Well, that's a step in the right direction!
$240 for 6 months is indeed a lot of electricity - that would be more that my annual electricity fee for my Volt!
The important step was to get the acceptation, a later negociation about more realisitic fees can be done
afterwards. This is a prime example of the cost of being an early adopter!
You are opening up the road for those who will follow your steps!