Our Solar Calculators

Solar System Output Calculator

Postcode 600

Calculate the average daily kWh hour output in your area, based on a well installed solar system in a suitable position (e.g No overshadowing).

Your Profile

This is not a valid postcode! Please enter postcode

System Output

Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun
Electricity Output(kWh) {[{electOutput.toFixed(0)}]}

Estimated Annual Generated Output (kWh)

{[{ tableAnnualOutputData }]} kWh

Estimated Daily Generated Output (kWh)

{[{ tableDailyOutputData }]} kWh

Dealer list in Blockhouse Bay

Harrisons Energy Solutions

Harrisons Energy Solutions

Harrisons Contact Centre

418 Lake Road, Takapuna,
New Zealand Auckland 0622

0800 00 33 55



Find out more

Harrisons Energy Solutions are one of NZ’s leading solar company’s and part of the Harrisons group that’s been bringing fantastic deals to Kiwis for over 50 years. Our exclusive LOWEST PRICE GUARANTEE means you can rest easy that with Harrisons, you’re always getting the best price possible, with the added bonus of the industry’s most generous interest free finance options. Better still, we’ll add even more value by rewarding you with Fly Buys or Air NZ Airpoints!

But more than just a great deal, our friendly nationwide team are energy experts and we’ll design the perfect, most cost effective system for your home that ensures the best R.O.I possible. Solar is a smart investment and our premium solar install teams take the upmost care, with quality workmanship being a priority. So, say no to rising power prices and start saving money now. The first step is a free, no-obligation visit from one of our home energy experts. We'll come to your place at a time that suits and provide you with all the information you’ll need in an easy to understand fashion. We can also help with home insulation, ventilation systems and heat pumps.


  • Please have a look at your average annual consumption number in kWh which you wrote down from the previous page. Increase the system size in the calculator above to see how big your system would need to be to create an annual amount of kWh solar energy similar to or bigger to the amount of kWh you consume. Write down how big your solar system would need to be in kW.

Are you a LG installer?


Disclaimer: These output calculations use sunlight data supplied by the New Zealand Bureau of Meteorology from most New Zealand weather stations from 1990 to now – as an average. The output calculations are estimates only. The calculations allow for a 14% loss of the sunlight for inverter and cable loss, slight dust on the panels and for the fact that panels will not always be pointing True North. If panels point straight West or East, are tilted to low or to high, a further reduction in output of up to 15% can occur. For site specific rather than general solar system outputs please request a site inspection and discuss the matter with your LG solar dealer.

Please note these calculators are a guide only and please verify the information obtained through these calculators independently. In compiling these calculators LG Electronics New Zealand (LG) has utilised available data from the Clean Energy Council and the New Zealand Bureau of Meteorology. LG has used its best endeavours to ensure that the supplied calculations and information are correct, but LG takes no responsibility for any error or defect therein. LG shall not be liable for any loss or damage arising from the use or reliance of any data supplied by these calculators.

Solar Questions?

Over 300 solar questions
answered in our FAQ section.

Check out our Solar Library

New LG Solar Guide

Written by experts with over
20 years of solar experience.

Receive your FREE copy today.

Download the LG Solar Guide