44 / 64
From August 2014, the option for the import of power
from the Grid or DG set was removed and the output
power was given directly to the main bus bar of the system,
through a KwH meter. This was done for better
observation of the plant’s performance and output.
Currently the solar modules charge the battery to a
minimum level and the rest of the power is given into the
main bus bar of the power system, where it can be utilized
in any part of the factory or domestic load.
Performance
The plant has been generating energy from 7 May 2014
to date uninterruptedly, but with a variation of sunshine
especially during the rainy season, the generation varies
abruptly.
The month-wise total units generated are as follows:
MONTH
KWHGeneration
May 2014
3518 units
June 2014
3625 units
July 2014
7388 units
August 2014
6013 units
September 2014
5852 units
October 2014
6650 units
November 2014
3183 units
December 2014
2773 units
January 2015
2022 units
TOTAL
41024 units
Regarding the financial aspects, the plant has generated
electricity worth Rs. 3,56,908/- to date. (Considering
average unit rate of Rs. 8.70/Kwh as per ASEB billing for
F/Y 2014/15.)
On the other hand, considering the environmental aspects,
the plant has generated electricity without any harmful
emission into the environment. Approximately 36 ton of
carbon dioxide emission has been averted.
Future Aspects & Scope for Improvement
it has been only a year since the system was installed and
as it is still under observation, it is too early to comment
on the performance and reliability of the system on a long-
term basis.
However, at the moment this system is capable of
supplying power only to the main Division of the estate.
The system can be expanded to 200Kw to be able to feed
both the main Division and the out Division of the estate.
The battery bank capacity has to be increased in
accordance with that.
This system is connected to the estate’s main bus bar for
in-house usage only. However, if the system can be
expanded to a capacity where the generation exceeds the
demand, the excess amount can be supplied to the Grid
at a much higher rate than the consumption rates.
Final Verdict
This is a ‘first of its kind’ project for this Company as well
as for the tea industry. This project is a step towards the
future of energy and towards sustainable growth. The
pathway to a cleaner and greener world of tomorrow starts
from here and we all hope this initiative will lead the way
to a better future…
44 JULY 2015
Inverter Panel