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Your Savings Calculator

Pincode
Rs.
Sq.ft.

Solar System Size

KW

Rooftop Area Used

89%

Plant Costs (Rs.)

0 Lakh
Monthly Savings
Rs 104717
Savings %
98%
Investment Payback Period
5.5 Years
Investment Payback Period
5.5 Years
/* Bar chart Start */ var ctx = document.getElementById("myChart").getContext('2d'); var myChart = new Chart(ctx, { type: 'bar', data: { // labels: ["Before", "After"], // datasets: [{ // label: '# Monthly Bills', // data: [20, 10, 3, 5, 2, 3], // backgroundColor: [ // 'rgba(255, 99, 132, 0.2)', // 'rgba(54, 162, 235, 0.2)' // ], // borderColor: [ // 'rgba(255,99,132,1)', // 'rgba(54, 162, 235, 1)', // ], // borderWidth: 1 // }] }, options: { scales: { yAxes: [{ ticks: { beginAtZero: true } }] } } }); /* chart end */ /* Line Chart Start */ var ctx = document.getElementById("mylineChart").getContext('2d'); var mylineChart = new Chart(ctx, { type: 'line', data: { labels: [ "2018", "2019", "2020", "2021", "2022", "2023", "2024", "2025", "2026", "2027", "2028", "2029", "2030", "2031", "2032", "2033", "2034", "2035", "2036", "2037" ], }, options: { scales: { yAxes: [{ ticks: { beginAtZero: true } }] } } }); /* Line Chart End */ function calculateBills() { var state = []; var tarrif = []; selPinCode = $("#pincode").val(); var connectionType = $('.connectionType:checked').val(); debugger; state = jQuery.grep(pinCodes, function(pin, i) { return pin.Pincode == selPinCode; }); if (state != undefined && state != null) { alert(state[0].State); } tarrif = jQuery.grep(tarrifs, function(tarrif, i) { return tarrif.stateName == state[0].State; }); if (connectionType != undefined && connectionType != null) { for (var i = 0; i < tarrif.length; i++) { if (tarrif[i].connectionType == connectionType) { CalulateLoad(tarrif[i].tarrif, selPinCode, connectionType, state[0].State) } } } } function CalulateLoad(tarrif, selPinCode, connectionType, State) { var monthlyBill = Number($("#monthlyBill").val()); var roofTopArea = Number($("#roofTopArea").val()); var calc1 = parseFloat((roofTopArea * .95) / 100).toFixed(1); var calc2 = parseFloat((.95 * monthlyBill / (tarrif * 4 * 30)).toFixed(1)); var min = calc1 < calc2 ? calc1 : calc2; // min*tarrif*4*30 var saving = parseInt(min * tarrif * 4 * 30); // monthlyBill - saving var newMonthlyBill = monthlyBill - saving; // saving / monthyBill var perSaving = parseInt((saving * 100) / monthlyBill); // min*100/rooftoparea var areaUsed = parseInt(((min * 100) / roofTopArea) * 100); var costInLakh = parseFloat(42000 * min / 100000).toFixed(1); var simplePayBack = parseFloat(costInLakh / (saving / 100000 * 12)).toFixed(1); var co2Avoid = parseFloat((0.6 * min * 4 * 30 * 12) / 1000).toFixed(1); var nper = parseFloat(Interest(0.099 / 12, saving * 0.9, -(costInLakh) * 100000 * 0.95) / 12).toFixed(1); $("#min_calculation").html(min); $("#spn_area").html(roofTopArea); $("#spn_areaused").html(areaUsed); $("#spn_cost").html(costInLakh); $("#spn_savings").html(saving); $("#spn_savingPer").html(perSaving); $("#spn_npr").html(nper); $("#spn_co2").html(co2Avoid); $("#spn_payback").html(simplePayBack); graphData(monthlyBill, newMonthlyBill, saving, nper); } function graphData(monthlyBill, newMonthlyBill, saving, nper) { var withoutSolar = new Array(); var withSolar = new Array(); var annualbill = monthlyBill * 12; var newAnnualBill = newMonthlyBill * 12; for (var i = 0; i < 20; i++) { if (i == 0) { withoutSolar.push(annualbill); } else { annualbill += parseInt(annualbill * 0.005); withoutSolar.push(annualbill); } } for (var i = 0; i < 20; i++) { if (i == 0) { withSolar.push(newAnnualBill); } else { newAnnualBill += parseInt(newAnnualBill * 0.005); withSolar.push(newAnnualBill); } } myChart.data.datasets.push({ label: 'Bill Without Solar (Year)', backgroundColor: 'rgba(255, 99, 132, 0.2)', data: withoutSolar }); myChart.update(); myChart.data.datasets.push({ label: 'Bill With Solar (Year)', backgroundColor: 'rgba(54, 162, 235, 0.2)', data: withSolar }); myChart.update(); mylineChart.data.datasets.push({ label: 'Bills Without Solar', backgroundColor: 'rgba(54, 162, 235, 0.2)', data: withoutSolar }); mylineChart.update(); annuaLoan(saving, nper, withSolar); } function annuaLoan(saving, nper, withSolar) { var loanArray = new Array(); var annualSSaving = saving * 12; var initialValue; for (var i = 0; i < 20; i++) { if (i == 0) { initialValue = (annualSSaving * 0.9) + withSolar[0] } if (i Math.floor(nper)) { loanArray.push(withSolar[i]); } } mylineChart.data.datasets.push({ label: 'Annual Loan Payment', backgroundColor: 'rgba(255, 99, 132, 0.2)', data: loanArray }); mylineChart.update(); } function Interest(rate, payment, present, future, type) { // Initialize type var type = (typeof type === 'undefined') ? 0 : type; // Initialize future value var future = (typeof future === 'undefined') ? 0 : future; // Evaluate rate and periods (TODO: replace with secure expression evaluator) rate = eval(rate); // Return number of periods var num = payment * (1 + rate * type) - future * rate; var den = (present * rate + payment * (1 + rate * type)); return Math.log(num / den) / Math.log(1 + rate); }