Correction to: Nature Energy https://doi.org/10.1038/s41560-021-00805-w, published online 12 April 2021.

In the version of this article initially published, there was an error in Fig. 1c. In the original version, seven extraneous light-blue data points appeared in the upper half of the figure. The error was in presentation only, with no bearing on the analysis or conclusions in the article.

The figure has been corrected in the HTML and PDF versions of the article.