My rural electric coop limits the amount they will pay for end user generated solar power per month. They will never let the bill zero out or be negative.
Negative pricing during peak solar hours has also been happening in California. Longer-term negative pricing has been happening for more than a decade in the Columbia River basin, due to high wind (and wind subsidies per MWh) and high hydroelectric flows.
It’s pretty simple. Negative pricing creates a strong incentive for energy storage. We need more energy storage to support more renewable energy. This was inevitable. I’d love to see a future where people driving their EVs get a pop-up alert: FREE CHARGING AVAILABLE FOR THE NEXT 35 minutes. And the charging network gets paid to take up excess load.
All of transportation cannot be shared or multi-passenger because some trips are to places where nobody else is going. Perhaps in dense cities, which will take at least 50 years to rebuild in a walkable way in the US. But people will still want to enjoy natural places - lakes, rivers, mountains, deserts, forests, and snow, and there won’t always be rails built to access those places. Electric mountain bikes with a 500 mile range maybe? Personal transportation will always be around.
In isolation, it's very obviously a bad thing, because it makes solar less profitable and might slow down the switch to renewables.
In a wider context, it can still be seen as a god thing as it means there has been a significant pivot to solar already and luckily it's also a very solvable problem. There just needs to be more energy storage.
It's a sign of a grid stability issue. A power grid needs to balance input, output and losses. An imbalance in either direction is bad.
A negative price means the grid is worried about a collapse. They are willing to pay sinks to come online NOW, or for production to go offline.
The solution isn't less renewables however! It's more storage, and better smarts on the grid. Most grids are poorly designed for renewables, and their loads characteristics. That needs to change rapidly.
This is happening, to a degree, in most of Europe. Storage is the answer as described in the article. Unfortunately politics are not proactive, you need to break the system before something happens... and now the system is broken, yeah!!!
This is HORRIBLE! How will the JOB CREATORS (who keep laying off thousands of workers) make any MONEY for IMPROVEMENTS to give us CHEAPER and better product?
As predicted. The EU policies on solar will drive the same excess in every country. Germany is also going for hydrogen with a large hydrogen network already built and excess electricity would be a great source of power for green hydrogen production (which is vehemently inefficient, but if it's free...)
One of the nuke plants I work at put in a hydrogen electrolyzer two years ago for this reason, and they are doubling it's size next year because it worked so well. Their "problem" is different than solar. Nukes constantly put it the same amount of power, so they feed the excess into the electrolyzer when demand is low, but it's basically the same idea. Electrolysis id inefficient, but if you're producing more energy than you can feed into the grid you may as well do something useful with it.
Same reason I think carbon capture is worth looking into. It should not be a primary solution. I know some fossil fuel groups are behind it today. But in the not too distant future we are going to have excess green energy. Capturing carbon is worth seeing if we can scale to the point of being one of our tools. People are quick to scoff at the idea. Much like I've seen with hydrogen. But I'd rather try many options to reverse change that might not be perfect. Instead of hoping we transition power sources and that alone was enough.
Practically free solar power on the grid does not make the chargers and the infrastructure needed for them free. Tho yeah you're probably overpaying for it on days with high renewable power generation.
In fact we have to pay the neighboring countries to take the excess power in order to lighten the load on the grid. Switzerland and Austria will then use the power to pump up water to store the energy.
In fact we have to pay the neighboring countries to take the excess power in order to lighten the load on the grid. Switzerland and Austria will then use the power to pump up water to store the energy.
The risk is never this period. It's december-february, if there's the certainty of low solar production (during hours when it's needed least) and the possibility of low wind combined with a lengthy period of strong cold weather. That's when the fossil is needed...