Goal Zero, the leader in portable energy, today announced its first entry in a new category: the Alta line of portable fridges. Alta fridges are part of the company’s Yeti-Ready Gear line of products, which are designed to work seamlessly with the expansive Yeti line of portable power stations. Featuring two different capacities, the Alta 50 and Alta 80 are portable, energy-efficient and built to take on the go. Alta fridges can maintain a temperature of anywhere between 50°F and -4°F at a minimal power draw, meaning even a smaller Yeti power station can keep food and drinks cold for days betw…