Utility scale batteries are proliferating across Western power grids, particularly in the US. And far more are set to come. These batteries offer the ability to manage grids, especially with the influx of renewables, or make economic returns on trading around them. Yet, their very presence is changing the dynamics of power markets. What are these batteries, where are they placed and who owns them? How and who trades around them and what do they mean for the future of power markets? All this and more is answered by our guest Casey Keller, Head of Assets and Development at Caerus Commodities.