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A detached garage offers more space to place solar panels with likely fewer roof penetrations and more options for roof pitch and orientation.
A roof-mounted solar electric system can be sized to produce enough electricity to power the home and an electric car.
A waterproof layer of thermoplastic olefin is laid down before installing the solar panels.
All vents are routed to gable walls and eaves rather than through the roof to minimize the risk of leaks and provide an uninterrupted plane for PV panels.
An array of 13.4 kW of solar panels form a waterproof roof for this porch that allows 15% of sunlight to filter through while the dual-surface panels produce power from the top and from any sunlight reflected up onto their lower surface.
An energy monitoring system helps the homeowners track energy usage and solar power production.
Durable Energy Builders installed a natural gas generator integrated with the solar electric system via a “smart panel” so that household utilities automatically switch to the generator during power outages in the disaster-resilient home.
ENERGY STAR reflective shingles cover the roof, which is ideally angled for solar panels.
Lithium-ion batteries charged by the solar photovoltaic panels provide 200 amperes of standby electricity to critical circuits in case of power failure.
Murphy Brothers installed a 4.5-kW photovoltaic system using solar electric shingles that integrate into the roof for a lower profile than raised panels on the DOE Zero Energy Ready Home.
Power production from the Integrated solar shingles helps cut electric bills to $71 a month for this home in North Carolina.
PV is installed on all available south-facing roof surfaces.
PV panels provide shade while producing power over this 5-story multifamily project in San Francisco.
Renewable resources on this self-sufficient home include 22 kW of sun-tracking photovoltaic panels, a 3.2-kW wind mill, batteries for power storage, a solar thermal water heating system, and nine 10,000-gallon water tanks.
Roof penetrations are minimized to provide more space for PV panels.
Rooftop portion of thermosiphon solar hot water system
Shed roofs provide more space for PV panels in this multifamily project near Denver,  Colorado.
Solar electric panels provide electricity for the home and an electric car charging station.
Solar tubes pop up above the roof’s surface to draw sunlight into the home’s interior.
The 6 kW of solar panels consists of a solar shingle product that is similar in size to asphalt shingles and is integrated into the roof to provide most of the home’s power needs.
The asymmetrical design of this home offers a large uninterrupted south-facing roof plane for solar photovoltaic and solar thermal panels.
The home integrates roof-mounted solar hot water panels with an air-to-water heat pump; both sources feed into an 80-gallon stainless steel tank.
The home owner can track electricity production from the home’s solar panels through a web-based interface that is accessible on any computer or mobile device.
The home’s energy management system tracks energy and water usage and production. A 40-kW battery storage system is the home’s first source of power, with the grid connection serving as a backup.
The home’s solar water heating system includes two 30-tube evacuated tube panels and a 120-gallon storage tank with electric back up.
The photovoltaic panels sit in a waterproof plastic tray that was installed directly on the roofing underlayment, then surrounded with roofing shingles.
The photovoltaic system comes with a readout screen showing power production.
The roofs of the apartment buildings, community buildings, and carports are topped with solar panels in this affordable, zero energy multi-family housing complex.
The simple gable roof is constructed at an unusual 6.55 pitch that allows exactly four and a half sheets of 4-foot- wide coated, taped roof sheathing to be installed as the roof deck with enough space at the peak for a continuous ridge vent.
The solar hot water system with 80-gallon storage tank should provide all the hot water a typical family needs.
The varied roof pitches offer multiple options for solar panel placement regardless of home orientation for these production homes in Colorado.
Thermosiphon solar hot water system.
These inverters convert the power from the home’s 6.8-kW of photovoltaic panels from DC to AC for connection to the grid; the inverters can also be connected to batteries for backup power storage.
This 13.8-kW array of solar panels is mounted on a steel pole with motorized dual-axis rotation to track the sun, maximizing electrical power generation.
This builder installed a PV panel awning over his multifamily project in San Francisco.
This home was made PV ready with the installation of conduit and a dedicated electrical outlet for wiring from the roof to the circuit breaker box on the first floor.
This home’s south-facing roof provides adequate space for both a solar electric system and solar thermal hot water system.
Wall space is provided next to the electrical panel in the garage for the home’s photovoltaics system.
With very few roof penetrations and a simple design, the south-facing roof provides ample space for solar panels for this net zero home.