One of the key limitations to use solar energy apart from availability is the requirement of batteries to store energy. I was thinking on these lines and suddenly it occurred to me that there is a low hanging fruit.
Today almost all the offices, small or big, have UPSs and they all have batteries attached to them. These batteries are always connected to power and will be on trickle charge all the time. They would surely be ticking the energy meter.
If one uses solar panels to keep the batteries on trickle charge and use grid power only when needed, then you can reduce the energy consumption. If you do a cost-benefit analysis based on this set up, I'm sure solar would be more viable. I am gonna get in touch with my old colleagues who are in maintenance and the new colleagues in the infratel business to prepare a viability report shortly on this.
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