Electricity generated by a Solar Photo Voltaic (PV) system can be directly consumed by the load itself or can be  stored in a battery bank or can be sent out to the grid. A solar PV system in which the electricity generated can be sent to the grid is called an on-grid system. This type of [...]
The difference between ordinary fans and superfans is the motor. Motors work on the principle that like magnetic poles repel. The fan blades are attached to a shaft that is connected to the motor. The motor has two main kinds of magnets. A permanent magnet and an electromagnet. The polarity of the electromagnet is changed [...]
Harsha sent me an urgent email this morning. He said, "It might be true that sun can give 5 units/m2/day. But because the efficiency of solar panels is only 15% and there are losses in the system, we only produce 0.30 to 0.6 units/m2/day. Â For example a battery based system will give you 3 units [...]
There are 7 billion+ humans on earth to feed and meet the energy requirements of. This number is growing exponentially. It means that we are a successful species. Every successful species has altered the environment to such an unfavourable level that the species became extinct. If humans want to survive for a long time, we [...]
It's estimated that in India we have 330 million houses, out of which number of houses with proper roofs of size 100 to 300 sqft to accomadate 1-3KW solar systems will be around 150 million. If we consider that we can aggressively solarize 10% of these roofs by 1KW of solar system by 2022, then [...]
Renewable Energy Ministry aims at four solar power plants of 1,000 Mw each http://economictimes.indiatimes.com/news/economy/policy/renewable-energy-ministry-aims-at-four-solar-power-plants-of-1000-mw-each/articleshow/36119661.cms
