The battery gap

I explained to a friend this week my concept of “battery gap”.

He thinks batteries will not “be enough”, are “too far away” and “too expensive” for grid energy storage… Well, we’ve heard that old story before.

We heard that old belief that solar energy would never be competitive or only represent a small portion of energy generation, right? Or the one that grids had an inherent limit for absorbing renewable power (yes, some people once said it was 15%) Or that to reach a high degree of renewable penetration, the land use would not leave space to grow food… And such.

Well, the DOE has published an update on the accelerated escalation of LEDs, wind, solar, EVs and batteries. The graphs and the facts are impressive.

The difference in price for renewable energy Vs conventional grows quickly. So there is growing “space” to pay for energy storage. We could represent as follows:

battery-gap-2

This “battery gap” is also increasingly relevant because of the drop in battery costs, following a trend similar to the solar panels. This makes the gap’s significance grow exponentially in the energy storage capacity the gap can pay for.

Storage is both necessary for transport electrification (Electric Vehicle batteries) and grid energy storage for renewables. But those who follow this blog know that there might even be no need for batteries without wheels.

Besides, before storage, it’s more efficient to make demand more flexible, so we don’t flatten the curve, but make it adaptive to when there is abundant energy.

In any case, there’s going to be plenty of battery gap.

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