Building storage units

[Ryan Wessel]

Hello Everyone,

I am building a storage unit facility and 38 of the units are going to be large 14' by 45' units with power over head doors with 2 light fixtures. 

When I rent the larger units they come with power included in the rent, the idea is so they can trickle charge their boats/rv/other toys and run a shop vac or other smaller items.   The last ones i did, i put the lights on an occupancy sensor and a timer on the outlets.  The problem I am having is that if someone wants to trickle charge i have to remove the timer.  I don't really want people running fridges/freezers or electric heaters (these are metal non insulated units).  I thought i could put a 10 amp service to each unit but you could still run a 750 watt heater. 

Does anybody here have any recommendations of electric monitoring meters that hook up the internet and are easily monitored or shut off after a certain kw limit is used.  

I don't really want to have the electric company put in individual meters on the unit because the meters are a base price of $30 per month and that would drive up my rental price vs the competition.

Any ideas or suggestions would be great!  

Thank you