NV Energy time-of-use plans charge more for power during peak evening hours. A battery lets you store cheap/self-produced daytime energy and use it during those expensive windows — automatically.
We configure your system to prioritize savings against your specific rate plan.
Solar production tapers off in the late afternoon as the sun drops toward the Spring Mountains, right when families get home and air conditioners work hardest against lingering desert heat. On a time-of-use plan, that is exactly when each kilowatt-hour costs the most. A battery charged by midday production carries the house through that stretch, so the grid only has to fill whatever gap is left.
Your bill shows which rate schedule you are on and, for time-of-use customers, how your usage splits between on-peak and off-peak periods. Looking at a full year, especially June through September, shows how much of your consumption lands in the expensive window. That split matters more than total usage when deciding how much storage is worth adding for savings rather than backup alone.
Most home batteries can run in a few modes: soak up surplus solar and use it whenever the house needs it, follow a schedule that discharges during your plan’s peak hours, or hold their charge for outages. For rate savings, the scheduled mode usually does the heavy lifting. Many owners keep a slice of capacity reserved so the backup power is still there if the grid drops at night.
Without storage, the extra power your panels make at noon flows out to the grid, and the credit for that exported energy can be worth less than the electricity you buy back after sunset. Storing the surplus and using it yourself during peak hours keeps more of your production’s value inside your own home instead of trading it away cheap and paying more later.
Rate schedules and peak windows can change over time, and household routines shift between mild spring months and a long Las Vegas summer. Because battery schedules are software settings, they can usually be adjusted without touching any hardware. We set your system up against your current plan, and checking the battery’s monitoring data from time to time shows how much of your peak-hour usage it is actually covering.
You do not need a brand-new array to start shifting power into the evening. If panels are already on your roof, storage can often be retrofitted alongside them; see how that works on our add a battery to existing solar page. Homes that also want the AC covered during outages can size up toward whole-home backup and get both benefits from one system.