With Solahart, the Finnegans family of four have reduced their electricity bill by 75 per cent. After 10 years of having their Solahart Solar Hot Water system, Tracey and Mark also decided to install a Solar Power (PV) system on their roof, seeing significant cost savings after just eight months. Previously spending $1,200 per quarter on electricity, the Finnegans family now only spend between $300-$400 depending on the time of year. Sustainability is important to Tracey and Mark, which is why they're thrilled with a responsible solution which also reduces their electricity bill.