Yup. Hence my former coworker's business, Promethean (coolectrica.com), which makes milk chillers designed for markets where there is grid power, but it's inter

Yup. Hence my former coworker's business, Promethean (coolectrica.com), which makes milk chillers designed for markets where there is grid power, but it's intermittent and you can't depend on it being up when you need it.