Free marine solar sizing calculator. Daily energy need + peak sun hours + realistic loss factors → recommended panel wattage. Tuned to what we actually see on Yoto in the tropics.
Free marine battery bank sizing calculator. Plug in daily Wh consumption, days of autonomy, and chemistry — get the right bank size in Ah. The same calculator we use on Yoto.
Free marine DC fuse size calculator using ABYC E-11 standards. Sizes fuses for continuous, intermittent, motor, and inverter loads — and warns if your wire can't safely handle the fuse.
Free marine DC wire size calculator using ABYC E-11 standards. Enter current, distance, voltage, and acceptable drop — get the right AWG every time. The same calculator we use on Yoto.