Can I run this alone without the need for gas or electricity as backup?

Can I run this alone without the need for gas or electricity as backup?
Cheers Anthony.

Hi Anthony,
Yes, you can run it as a standalone, however depending where you are and how much sun there is will determine if you have enough hot water.

Normally the system produces enough hot water for 80-90% of the time. In Vic, NSW.

Over winter when it is rainy and cloudy you may want some boosting from another source.

At the moment our tanks are holding between 30-65 deg (July 2017).
This year has been the coldest (in Infra Red transmission/absorbance) in about five years and we have had feedback that there are occasions that the solar water is not hot up to expectations for hot showers hence requiring boosting. We too have experienced this along with areas of inland NSW.