This app is useful to calculate Solar PV and Electrical related calculations like:
>> SOLAR IRRADIANCE WITH MONTHLY DATA
--Daily Insolation Data
--Monthly Insolation Data with Chart view from any Location(Google Map)
>> TILT ANGLE WITH MONTHLY DATA
--Daily Tilt Angle Data of Current Location
--Monthly Tilt Angle Data of Current Location
--PV Panel Orientation
--Sunrise & Sunset Data with Solar Noon and Day Length
>> SOLAR ROOFTOP CALCULATIONS
--Rooftop Calculations for Available Roof Area
--Rooftop Calculations for Capacity want to Install
>> SOLAR PV CALCULATIONS
--PV Cell Efficiency
--PV Cell Output
--PV Module Efficiency
--PV Module Output
--Plant Performance Ratio
--Plant Power Generation
>> PV ARRAY SHADOW CALCULATIONS
--Obstruction Object
--PV Array Row Spacing
>> SPV OFF GRID LOAD CALCULATIONS
--Number of Batteries
--System Total Load
--Number of Backup Hours
--System Battery Voltage
--System Battery Amp-Hr
>> PV WATER PMPING CALCULATIONS
--DC Pump with and without MPPT
--AC Pump with and without MPPT
>> SOLAR VOLTAGE DROP CALCULATIONS
--Calculations for Copper Aluminum DC & AC Cables
>> VOLTAGE DROP CALCULATIONS
--Calculations for Copper Aluminum Silver Gold Iron Nichrome DC & AC Cables
>> CABLE CROSS-SECTION CALCULATIONS
--Calculations for Copper Aluminum Silver Gold Iron Nichrome DC & AC Cables
>> BUSBAR FLAT STRIP CALCULATIONS
--For DC & AC Currents
>> INVERTER CALCULATIONS
--Calculations for 1Ph & 3Ph Inverters
>> TRANSFORMER CALCULATIONS
--Calculations for 1Ph & 3Ph Transformers
>> TRANSFORMER FAULT LEVEL CALCULATIONS
--Calculations for 1Ph & 3Ph Transformer Fault Currents
>> EARTHING CONDUCTOR CROSS-SECTION CALCULATIONS
--Calculations for GI Copper & Aluminum Conductors

This App contains Compass and Precise Location details along with Latitude and Longitude Time & Date Temperature & Wind speed of current location (available in Pro version only).
And many more features and calculations..