function calculateSolarSize() {
// Capture user input
const electricBill = parseFloat(document.getElementById(“electricBill”).value);
if (isNaN(electricBill) || electricBill <= 0) {
alert("Please enter a valid electric bill.");
return;
}
// Dynamic variables
const localRate = 0.18; // Using an average of $0.17-$0.19 for better precision
const solarIrradiance = 5.5; // Adjusted for regional variability (avg daily sunlight)
const panelEfficiency = 0.28; // Adjusted for real-world panel output efficiency (kW per panel per sunlight hour)
// Monthly energy consumption from electric bill (in kWh)
const monthlyConsumption = electricBill / localRate;
// Monthly panel production (in kWh)
const monthlyProductionPerPanel = solarIrradiance * panelEfficiency * 30;
// System size required to offset consumption (in kW)
const requiredSystemSizeKW = monthlyConsumption / monthlyProductionPerPanel;
// Results display
document.getElementById("estimatedSize").innerText =
`Estimated System Size: ${requiredSystemSizeKW.toFixed(2)} kW`;
// Ensure the results are visible
document.getElementById("result").style.display = "block";
// Debug logs for transparency
console.log("Electric Bill: $", electricBill);
console.log("Local Rate: $", localRate);
console.log("Monthly Consumption (kWh):", monthlyConsumption);
console.log("Monthly Production per Panel (kWh):", monthlyProductionPerPanel);
console.log("Required System Size (kW):", requiredSystemSizeKW);
}
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