The days of worrying about the intermittency of solar and wind farms are quickly receding into the past as battery storage systems are added to existing plants, and new renewable plants are increasingly equipped with large battery storage systems from the outset as so-called “hybrid” power plants. In fact, 25% of all new solar PV plants waiting to connect to bulk power systems are now hybrid plants incorporating battery systems, and on the California wholesale power market, 96% of solar PV and 75% of wind projects launched in 2019 were paired with batteries. All at prices that beat the cost of conventional power plants.
But figuring out the best way to deploy utility-scale battery storage systems isn’t just a matter of dispatchability and system balancing. In fact, it turns out that tax credit incentives and market rules are far more significant determinants. That’s one finding of a new research paper led by several researchers at the Lawrence Berkeley National Laboratory, who modeled various ways of pairing battery storage systems with utility-scale wind and solar farms. In this episode, we explore the details of this modeling with one of the paper’s authors and speculate that it might actually be better to deploy large scale storage systems independently of wind and solar farms, if market rules were more supportive of the strategy.
Veteran energy researcher Jonathan Koomey rejoins us for another anniversary show! In this episode we talk about California’s new plan to obtain 100% carbon-free power; the potential for “peak gas” as utility-scale solar-plus-storage and wind plants beat gas on price in the US; the outlook for nuclear power in the West; how to know when the numbers you’re seeing aren’t right, and how to understand data; and the degree to which energy transition can help us stay below 2 degrees C of warming. We also discuss some of the confusing issues with energy data and how that influences our forecasts for primary energy consumption, and we’ll talk about the future need for climate modeling. It’s a wide-ranging, fast-paced romp through all sorts of geeky energy topics that definitely deserves its Geek Rating!
The cost of solar has dropped so quickly that we’re suddenly in a world nobody really anticipated. Utility power procurement is having to pivot to solar under $0.03/kWh…including dispatchable solar with storage, displacing not just coal and nuclear, but natural gas power plants, which everyone assumed we would continue building for decades to come.
So what’s next for solar? Are we ready to phase out its incentives? Do we still need solar advocacy? And are we at risk of solar becoming so cheap that even solar developers can no longer afford to build it? Does the sun actually need to be tamed?
Our guest in this episode has a unique point of view on these issues. Adam Browning is the co-founder and Executive Director of Vote Solar, a non-profit advocacy organization in the US with the mission of bringing solar energy into the mainstream, and he knows the history and the current prospects of solar better than most.