General Energy Use, Strategies and Systems

Energy Strategies:

Passive solar design, evacuated tube solar hot water combined with on-demand electric hot water (as considered elsewhere, evacuated tube hot water system was a very poor choice and system was removed and replaced with a second PV system in Sept 2010), energy/water efficient appliances and technologies, and resident behavior of using what is needed and not wasting resources. By making our living space modest in size it is easy to conserve electricity because the radio in the kitchen is clearly heard in the living-dinning room, because reflective LED lighting of the kitchen and living-dinning room is accomplished with 80 watts, and because we only have two lamps in the living-dinning room area.

Zero Net Energy Definition Used Site Energy Use


Renewables and Energy Balance

Renewable Energy Sources:
Renewable energy is generated within the building footprint (e.g. solar PV on the roof)
Renewable Energy System Description & Details
3.12 kW system: 24 Kyocera 130 watt panels, 2 strings of 12 panels, Fronius TG3000 inverter. 2.04 kW system: 12 Sharp 170 watt panels, 4 strings of 3 panels, Outback Flex Max 80, GVFX 3648 inverter.
Annual renewable energy generated 5,200 kWh
Annual Renewable Energy Generated Data Type Measured
Power Rating Renewable Energy System Type(s) Source of Annual Production Data
5,160Watts Photovoltaics Metered

Storage and Installed Capacity

The 2.10 kW PV system has 4, 1 kWh batteries

Energy Storage type

The 2.10 kW PV system has 4, 1 kWh batteries

Energy Storage Capacity 4 kW

Annual Energy Import/Export

Electricity amount (credited or exported to grid) 1,600 kWh/year