Pretapower tools
Energy Storage &
Solar Calculators
Choose the calculation you need. Results are for preliminary planning only; final system design requires verified project data and engineering review.
Plan a Solar Project
Start with system scale, installation space, string layout, cable selection, or a preliminary cost estimate.
Battery vs Generator Backup Cost Calculator →
Battery Energy Density Calculator →
Series & Parallel Battery Pack Calculator →
Measured Battery Capacity & SOH Calculator →
Battery Lifetime Throughput & Cycle Planner →
Battery SOC, SOH & Remaining Energy Calculator →
Battery Runtime to Discharge Warning Calculator →
PV Surplus to Battery Charging Calculator →
BESS Backup Time & Capacity →
Battery C-Rate & Charge/Discharge Power →
BESS PCS Power & Current Sizing →Solar Battery Quantity →
Roof Space for Solar Panels →
Solar Panel String →
Solar Wire Size →
Solar Panel Cost →
Size a Battery
Convert battery capacity and related values before comparing battery options or discussing a system design.
Convert Energy
Use these tools for energy-use, stored-energy, and energy-unit conversions.
Convert Power
Convert power, voltage, current, apparent power, or thermal power for a quick technical comparison.
From calculation to system selection
Choose the Right Energy Storage Solution
Calculator results help define power, energy, backup time, and system scale. Use those values to compare the solution type that best matches your project.
C&I Energy Storage Cabinet
For smaller commercial and industrial projects, explore our C&I energy storage cabinets.
Containerized BESS Solutions
20ft and 40ft battery energy storage containers for large C&I, solar farms, microgrids, and utility-scale projects.
C&I Hybrid Solar System
Includes solar panels, high-voltage batteries, hybrid inverters, mounting systems, and accessories in one complete system.