Doesn this mean that all suppliers should offer similar size solar generators and batteries for a given application?
Using conservative design standards and government “insolation” (i.e. sun hours) tables, and bulbs with the same wattage, there is only one formula for determining the minimum ratings of solar generators and battery capacities. When a supplier offers a product with lower specifications from the standard approach he should be made to explain his numbers. It is usually a sign that he is using inferior specs to quote a lower price.
