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Solar Water Works founder, Randy Reu, was interviewed for and quoted in a recent
Wall Street Journal Article. Read it here:
$$$
See how much you can save on your annual energy costs by converting to
Solar Water Heating! Try our new Savings Calculators
NOTE: These cost savings calculators are for New Jersey only
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SAVINGS CALCULATOR
NATURAL GAS
Click below to choose a different Fuel Type
These production values are for Apricus AP-30 collectors,
the savings estimates are based on NJ solar insolation levels provided by NASA.
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When comparing other production values PLEASE NOTE the
following variables that are incorporated into this
program.
Solar insolation levels vary throughout the country
depending on your latitude and local weather. A solar insolation level is
simply the average daily amount of energy received in a specific
region. This number is the average cumulative kWh/m2/day
based on 22 year historical data. When comparing with other collector
performance please compare "apples with apples" as we use this 22 year
average and not the maximum possible daily output you could receive to calculate system
production...after all not every day is sunny!
Because solar insolation levels vary from month to
month this estimator uses data from the "Apricus System Sizing Program" to
calculate the yearly average of Btu’s produced per day. This program takes into account
the latitude, temperature, solar insolation levels,
installation angle, sun angle throughout the year and collector efficiency.
In NJ the average
daily collector output throughout the year (including winter) is calculated
to be 25,000 Btu –or- 25kBtu.
These calculations are based on a single AP-30
collector installed in NJ on a 40º angle facing due south. Collector efficiency is adjusted throughout the year to account for temperature and one Therm of natural gas is calculated to produce 100Kbtu.
Apricus collectors are among the most efficient on the
market today so be sure to verify any claims of other collectors producing
in excess of these collectors.
For more information on local solar
insolation levels SEE: eosweb.larc.nasa.gov
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