BLW installs country's 1st removable solar panel sys between rly tracks
The innovative project was inaugurated by BLW general Manager Naresh Pal Singh on the occasion of Independence Day.
This innovative approach involves installing removable solar panels on the sleepers, which are the support beams under the tracks. This pilot project, commissioned on Line-19 of the BLW workshop, uses an indigenously designed special installation procedure to mount solar panels between railway tracks without disrupting train traffic.
The system also allows for easy removal of panels whenever required for track maintenance.
In line with the
Indian Railways
' vision towards renewable energy and climate change mitigation, the BLW undertook this innovative initiative. The GM appreciated and encouraged chief electrical service engineer Bhardwaj Chaudhary and his entire team for successfully accomplishing this task. This innovation complements the existing rooftop solar power plants on BLW premises, further boosting green energy generation.
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"This project is not only a new dimension in solar energy utilisation but will also serve as a robust model for green energy generation in Indian Railways in the future," said the GM.
According to the BLW authorities, there were challenges addressed before installation. For vibration protection, rubber mounting pads have been used to reduce vibrations caused by passing trains, and for strong fixation, panels are bonded to the concrete sleepers using epoxy adhesive, ensuring a robust metal-to-concrete bond.
There is easy access for cleaning to keep panels free from dust and debris. The panels can be removed quickly with 4 S.S. Allen bolts for regular track maintenance.
The key technical highlights of this pilot project include 70 meters track length with 15 KWp installed capacity, using 28 panels. The power density is 220 KWp/km, and energy density is 880 units/km/day. The dimensions of solar panels are 2278 × 1133 × 30 mm, with 31.83 kg weight.
The module efficiency is 21.31% with 144 half-cut monocrystalline PERC bifacial cells. There are 68 junction box IP, and maximum system voltage is 1500 V.
The GM said with the Indian Railways' network spanning 1.2 lakh kilometre, this technology can be widely deployed on yard lines.
No land acquisition is required as it utilizes the space between tracks. The estimated capacity is 3.21 lakh units/year/km of energy generation. This innovation marks a significant step towards Indian Railways' goal of achieving net zero carbon emissions.
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