Heating strategy to take advantage of off-peak electrical power rates
I am planning to have a house built later this year. I plan to use electricity as the main source for heat. I live in the Province of Ontario and they will introduce time-of-use pricing in 2012. What is the best strategy to take advantage of off-peak rates?
– I live in climate zone 7A
– house will be 24×32′ – 2 floors – unheated crawl space
– it will be inspired by Passive House but will not meet all the standards
– I am retired so I will have time to feed a small wood stove during the day but will need a heating system that can maintain a reasonable temperature when no one is at home or when not using the wood stove
– passive solar heating possible during afternoon hours but it is often cloudy here during the winter months
– I don’t need air conditioning in the summer
– in my rural/remote location, natural gas is not available; fuel oil is inconvenient to deliver (plus I want to avoid fossil fuels); ground source heat pump is not an option; local electrical utility company generates 100% of their power from water and wind.
– time-of-use pricing: off-peak rate of 5.1 cents/kWh (plus about another 6 cents/kWh for delivery and other overhead charges) will be from 9 pm to 7 am weekdays and 24 hours a day on weekends.
– how can I take advantage of the off-peak rates to store heat generated from electricity and release it to the house from 7 am until 9pm?
– options I have been considering are: 1) electric water heater/radiant floor system or electric cable floor system in a lightweight slab on the first floor; 2) electric thermal storage heating unit(s); keep it simple and just use baseboard heaters because a well-insulated house will not need expensive heating infrastructure; or is there another strategy?
– and then consider this situation: I am increasing my investment in the local electrical utility company (they are currently paying about a 6% dividend) and the dividend will pay my electrical power bill!
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