Since every household owners have mobile phones my concept is. Their phones should be configured to their Smart Meter number so whenever their power units gets as low to a threshold mark automatically a SMS alert message will be sent to all household owners phone numbers alerting them that their electricity units is getting low.
With that phone alert service a service fee will be deducted from all home owners phones. So that's how AGL Energy can generate additional revenue from the Smart Meter.
Apparently there are more than three people living in a home so with that you can configure all threes phone numbers and receive SMS alerts from them whenever their power units gets low.