16 FAQS ABOUT SOLAR BASICS

Best performance is achieved with direct sun light, however energy savings is guaranteed even in cloudy days thanks to diffuse radiation.

A.1.  Best performance is achieved with direct sun light, however energy savings is guaranteed even in cloudy days thanks to diffuse radiation.

A.2.  No, the system only works in daylight. At some times of the year there is insufficient daylight and that is why every system has a back up heating source

A.3.  Your Solar Hot Water System produces no emissions whatsoever. It is entirely without any discharge of greenhouse gases or other pollutants. In fact, each kWh produced by solar energy saves 0.24 kg of CO2 emission.

A.4.  Each kWh produced by solar energy saves 0.24 kg of CO2 emission. A 2 m2 collector produces in Sunpo approximately 6kwh daily. A 2 m2 system with 340 days of consumption will save 500kg of carbon dioxide a year. Over 15 year of service it will save 7.5 tons.

A.5.  Yes, but the energy used in manufacturing the system will be recovered after only two years of use.

A.6.  Yes, the system will work in cold temperatures. However, it does not work if the panel is covered with snow, as this prevents light striking the absorber plate.

A.7.  Nothing. If snow collects on the glass surface of the collector it will rapidly melt. In fact the design is such that it will melt more rapidly from the collector surface than it will melt for other parts of your roof.

A.8.  There is no need to.These will not significantly impair performance and when it next rains, they will be washed off.

A.9.  No, it is better to keep it on or instead consider covering the collectors.

A.10.  Photovoltaic systems rely on silicone cells and solar energy to generate direct electric voltage, which is later inverted to usable alternating current at net voltage. The total PV system efficiency is 10%. 13% for the module itself. Solar systems that use solar heat, rely on the sun’s radiation to heat the water in solar collectors. The heated water is collected in a storage tank. Average solar water heating system efficiency is 50-60%.

A.11.  Our Solar Hot Water Systems have a demonstrated recorded life expectancy of over 25 years and have proven to withstand the harshest weather conditions.

A.12.  Sunpo are much more affordable than many other solar hot water heaters. For a household of 4, the price of a full system may be similar to that of a new electric or gas system. Depending on you location (solar levels) and current hot water usage, the annual electricity or gas saving will differ. However in a normal household that spends 25% of its electricity bill on hot water heating, the full cost of the purchase may be recouped as quickly as 4-5 years in reduced bills. You will definitely make considerable savings during the life of the solar hot water heater. Federal and local rebates and incentives can provide an accelerated return on your investment.

A.13.  Sunpo evacuated tubes are very strong and not easily broken, but if the worst should happen, solar tubes are very easy to replace. Although Sunpo Solar Collectors have the ability to operate with several broken tubes, it is recommended that broken tubes be replaced immediately to retain efficiency. Replacement  tubes are available through your local distributor at a very reasonable price.

A.14.  Yes, in good weather the Sunpo solar collector can bring water to boiling point. Generally this is not necessary and so the system should be designed to provide a daily temperature rise of around 25-30oC (45-54oF) in the summer. Sizing a domestic system that can bring the cold water up to 60oC/141oF in a single day is not logical, because if hot water is not used for one day, the following day the system will be boiling and dumping hot water via the temperature relief valve. This is both a waste of energy and water! Please sensibly size solar water heating system to ensure optimal performance and minimal wastage of water.

A.14.  Yes, in good weather the Sunpo solar collector can bring water to boiling point. Generally this is not necessary and so the system should be designed to provide a daily temperature rise of around 25-30oC (45-54oF) in the summer. Sizing a domestic system that can bring the cold water up to 60oC/141oF in a single day is not logical, because if hot water is not used for one day, the following day the system will be boiling and dumping hot water via the temperature relief valve. This is both a waste of energy and water! Please sensibly size solar water heating system to ensure optimal performance and minimal wastage of water.

A.16.  Limited Warranty and Liability:

Sunpo works hard to provide quality products, but if there is a quality problem that effects the normal operation of the product we will work closely with the local engineering or installation team to ensure it is fixed as quickly as possible. The length of coverage and terms and conditions vary for each product, so please refer to the details:

a. Sunpo warrants to the distributor who purchased the product from Sunpo . Sunpo warrants that, for a period of 5 years for the tanks and 5 years for the collector and 1 years for the fittings from the warranty initial date, each component of the Products shall meet in all material respects the Sunpo specifications. The warranty for the heating elements is for a period of 1 year from the initial date.

b. There is no warranty for anodes.

c. During the Warranty Period, Sunpo shall, at Sunpo’s option, repair, replace or give credit for any component that is returned to an authorized service center and that is found by Sunpo to contain defects

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