“Solar Power,” the third album from New Zealand singer-songwriter Ella Yelich-O’Connor, more widely known as Lorde, is a sharp sonic departure from her earlier work. So far, “Solar Power” has been met with mixed reception from both long-time fans and critics. Released on Aug. 20, 2021, the album’s stripped-back, acoustic sound — reminiscent of pop songs from the early 2000s — ushers in a new chapter in her artistry.