Davenport began working with Energy for Sustainable Development, an environmental consultancy. While there, she ran technology models and analysed policies on renewable energy from countries around Europe. In 1999, Davenport set up Unit[e], a subsidiary of the Monkton Group, of which she later became CEO. In 2003, Unit[e] was renamed
Good Energy. The company was named a
Sunday Times Best Green Company in 2008 and 2009, and received
The Observer’s Ethical Award for best online retail initiative in 2009. In 2012, Davenport was named as
PLUS CEO of the year. In March 2021, the podcast Great Green Questions launched with Davenport as host. On the series she speaks to a variable panel of celebrities, experts and comedians about the issues of sustainable living. From 1 May 2021 Davenport stepped down as CEO of Good Energy, and she left the company's board in 2022. She holds a number of non-executive directorships Davenport has been a trustee of the
Energy Institute professional membership body since 2019, and in July 2022 was appointed as its president for a three-year term. Davenport was appointed as a
Crown Estate Commissioner in 2020, renewed in 2024 for another four years. == Honours and awards ==