I'd like some help deciding on the right electric plan. I live in Orange County, Southern California with Southern California Edison as my electricity provider. Currently I'm on the residential plan. Each tier jumps every 300 kwh of electricity consumed. My monthly consumption without the Tesla ranges from average low of 300 kwh during fall & spring to high of 600 kwh during peak of summer. On average, I plan to use on average 100 kwh monthly in addition to the above to charge my Tesla. My round trip work commute is 4 miles daily. I do shift work with start times of 6am, 7am, 8am, 11:30am, 2pm, 4pm, 8:30pm, & 10pm. I plan to charge my Tesla to 90% SOC on my non work days, wait 30-60 mins to let the batteries rebalance, then drive 30-60 miles to bring down the SOC. That way, my batteries will rebalance at least once per week, After that I'll keep the SOC at 50% during my work week until my next non working day. I'll drive very few miles most of the week but will charge at random times during the day, & I'll drive more miles 1-2 times per week, when I can try to charge between 12am-6am, unless I'm getting off an overnight shift, in which case I'd be charging during peak hours before using the car in the afternoon / evening. Which one of the following electric plans will save me the most money? (cut & pasted from: SCE website) Residential Plan You can charge an electric vehicle on your current Residential Plan (Schedule D) or any applicable residential rate plan. The standard residential rate plan has five tiers. As more electricity is used within any billing period, the cost per kilowatt hour increases. It can be the best option for households whose electricity usage is high between 10 a.m. and 9 p.m. See the full Residential Plan details and find out more about other residential rate plans for which you may qualify, and view the chart below for more information on rate. Residential Rate Plan (Schedule D)* Tier 1 RateTier 2 RateTier 3 RateTier 4 Rate13 ¢ /kWh16 ¢ / kWh27 ¢ / kWh31 ¢ / kWh Notes About this Rate Plan Effective April 1, 2013. *Tier cost are for demonstration only, not to be used for calculations Home & Electric Vehicle Plan The Home & Electric Vehicle Plan uses a single meter to measure energy used by your entire home, including your electric vehicle. It offers “super low” rates from midnight to 6 a.m., low off-peak rates from 6 a.m. to 10 a.m., and higher on-peak rates on weekdays between 10 a.m. and 6 p.m. This rate plan is often selected by people who are able to shift both their household electricity consumption and their electric vehicle charging to off-peak, evening, and overnight hours. This rate plan has 2 tiers. As with any tiered rate plan, the cost per kilowatt hour rises as more electricity is used within a billing period. With this rate plan, rates change seasonally too, rising in summer and dropping in winter. See the full Home & Electric Vehicle Plan details and view the chart below for more information on times and rates. Home & Electric Vehicle Plan (TOU-D-TEV) Summer Winter Tier 1 RateTier 2 RateTier 1 RateTier 2 RateOn-Peak 10 AM - 6 PM weekdays28 ¢ / kWh47 ¢ / kWh16 ¢ / kWh35 ¢ / kWhOff-Peak All other times12 ¢ / kWh31 ¢ / kWh11 ¢ / kWh30 ¢ / kWhSuper Off-Peak Midnight to 6 AM every day9 ¢ / kWh9 ¢ / kWh10 ¢ / kWh10 ¢ / kWh Notes About This Rate Plan: Home and electric vehicle energy are measured using a single meter. Tier 2 rates apply when your home and electric vehicle usage exceeds 130% of your region’s baseline allocation. Effective April 1, 2013. Electric Vehicle Plan On the Electric Vehicle rate plan, electricity used to charge your electric vehicle is billed through a separate meter at a different rate than electricity used by the rest of your home. Lower rates apply during off-peak hours of 9 p.m. to noon. Rates change seasonally, and are higher in summer. We will install the second meter as long as your home’s electrical infrastructure can support it. If you are considering moving to this rate plan, you’ll want to speak to a qualified electrician to understand the costs involved. This rate plan is often selected for those who cannot shift the rest of their household load to off-peak hours but can charge their electric vehicle after 9 p.m. See the full Electric Vehicle Plan details and view the chart below for more information on times and rates. Electric Vehicle Plan (TOU-EV-1) SummerWinterOn-Peak Noon – 9 PM every day33 ¢ / kWh23 ¢ / kWhOff-Peak 9 PM – Noon every day11 ¢ / kWh11 ¢ / kWh Notes About this Rate Plan Rates are for separately metered electric vehicle usage. Energy used for the home will be billed according to your existing home plan. Rates are effective April 1, 2013.