Category: Solar Power

Things to consider before buying a Solar water Heater

This article provides basic information on the components and types of solar water heaters currently available and the economic and environmental benefits of owning a system. Solar water heaters are cost competitive in many applications when you account for the total energy costs over the life of the system. Although the initial cost of solar water heaters is higher than that of conventional water heaters, the fuel (sunshine) is free. Plus, they are environmentally...

Solar Water Heater Maintenance Tips

Do’s Solar water heaters require little or no maintenance. Because of the thermosyphon principle there are no moving parts and no control units that can malfunction. Tile system will work automatically but there are some procedures you can carry out to improve the functioning of the solar water heater and thus increase electricity savings: Clean the glass cover regularly. Dust and dirt that is allowed to settle on the glass cover will block the sun’s rays...

What is a RESCO model? Explained

Under the RESCO model, a developer finances, installs, operates and maintains the rooftop solar power plant on the consumer’s roof. The developer signs a power purchase agreement (PPA) with the rooftop owner. The rooftop owners consume the electricity generated from the solar plant for which they have to pay a pre-decided tariff that includes the Operation and Maintenance (O&M) cost to the RESCO developer on a monthly-basis for the tenure of agreement....

solar lantern

How does a Solar Lantern work?

A Solar lantern is a simple application of solar photo voltaic technology, which has found good acceptance in rural regions where the power supply is irregular and scarce. Even in the urban areas people prefer a solar lantern as an alternative during power cuts because of its simple mechanism. A Solar Lantern is a portable lighting device consisting of a PV module, battery, lamp, and electronics. Battery, lamp, and electronics are placed in a suitable...

What permits & approvals do you need to install a solar PV system in your house?

Usually to install a stand alone rooftop off grid solar PV system no permits are needed. The off-grid solar PV systems can be installed for self-consumption in India without any permission or approval from any authority. You can cross check this with the solar policy of your state too as most of the regulations are mentioned there. How ever, if you are going for On grid net-metering or gross-metering you...

What are Solar collectors? How do they Work?

Solar thermal energy is the technology used for harnessing solar energy for thermal energy (heat). A solar thermal collector captures the radiant energy from the Sun and converts it into heat. A solar thermal collector collects heat by absorbing sunlight. The term “solar collector” commonly refers to solar hot water panels, but may refer to installations such as solar parabolic troughs and solar towers; or basic installations such as solar air heaters. The most basic type of collector is the solar cooker....

Why ETC (Evacuated Tube Collector) Technology is better than the ‘old’ FPC (Flat Plate Collector) Technology?

The ETC or Evacuated Tube Collector technology is almost a decade old and has evolved may folds. This technology, though much superior and suitable than FPC or Flat plate collector technology, could not take-off being more expensive than FPC technology. It will be obvious that the only advantage FPC ever had over ETC was lesser price. But now a days, with recent worldwide advances in mass production techniques of evacuated tubes, ETC...

Does Solar Water Heater systems require any maintenance?

Solar Water Heaters once installed requires very little maintenance. Maintenance of solar water heaters involves wiping the dust deposited on the glass surface once in 5 days. Wiping the glass every day will help increase the efficiency of the solar water heater system. Other important thing to be taken care of is to see that the main cold water tank from which water is supplied to the solar tank is always...