By connecting energy monitors and temperature gauges to solar water heaters in the field it's possible to chart how much energy the electrical backup (booster) element is using to heat water at a particular home, 24 hours a day.
It also enables you to measure the temperature of the water storage tank and/or solar collectors.
And why is it important to measure the temperature and/or booster elements power consumption?
Because they are significant performance indicators of how efficient a solar water heater system is. All other things being equal, the less the booster element needs to work, the better the solar hot water heater is performing using the sun.
And the temperature measurements inform you how well the collector is converting the suns energy into heat for storage in the tank and how well the tanks insulation is working.
CHOOSE THE MOST EFFICIENT SYSTEMS
if you're thinking of installing your own solar water heater the efficiency information below, collected in the field from homeowners worldwide, will be invaluable in helping you decide which system to use.
These results will also help you work out accurately (instead of a guesstimate) what the monthly operating costs are and therefore how much you can potentially save in comparison to your current water heater if you install a solar one.
You can then also determine exactly what the payback period is based on an assessment of the expected monthly savings.
A big benefit for the homeowners doing the measurements is that they can adjust their water consumption patterns to help them save as much as possible by using the temperature and electricity usage feedback to achieve that.
So if you are already the owner of a solar water heater, you can make a planet saving difference by measuring the efficiency of your system and submitting the results here. Your review will allow you to enter and possibly win the prize in this competition.
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