I've been very happy with the Blink unit at my home (since Sept). Good features, touchscreen. Basically it's also a separate meter. You can input your utility rate information and it tracks stats like kWh used per month, average kWh per charge, # charging events, total cost per month (calculated as single number after you load in the rate info once). Online access to other reporting info, graphs, etc. You can set parameters on when to charge or not based on rate (although the Volt can already do that itself anyway).
Some people had issues with the install taking a while, but mine was fine. Push them down on the install quote, and if you have a straightforward install, the $1200 allowance should cover it.
Eric Z
C2063
"EZ Volt" on Voltstats.net
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