November 2014

Solar is cheaper than Coal based energy

By |2018-01-17T18:20:55+05:30November 29th, 2014|

Solar and Wind energy sources  had two main issues. They were expensive and were not immediately dispatchable. But at utility scale they are not expensive any more. Internationally, in Texas, U.S,  Austin Energy, a solar developer, has agreed to supply the power from their solar farm at 5 cents a kilo-watt hour. That's Rs 3.11 [...]

Oh Sunlit Morning — A Poem by Rabindranth Tagore

By |2018-01-17T18:20:55+05:30November 26th, 2014|

(Oh the beautiful Sunlit Morning) Wash me with the springing Light-Rays of yours, and remove the dust which has covered my true self, O the beautiful Sunlit Morning, Wash me with the beautiful Light-Rays of yours, The one within me who is still entangled within the net of sleep, you gently touch his forehead with [...]

Sun2Car – Mahindra Reva E20

By |2018-01-17T18:20:56+05:30November 25th, 2014|

We at EcoSoch are always proud to own a REVA for our company. We are not only using it for our personal transport but also use it to deliver our Energy efficient Fans, LED Lights, Composting Pots to many of our customers. It had not only attracted many ogles like no other vehicle we ever [...]

Site Survey & Assessment for Solar PV Installations

By |2018-01-17T18:20:56+05:30November 23rd, 2014|

It’s customary for a PV system integrator to do a Site survey and collect information about local conditions and issues  before any proposal is made. The information collected is then combined with the load patterns and the customer preferences to make a final proposal. There are lot of aspects in doing a site survey for [...]

Assessing Energy Needs for Solar Photo-voltaic System

By |2018-01-17T18:20:56+05:30November 17th, 2014|

Once you decide to go for solar installation on your rooftop, you would need to decide the type of solar rooftop PV system that you want to install. It could be off-grid roof-top or an on-grid solar rooftop PV solar system. For more details on off-grid and on-grid, please refer http://ecosoch.com/power/ For a standalone off-grid solar [...]

Solar PV String Inverters Vs Central Inverters

By |2018-01-17T18:20:56+05:30November 12th, 2014|

For more details on String inverters and Central Inverters, please visit the earlier post here: http://ecosoch.com/types-of-on-grid-inverters-micro-string-central/ Many-a-times it’s inherently assumed that the bigger the better and cheaper. So ideally speaking the Central Inverter architecture (small number of very large inverters ) are cheaper and have better performance that that of String Inverter Architecture (large number of [...]

Advantages and Disadvantages of Micro Inverters

By |2018-01-17T18:20:56+05:30November 11th, 2014|

  Solar Micro Inverters existed since the advent of the solar PV systems, but then due to high costs associated with manufacturing, it wasn’t popular until recently when a company enphase made the first commercially successful micro inverter M175 in 2008. Since then many established companies like SMA, Power-One (now ABB), Delta and other companies [...]

Types of Solar On Grid inverters – Micro, String & Central

By |2018-01-17T18:20:56+05:30November 8th, 2014|

There are three type of On grid or grid-tie inverters (for details on what is a grid-tie inverter, you can refer to an earlier post  http://goo.gl/0jtWMl). They are 1. Micro inverter 2. String inverter 3. Central inverter. A Micro inverter is connected a single solar panel to  convert its generated DC current to AC current. This [...]

Effect of Temperature on Solar Panel power generation

By |2018-01-17T18:20:56+05:30November 6th, 2014|

It’s a common misconception that the solar panels generate more energy with higher temperatures and less energy with lower temperatures. So the assumption is that we have more power generated in places like Chennai than in Bangalore or for that matter in Himachal Pradesh. But in reality,   solar cells, like in all semiconductors  are [...]

Grid-tie inverters – How do they operate?

By |2017-11-20T16:21:55+05:30November 5th, 2014|

Inverters take DC power and invert it to AC power so it can be fed into the electric utility company grid. The grid tie inverter must synchronize its frequency with that of the grid (e.g. 50 or 60 Hz)  and limit the voltage to no higher than the grid voltage. A high-quality modern Grid Tie inverter [...]

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