I. Outdoor Solar System - Business or Residential
New buildings with concrete roof but a lot of air conditioners
For older buildings or houses that have leaking roof or special tiles, slopes are not facing true South and could not get maximum power generation. Try outdoor independent galvanized metal structures. For sun shading, rain sheltering and solar roof. These nice structures are multifunctional! And candidates for Electrical Vehicle Charging Stations, install chargers for EV drivers!
Federal tax incentives, 30% tax Credit for Purchases on Renewable Energy Equipment.
Adding all the rebates and incentives, you maybe only paying 30% of the total cost! Check it out by sending your utilities bill to us by fax 626-316-7223 or email sales@symmetryco.com , will help you to size a suitable system, find rebate and tax credits!
===> Other states check http://www.dsireusa.org/ for local rebate programs!
Solar Carports |
Solar Patios |
Solar Trellis |
Solar Tracker |
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Instead of conventional Canvas Awning that faded by weather, {V design can use the awnings for harvesting solar energy and also providing shades for
the building's windows. To save indoor cooling expense for the Summers and also allow sun lights in Winters! Details please see Passive Solar!
III. Solar Ark (Sanyo) & Solar Town (Kyocera)
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V. Fire Safety:
Install outdoor independent metal structures like carports, patios, Gazebos, avoiding using roof.
Fire fighters needs to break hole on roof to let the flames out, PV array will be a problem.
And high up on the roof, PV array is not easy to clean. A ground metal structure one story high,
easy to hose it clean once a month to keep maximum power output!
New Fire Guideline: DC panels needs walkways and
access points on rooftops but not AC panels.
It is not uncommon in the US for the DC voltage of string arrays to exceed 800V
under no load conditions. The potential electrical hazard may restrict
firefighter’s access to the roof and undermine their ability to save lives.
Firefighters typically open large holes in the roofs of burning structures to
ventilate out hot gasses and fumes. Such gasses and fumes suffocate trapped
people/animals and can explode.
On April 22, 2008, the
California Department of Forestry and Fire Protection Office of the State Fire
Marshal issued the Photovoltaic Installation
Guideline that requires major walkways and access points on rooftops with PV
installations.
Although the guideline helps in saving lives, it does not eliminate the danger
of high voltage string PV arrays. Furthermore, the guideline severely limits
available spaces on the roofs for PV modules rendering many roofs uneconomical
for PV installations.
Read more about the concerns: PV Safety and Fire-Fighting
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