Sky Light Design
Solar Panels mounted directly to the roof are asthetically
pleasing.
Solar Hot Water (up to 69% Effecient)
Flat Plate Collectors Vs. Evacuated Tube Collectors:
Collectors constructed with Thermafin are unmatched in efficiency. Read More
Far Right- Evacuated tube collectors still covered in snow 4
days after a snow storm in the area.
Right- Solar Flat Plate panel without
snow and operating fully functional.
Germany is at a latitude equivalent to Canada and uses flat plate collectors for over 95% of their solar hot water installations.
Flat plate collectors are always used when temperatures up to 160° F hot
water is needed.
This water temperature is adequate for domestic hot water,
certain types of space heating delivery system's , swimming pools or Jacuzzis.
Solar Research Certification Corporation, (SRCC) testing documentation supports
flat plate collectors performance over evacuated tube collectors at these
temperature ranges even in cloudy conditions.
Evacuated Tube collectors are
mainly used when temperatures in excess of 160° F are needed.
Flat plate collectors are less expensive, shed snow in the winter, and
are a more simple design that translates into a longer life expectancy than
evacuated tube collectors. Frost in the morning on flat plate collectors
dissipates faster than evacuated tube collectors because of the warm glass when
the sun is shining.
Solar Domestic Hot Water Tank Size:
The 120 gallon system is always more efficient unless the collector ratio
exceeds three gallons per sq. ft. of collector area. A 40 sq. ft. collector with
120 gallons in any climate will collect more BTU's than an 80 gallon tank and
result in more savings during intermittent weather, such as sunny days followed
by cloudy ones. Most buildings and basements can accommodate the added size of
going from a 80 gallon tank to a 120 gallon tank and the added cost is minimal
when compared the life cycle savings in energy
Parts of the above and below are from Solar Hot Water Systems by Tom Lane
copyright 2004 Lessons Learned from 1977 to Today

SHW System Pros &
Cons
Design
Data & Other Cost Benefit Analysis
Panels
Required For Domestic Hot Water Loads
Oil Four Panel
Prototype 3 Person Load
Oil
Four Panel Prototype 4 Person Load
Oil
Four Panel Prototype 5 Person Load
New Hot Water Facts:
1. Solar hot water has a payback (greater than 10%) that is less than eight years even with current fossil fuel prices. Financial institutions recognize solar hot water as a no risk investment. In most cases, your Solar Hot Water system will pay for itself by increasing your property value. Generally, your solar hot water system will increase your property value more than what you initially paid for the system.
2. Tax credits and grants from State and Federal government with utility rebates will often reduce your installation cost by more than half.
3. Solar Hot Water is affordable and it has been proven over the last 30
years that it will supply over 70% of your hot water needs even in the North
East.
4. Northeast Solar & Wind Power is representing the largest solar
flat plate manufacture in the US that has over 30,000 installations. Their
panels have a proven 30 year design life, and other government mandated
certifications.
5. More than 95% of the solar hot water installations completed through
out the world in the last five years have been with flat plate collectors.
6. Fossil fuels are not going to stay at their current price so therefore
your investment will only get better in time.
SHWS For Space Heating Facts:
In addition to supplying 70% of your yearly domestic hot water needs additional solar hot water panels can also supply up to 50% of your space heating needs, even in the Northeast.
Excess heat from additional panels can be used to heat your pool or Jacuzzi
during the summer months.
Requirements For A SHWS System :
Your roof must be in good condition and the location of your panels
either on your roof or ground mounted must be unshaded. Solar hot water panels
can be plus or minus 30 degrees from true south and continue to work well during
all seasons. Solar Hot Water panels are 69% efficient and can also be mounted
beyond the +/- 30 degrees from true south with an acceptable degree of customer
satisfaction.
Northeast
Solar & Wind Power, LLC
Clean, Reliable & Affordable
Energy   Energy Star
Partner | U.S.G.B.C. Member
Northeast Solar & Wind Power,
LLC | (401) 884-0131 |
P.O. Box 1654, East Greenwich, RI
02818
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