Solar Savings & ROI Calculator

Find out how much different size solar systems can save on your utility bill. Make sure you have your bill information at hand.

Bill Info

OR

Daily average

Average Bill Value info

This is not a valid integer! Please enter your last bill! Average bill value must be higher than $ {[{ formData.surcharge }]}.

Bill Period info

Postcode info

This is not a valid postcode! Please enter your postcode! No postcode found, please try again

Electricity Supply Charge info

This is not a valid integer! Please enter your Electricity Supply Charge!

Daily average kWh info

This is not a valid integer! Please enter your dailyUsage!

Postcode info

This is not a valid integer! Please enter your postcode!

Electricity Supply Charge info

This is not a valid integer! Please enter your surcharge!

Average electricity purchase rate info

${[{ formData.purchaseRate }]} per kWh

Average electricity export rate (Feed-in tariff) info

${[{ formData.buybackRate }]} per kWh

Lifestyle

Your solar system will generate electricity all day. Your home consumption will sometimes be more than your system generates and sometime less. When it is less you will export electricity and potentially get a feed in tariff paid. Please estimate how much of your solar system generation will be consumed within your house vs solar electricity being exported.

{[{ formData.lifeStyleData }]}

Mostly at Home during day
Mainly use solar electricity Mostly out during day
Mostly export and sell solar electricity

Calculations:

Average solar 1kW output for postcode {[{ formData.postcode }]} : {[{ yearlyOutput }]} kWh
Estimated daily consumption : {[{dailyConsumption}]} kWh
Estimated yearly consumption : {[{yearlyConsumption}]} kWh
Estimated electricity price per kWh : ${[{formData.purchaseRate}]}
Estimated yearly bill : ${[{yearlyCost}]}
(without supply charge)

Details

Based on Electricity Output

OR

Based on Electricity $ Value

System Size (kW)	Electricity cost (Yearly)	Electricity Consumed (kWh)	Electricity Produced (kWh)	Solar Used (kWh)	Solar Used ($)	Solar Exported (kWh)	Solar Exported ($)	Potential Solar Saving	Left to Pay	% of old bill
{[{data.systemSize}]}	$ {[{data.yearlyCost}]}	{[{data.yearlyKWH}]} kWh	{[{data.yearlySolarProduced}]} kWh	{[{data.solarUsedKWH}]} kWh	$ {[{data.solarUsedPrice}]}	{[{data.solarExportedKWH}]} kWh	$ {[{data.solarExportedPrice}]}	$ {[{data.solarSaving}]}	$ {[{data.leftToPay}]}	{[{data.offset}]}%

Return on investment calculator

System size(kW)

Assumed average % increase of electricity price per kW/h in future years info

{[{ formData.inflationRate }]} % annually

System 1

Cost of system info

This is not a valid integer! Please enter cost of solar system!

Potential Solar Savings info

This is not a valid integer! Please enter your potential solar saving!

It will take approximately :

{[{ roiResult }]}

VS

System 2

Cost of system info

This is not a valid integer! Please enter cost of solar system!

Potential Solar Savings info

This is not a valid integer! Please enter your potential solar saving!

Performance Disadvantage (%) info

{[{ formData.energyEfficiency }]} %

It will take approximately :

{[{ roiResult2 }]}

Approx. ROI time difference

{[{differencePeriod}]}

Disclaimer: This calculator allows you to enter certain data such as your monthly electricity bill and the average cost of electricity in your area. The calculator then also asks you to make assumptions about solar used versus solar exported during the day. This calculator is not to be seen as a precise tool. It is only providing an indication and demonstration of how solar electricity used versus solar exported works. The solar used versus solar exported varies depending on your own personal electricity consumption patterns. Also the feed in tariff system changes in NZ from retailer to retailer. So only a general estimate is possible. LG encourages you to discuss your energy consumption pattern with your chosen solar installation company to create the best solution for you having regard to your individual circumstances.

Please note these calculators are a guide only. Please verify the information obtained through these calculators independently. In compiling these calculators LG NZ (LG) has utilised available data in the retail electricity sector. LG has used its best endeavour to ensure that the supplied calculations and information are correct, but LG takes no responsibility for any error or defect therein. LG Electronics shall not be liable for any loss or damage arising from the use or reliance of any data supplied by these calculators.

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