Welcome to our Imperial College, EEE group project
website. For our group project we were assigned the task of designing a
product that tackled the issue of "bridging the digital divide".
The electricity supply from the grid in rural parts
of India can sometimes be inadequate and unreliable. We believe solar
power to be a suitable means to power the computers as India receives
about 300 clear sunny days in a year. This is equal to over 5,000
trillion kWh/year, which is far more than the total energy consumption
of the country in a year. The daily average solar energy incident over
India varies from 4-7 kWh/m2, depending upon location. As
well as this, in the last two decades the cost of photo-voltaic panels
(PV) has gone down by more than 10 times, increasing accessibility for
dispersed rural applications, and costs are expected to reduce further.
Moreover, solar modules can be easily installed anywhere, have no moving
parts, and are relatively maintenance-free. We devised a system for
running low power consuming computers through a solar powered battery
that automatically supplies the load when mains power is disconnected.
Detailed information about the device can be found on the product page.
Our device, which models a UPS device, takes advantage of the abundant
supply of sunlight in rural India to supply low cost power to computers.