Costs often deter people from getting their homes off the grid. However, convincing people to buy into the concept of a stylish off-the-grid house might be a way of sneaking green tech in through the back door, Lisa Steyn reports in the final instalment of a three-part series.

Yoram Gur-Arie has been trying to get South Africans off the grid for 25 years and has come to one definitive conclusion: people are not rational.

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