Another thought I had would to apply these meters to water meters. This would also aid in helping people to keep a closer watch on the amount of water they use.
You could incorparate alarms within the reciever that would alert you to possible water leaks around the home or alert you to water consumption has exceeded your average daily usage. You could also set a weekly alarm in the reciever to undergo water checks from their sources around the home. This way you wont risk the possibility of water leaks and they will always be monitored.
The one reciever could be an all round dual purpose built device to maintain the consumption of power and water and to have it in a ready position for the consumer within their household.