Success stories

A family of four decided to install PV panels - they wanted to be largely self-sufficient in energy, and be able to integrate their PV system into the local electricity network.

They first invested in energy efficient appliances and a solar water heater. These cost more than standard appliances and water heating systems, but reduced their daily electricity demand to just 4kWh a DAY. By comparison, many houses require 35kWh or more per day. Reducing their demand enabled them to have a PV system to meet all of their electricity needs.

At the time, the cost of the system was comparable to the purchase of a 4x4 car. However, the PV system will not depreciate and the owners know exactly how much they pay per year for electricity, which makes budgeting for the future easier.

Benefits and savings

Because the family’s home is connected to the local network, they didn’t need to purchase any batteries – the network is the battery bank. For about 9 months of the year the PV panels generate more than their daily electricity needs. In their case, the excess electricity generated is bought by their electricity retailer at about 1/3 the retail price (about 5c/kWh). The PV system generates on average 7.25kWh a day, which is 3.25kWh more than their energy efficient home requires.

For the other months, they consume more than they generate and purchase electricity from their retailer at standard retail prices.

Have a look at our Frequently asked questions for answers to common questions.