Solar Water Heater -
Ans: A Solar Water Heater is a device which provides hot water for bathing, washing, cleaning, etc. using solar energy. It is generally installed at the terrace or where sunlight is available and heats water during day time which is stored in an insulated storage tank for use when required including mornings.
Ans: A Solar Water Heater comprises of a or an array of solar collectors to collect solar energy and an insulated tank to store hot water. Both are connected to each other. During the day time, water in solar collectors gets heated which is either pumped or flown automatically on thermosyphon principle to the storage tank. Hot water then stored in the tank can be used for various applications.
Ans: A 100 liter per day capacity system suitable for 3-4 people can save up to 1500 units of electricity in a year, depending on hot water used. Higher capacity systems will save higher amount of electricity besides reducing higher amount of Green House Gas (GHG) emissions. Electricity is expensive and is not available due to power cuts in many areas when required for heating water.
Ans: On cloudy days also, if it is for a day or two, you still get warm water as water gets heated due to diffused radiation available in the atmosphere. The system, however, is either connected to an electric geyser in the house or an electrical back-up is provided in the storage tank of the system which is switched on when water is not sufficiently hot. So, you get hot water all the time even on rainy days.
Ans: For a house with one bathroom and 3 to 4 members, 100 liter per day capacity system should be sufficient. For more numbers of bathrooms, the capacity will increase accordingly due to pipe losses & more number of family members. Generally the capacity is decided based on hot water required in mornings for bathing. If the usage is in evening & at other times also, the capacity is decided accordingly.
Solar Street Light -
Ans: Solar lighting is safe and environmentally friendly since they do not require external power supply. There is no wiring required and installation is very easy. It is suitable for use in remote areas and location near water. And they run cost free; you do not have to worry about electricity bills.
Ans: Solar modules transform the solar energy into electricity, controlled and protected through the controller, convert the electrical energy into chemical energy and store in batteries. When use the electricity, the battery transform chemical energy into electrical energy for the DC-load use, or invert it into AC through the inverter for AC load. The battery and device stop working only when the battery runs out of electricity due to no solar radiation for a very long time.
Ans: The components of solar lighting system mainly include solar panels, solar controller, battery, light source, light pole and lamp shell, and some have to configure the inverter.
Ans: Solar lights need direct sunlight. The more sunlight received during each day, the longer the light will operate that night. Since solar lights are powered entirely by the sunlight they receive each day, operating times will vary by specific location, daily weather conditions, and season. Many of our solar lights can run for up to 8-10 hours. As a general rule, solar lighting performs better during the summer months mainly because the longer and sunnier days enable a full charge to be achieved. Adverse weather and short winter days do affect performance, as charge times are reduced in relation to hours of daylight and the strength of the light.
Ans: The batteries in your solar units are charged by the sunlight through the solar panel. The batteries must be charged properly prior to first use. Turn the switch to the off position and place the solar light in direct sunlight for 3 to 4 consecutive sunny days.
Ans: We utilize the latest L.E.D. (Light Emitting Diode) on our solar lights. Also CFL ( compact fluorescent lamp) can also be used.
Ans: You should never have to replace the LED bulb in your solar lights. LED will run up to 100,000 hours. LED is not replaceable.
Ans: No maintenance is required except for an occasional wiping of the solar panel to keep it free of dust, dirt, debris, or snow to allow the batteries to charge properly for optimum performance.