Page 53 - Shelter-April 2024

CASE STUDIES

Table 3: Existing System of Streetlights in Hyderabad compared to HPSV
Light type Numbers lamps.
High Pressure Sodium Vapor Lights (HPSV) • Entire monitoring system
150W HPSV 2,07,793 is automated via CCMS
250W HPSV 73,215 and online dashboards
are created.
70W HPSV 47,520
40W tube lights 16,475 Comparison of Streetlight
Metal Halide (HM( lamps Retrofitting Projects in
250W 16,536 Hyderabad and Pune

400W 18,150 Figure 2 of shows the
comparison
streetlight
120 W LED lights 254 systems retrofitting projects
250W Induction lamps 4 in Hyderabad and Pune in
Source: GHMC terms of project achievements
– both physical and financial.
3.2.2 Project features Some of the major benefits of
Although the project has the project include: Pune Hyderabad
a capital cost of Rs 271.40 • No initial investment by Proposed 83000.00 474125.00
crore, it also involves no the GHMC on the project. No. LED
lights
upfront investment cost for Capital 16.00 271.40
the GHMC. EESL assured • Electricity charges/ bill Cost (Cr.)
energy savings to the tune reduction of Rs 85 crore/ Actual No. 89582 474125
of 55% and provides free year. LED lights
O&M support for the contract • In addition, annual Total length 1450 9000
duration of 7 years. GHMC of roads (in
will reimburse EESL through maintenance cost km)
monetized energy savings, reduction of Rs 30 crore. Number 62 53
which are paid through the • Street lamps Lighting of street
Commitment account. EESL percentage has increased lights/km
of road
provided a guarantee of from 78% to 98%.
free replacement of street Table 4 shows the comparison
lamps due to manufacturing • Lux level has been of streetlight retrofitting
defects. Streetlight system improved by 60%
would achieve 98% minimum
incandescent rate of lamp
post; Illumination levels
are according to national
lighting code. It also involves
necessary adaptation works
of existing street lighting
system as well as setting
up of centralized control
and monitoring to improve
operational efficiency. Figure 2: Comparison of Streetlight Retrofitting Projects in Pune and Hyderabad

April, 2024, Volume 25. No.1 - SHELTER 51