When I first wrote this Diary, Margaret Thatcher was prime minister, and Peter Walker her maverick energy secretary. Way ahead of his time, he was a great champion of renewable electricity.
It was an enthusiasm not shared at the Treasury, then run by arch climate change denier Nigel (now Lord) Lawson. He went out of its way to block any renewables progressing. Even so, Peter Walker would litter his speeches with ecstatic hymns of praise to various embryonic renewable electricity initiatives.