Solar Power is the third studio album by New Zealand singer-songwriter Lorde. It was released on 20 August 2021, by Universal. Inspired by the death of her retriever mix dog Pearl and visit to Antarctica in 2019, the album was written with producer Jack Antonoff to capture solipsism and summer escapism, mainly focused on Lorde's leisure time in her homeland New Zealand, simultaneously expressing her disdain for fame and celebrity culture.

Classified by Lorde as her "weed album", Solar Power is a psychedelic pop and indie folk effort build around acoustic guitar arrangements, marking a departure from the electronic-based music of her previous works. It was met by polarised reviews from music critics, who commended Lorde's matured vocals, but were divided over its songwriting and production. Lorde later described the response to the record as "really confounding", and "painful". The album was led by its lead single and title track, "Solar Power", followed by "Stoned at the Nail Salon", "Mood Ring", and "Fallen Fruit."

Commercially, Solar Power reached number one in Australia and New Zealand, and charted inside the top ten in various countries. Lorde opted against manufacturing CDs for environmental reasons, releasing Solar Power to digital music platforms, streaming services, and as vinyl LPs only. A Māori-language EP, titled Te Ao Mārama, was released on 9 September 2021 as a companion project to Solar Power. It consists of Māori versions of five tracks from the album. To promote the album, Lorde embarked on her third concert tour, the Solar Power Tour.