An off-grid solar system is a solar panel system that has no connection to the utility grid at all. To keep a house running off-grid, you need solar panels, a significant amount of battery storage, and usually another backup power source, like a gas-powered generator. This guide will cover the details of a solar system without battery. Each type of system has a unique setup that affects what equipment is used, the complexity of installation, and, most crucially, your potential costs and savings. What would be the best in your. . Photovoltaic (PV) modules convert sunlight into direct current (DC) via the photovoltaic effect. When photons hit the semiconductor junction, electrons move and create DC power—this is the raw output of your array. See the high-level background in the IEA's Solar Energy Perspectives. Hi there, we're Jonathan & Ashley from Tiny Shiny Home.