Honda doesn’t just built zero-carbon cars, such as the Honda Fit EV, but has actually developed a whole-life approach to eliminating carbon dioxide emissions.
The Honda Fit EV, of course, consumes electricity, which would normally come from the power grid. Where that power comes from, and how much carbon dioxide it generates, is out of the hands of the owner. The obvious solution would be to include a solar power system for electric vehicle recharging, which you would put on the roof. The roof isn’t doing anything anyways, so this is a good use for that extra square-footage.
Carbon-free charging of an electric vehicle, however, isn’t all that the solar roof can do, but it can be part of a whole-home approach to carbon-free living. The Honda Smart Home demonstrator project, in California, isn’t quite ready for tenants, but is functioning as a lab, testing the energy efficiency of the system. Built from the ground up to take advantage of the sun during winter, but block it out during summer, as well as using a deep underground heat sink, the Honda Smart Home is a model of energy efficiency.
On the whole, the Honda Smart Home reduces carbon emissions by using a 9.5 kW solar power system to generate electricity, storing it in 10 kWh of lithium-ion battery pack for later use. The experimental Home Energy Management System (HEMS) manages home energy expenditures against energy storage and that it gets from the grid, even putting about 2.6 MWh/yr back into the. Honda estimates that the Honda Smart Home and Honda Fit EV can eliminate nearly 12 tons of carbon dioxide emissions per year.
Image © Honda