6 calculators in this category
- Solar Panel Array Sizing CalculatorNREL PVWatts methodologyEnter what you use — a monthly bill figure works fine — along with the peak sun hours at your site, a system loss allowance and…
- Solar String Voltage CalculatorNEC 2023 (NFPA 70) Article 690.7A photovoltaic module's open-circuit voltage rises as it gets colder, and the coldest morning of the year is when a string is…
- Battery Bank Sizing CalculatorIEEE 1013 sizing practiceEnter what you use in a day, how many days you want to ride through without charging, and how deeply you are willing to…
- Battery Runtime CalculatorPeukert's law (IEC 61056 hour-rate basis)Give this calculator a battery's amp-hour rating, its voltage, and the load in watts, and it returns the runtime in hours along…
- Inverter Sizing CalculatorNEC 2023 Table 310.16 for DC conductor ampacityAn inverter fails in one of two ways: it overheats and shuts down on a load it could not sustain, or it trips instantly on a…
- Generator Sizing CalculatorNEC Art. 445/702, NEMA code lettersEnter your total running load, the horsepower of the largest motor that starts across the line, the supply voltage and phase…