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Ziebold-Carpenter Residence
3232 Bryant Avenue South
Minneapolis, MN

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Auditing our household's annual energy costs,
we realized that it was evenly divided between electricity and gas.
Therefore, we decided to divide the south roof's capacity into one-half
electricity production and one-half heat production. The latter
are closed-loop water collectors, used for hot water and air exchange
in the forced air heating system. The solar heat will decrease our
heating costs by one-third — mostly in the transitional seasons
— but we anticipate accelerated payback because of future
fuel shortages, price increases, and environmental benefits. The
maximum energy conservation will occur due to improved insulation
of the attic.
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1.58 kW photovoltaic array
with monocrystalline panels (note triangular shape) |
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8 solar water collectors (closed-loop) |