There’s a lot of noise around about whether it makes financial sense to install home batteries or not. Many installers are discouraging customers from installing batteries, even though consumer interest in self-storage has increased dramatically over the last year.

The Pfitzner family from the Sydney suburb of Kellyville Ridge was the first home in the world to have a Tesla Powerwall (6.4 kWh) battery installed four years ago, and there was much conjecture from industry about whether it would be worth it or not.

Four years later, and the family has revealed that they pay 46 cents per day (on average) to run their four-bedroom home, which includes all the usual appliances plus air conditioning and a pool. Their quarterly bills reduced from $572.29 to just $45.16 (a reduction of 92 per cent) equating to a saving of over $8,400 over the last 4 years. Their overall electricity costs over the last 4 years has amazingly been just $677.34, which is even more impressive when you consider that power prices are increasing by 10 to 15 per cent per annum on average.

The family also stated that with the software apps that come with the battery system, they can track their energy consumption resulting in them being able to modify their usage patterns to save even more money.