My sister and brother in law are having a small, brand new house being built down the street from me. Small as in the entire footprint would fit within the area of my kitchen, dining room and bathroom (1865 farm house). Anyways, it is being built to to code (Maine Uniform Building and Energy Code), which requires r50+ in the ceilings, r23+ in the walls, the r value for the basement depends on where the insulation is put.
They've got minisplits for heat/ cooling with electric baseboards for emergency heat, and a 5.5kW grid tied PV array. This is all well and good for 95% of the time.... Buuuuut... that 5% of the time is the dead of winter when the power goes out. My Bil told me that his PV shuts down w/ mains power.
He kinda stared at me blankly when I asked him how's he going to keep my niece warm when power is lost.
That's the part I don't get.... We lose power from time to time in the winter, that's a fact of life. Their house is critically tied to the grid in the name of energy efficiency, mine is not. If they lose power they're screwed, with no backup heat in the house.
If I lose power, life goes on... I've still got heat, cold water, and can cook on either the wood stove or on my gas range. If they lose power.... I've got 3 house guests.
Why are houses being built like this?
They've got minisplits for heat/ cooling with electric baseboards for emergency heat, and a 5.5kW grid tied PV array. This is all well and good for 95% of the time.... Buuuuut... that 5% of the time is the dead of winter when the power goes out. My Bil told me that his PV shuts down w/ mains power.
He kinda stared at me blankly when I asked him how's he going to keep my niece warm when power is lost.
That's the part I don't get.... We lose power from time to time in the winter, that's a fact of life. Their house is critically tied to the grid in the name of energy efficiency, mine is not. If they lose power they're screwed, with no backup heat in the house.
If I lose power, life goes on... I've still got heat, cold water, and can cook on either the wood stove or on my gas range. If they lose power.... I've got 3 house guests.
Why are houses being built like this?