The improving business cases for off grid are a contrast to much grid supply, where high voltage grid extension at a swingeing $1-6 million per mile is not involved, nor even low voltage extension at $15k-50k. It attracts where grids are being neglected or are based on bad choices increasing prices.

While plenty of options for plug-in vehicles now flood the market at seemingly low prices, drivers soon realize most electric options only get them thirty to eighty miles on a single charge.