Solar and battery calculators

PV string, PV DC cable, array power, inverter sizing, export planning, inverter AC cable and battery cable calculation workflows.

9 calculators
Australian workflow
230/400 V a.c. context

CalculatorPV string voltage calculatorCheck string voltage using module data and temperature values.Inputs: Module voltage data, temperature coefficient, module count and temperature range.Output: String-voltage estimate requiring product listings and current rules.
CalculatorInverter AC cable voltage drop calculatorEstimate AC voltage drop between inverter and connection point.Inputs: Inverter current, phase arrangement, route length and conductor data.Output: Voltage-drop estimate with DNSP and inverter-manufacturer review.
CalculatorBattery cable voltage drop calculatorEstimate DC voltage drop for battery cable runs.Inputs: DC current, route length, conductor material and voltage.Output: High-current DC estimate requiring equipment and safety review.
CalculatorPV DC cable voltage drop calculatorEstimate PV DC cable voltage drop from entered string current and conductor data.Inputs: String current, parallel strings, DC voltage, route length, conductor resistance and temperature factor.Output: PV DC voltage-drop worksheet requiring cable, protection and product review.
CalculatorPV string current calculatorConvert module current data and parallel strings into PV string and array current records.Inputs: Module Imp, module Isc, parallel strings, current factor and entered current limit.Output: Current record for downstream PV DC cable and protection review.
CalculatorSolar inverter sizing record calculatorCompare PV array DC capacity with inverter AC capacity and entered ratio targets.Inputs: Array kW, inverter kW, ratio range and optional export-limit value.Output: DC/AC ratio worksheet that does not select or approve equipment.
CalculatorSolar export limit worksheet calculatorCompare entered inverter export, site load offset and DNSP export limit values.Inputs: Inverter export, site load offset, DNSP export limit, phase and voltage.Output: Net-export and current worksheet that does not approve network connection.
CalculatorDNSP export planning calculatorCompare entered inverter export and minimum site load with an entered DNSP export limit.Inputs: DNSP export limit, inverter export, minimum site load, phase and voltage.Output: Export headroom and utilisation worksheet that does not approve network connection.
CalculatorPV array power calculatorEstimate array kW from entered module rating, string layout and derate factor.Inputs: Module rating, modules per string, parallel strings, derate factor and inverter AC capacity.Output: Array power and DC/AC ratio handoff, not module layout or product approval.

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Calculation tools, structured tables, charts and guides for Australian electrical work using local terms, metric conductor sizes and 230/400 V, 50 Hz context.

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