In India the Healthcare sector is one of the fastest growing entities and Hospitals are the backbone of thehealthcare sector. Addition of latest equipments and continuous operations
require uninterrupted power supply for suitable functioning, which leads to
large energy bills. Hospitals also require standby electricity generators to
ensure a continuous supply of power at all times. Most private hospitals today
face energy costs that continue to rise, creating a very difficult challenge to
manage the facilities’ operational budget.
MVJ Research Hospital one of the
leading multi-specialty research hospital in Bangalore reached out to us with a
requirement for a rooftop solar photovoltaic (PV) system for their facility in
Hoskote, Bangalore. The hospital management shared the following inputs,
· With the addition of new state of the art
equipment and large number of beds energy bills are on the rise.
· The hospital faces a lot of intermittent power
supply from the state grid during the day, leading to excessive usage of the
· The hospital has always been progressive and
wants to have a green footprint by adopting clean energy and also reduce their
Based on the above inputs,
U-Solar’s team designed a customized solution to meet their requirement based
on available rooftop space, load details and DG loading. The hospitals
primarily load requirement during the day are the medical equipments followed
by the lighting load. The hospital also faces power cuts of 4-6 hrs depending
on the season.
A 200 kW grid connected rooftop
solar PV system that synchronizes with the grid & diesel generator was designed
for captive consumption. The total energy yield expected from the system is approximately
3, 30, 000/year. The system is expected to offer ~30% reduction in the energy
bills for the hospital, with savings expected to be ~22 lakhs/year in energy
The hospital has installed the
rooftop solar PV system in a phased manner. The first 100 kW grid connected
system was commissioned in July-2014 and has generated ~1.1 Lakh Units to date.
The second 100 kW grid connected system has been commissioned on March 2015.
The estimated payback period for the project is ~5 years.
The 200 kW grid connected system has been
installed with ~834 modules of 240 Wp indigenously manufactured polycrystalline
solar modules having an efficiency of 14.9%. High efficiency grid connected
string based inverters of 24 numbers having a 9.6 KVA rating from one the world
leaders in on-grid inverters have been installed. The inverters have been
pre-programmed to give solar priority. Protection for the system have been
provided on both the DC and AC side with surge protectors, lighting arrestors
& earth pits for the smooth operation. Both systems have been connected to
the online-monitoring facility and also have analog meters at the site to check