[david-given]

Years ago (on Mull), I saw someone selling drying tents: basically, a large tent with open ends and clotheslines inside. The shape apparently draws air through the tent. They said that even on cold, wet days, clothes dried quickly because of the air movement, and of course, no energy consumption.

Never, ever seen one since, and a quick web search for 'drying tent' shows up nothing but kit for pot growers.

[robert_tweed]

This would also solve the other problem that stopped me drying things outside in Scotland: the garden tended to attract a lot of birds. I won't go into details, suffice to say the results were less spectacular than I had been led to believe.

[Cerium]

I've seen indoor ones with fans. Looked like a fabric armoire with a box fan underneath. It blows air through the clothes to dry them faster.