Calculators
Calculators that show their work
Every tool from the original Megawatt site, rebuilt so you can see the math move as you change the inputs. Plus a few new ones we kept getting asked for.
The big one
Solar planner
Pick your rig, measure the roof, check off what you run. The planner lays out panels around your A/C units and vents, sizes the battery, inverter, controller, and wire, and gives you three builds with parts lists.
Power
Batteries, panels, and how long the lights stay on.
Battery bankSize a lithium bank from your loads, days off-grid, and solar. Picks from the Vatrer lineup Megawatt already links.From the original siteSolar arrayTurn daily watt-hours and sun hours into a minimum array, then into real pack counts.From the original siteBattery runtimeHow many hours a bank lasts at a steady load, drawn hour by hour.NewSolar output by place and seasonYour ZIP, last year's sunlight month by month, and the next seven days of forecast.New
Wiring
Cable that doesn't run hot or starve the load.
On the road
Weight, wind, fuel, and the license in your wallet.
Weight and payloadWhat your sticker leaves for gear, people, water, and propane.NewMax windThe broadside gust that could tip a parked or moving rig.From the original siteFuel savingsBaseline weights, water weight by tank level, and what slowing down could save.From the original siteState license lookupWhich license each state asks for, by rig type, with the DMV link to confirm.From the original site
Money
Whether solar beats the generator and the campground meter.
Getting it installed
Directories run by the gear makers and a certification board, plus a request form.