anyone changed electricity supplier? (Scarsdale: lease, calculation, live in)

[sdcity]

Has anyone changed electricity suppliers and can explain whether it saves you money or not? It's pretty confusing.

Here is how I naively look at it:

I look at my con edison bill and see I am getting charged 8.7396¢/kWh for the supply of electricity this month. The delivery of electrify stays Con Edison if I switch correct?

I compare that to another enegry provider. I am interested in Green Mountain because they give you a free thermostat (https://nest.com/energy-partners/green-mountain/).

I look at Green mountains rate (Westchester - Pollution Free Efficient with Nest | Green Mountain Energy Company). It's 7.9¢ per kWh + 8.95 per month.

So I check my account history and I see how many killowatts I used in 2012. Multiplied that time 8.7396c/kwatt to get my total cost per year for Con Edison to supply electricity. I don't know if this rate changes much over the course of a year?

Then I did something similar for Greenmountain and added the 8.95/month times 12 months.

So I came to the conclusion that it will cost me $75 more for GreenMountain, but I get a free $250 thermostat. Then after a year I plan to switch back to Con Edison.

Of course I didn't take into account service outages. Will Green Mountain be as dependable as Con Edison?

Any experiences?

[noelm]

Last year, there was some company sending flyers and setting up a stall in front of Mrs. Greens in Scarsdale. They were cheaper but wanted a contract for 6 months to a year. Now this Green Mountains, they knocked on my door too. The lady was so confident that she was saving me money and when I did calculations in front of her, I was ending up paying more. She goes, call our office !!!

Nest thermostat is a good idea but I am not willing to pay a dime more, so I didn't follow, but I would like to know if you go that route.

If you live in the house, you may want to consider going partly solar. A neighbor of mine leased from some company, don't know the details but she seems to be happy.