and a note on CCUS... 
26:00 Decoupling the cost of electricity from gas?! 
29:13 A whole new system? 
37:15 Should energy be free?! 
40:53 Negative pricing 
43:26 What the UK can learn from Texas 
46:00 Please like and subscribe!
 
 
This episode is sponsored by Duracell Energy! Enter the Free Prize Draw to WIN your own Duracell Energy bunny here: https://www.duracellenergy.com/givaway/ 
 
Get a free quote for solar and battery from Duracell Energy here: https://bit.ly/4i9ERid 
 
 
Why not come and join us at our next Everything Electric expo: https://everythingelectric.show

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Why are our episodes now sponsored? https://fullycharged.show/blog/dan-caesar-on-x-insta-youtube-and-why-we-made-a-contro[…]s-on-fully-charged-everything-electric-electric-vehicles-uk/

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