Solar barriers in Delhi Metro to cut noise, generate power
In a first, the Delhi Metro is going to install solar sound barriers on its elevated corridors that not only would reduce noise but would also generate electricity.
To start with, the Delhi Metro Rail Corporation (DMRC) is planning to put solar sound barriers on the viaduct between its upcoming Okhla Vihar and Jasola Vihar metro stations as a pilot project. The two stations fall under the Magenta Line of the Phase-III network and installing such barriers on either side of the stretch could help DMRC generate as much as 1 MWp (mega watt peak) of solar energy.
“The plan is to install bifacial photovoltaic (PV) solar panels which could also act as noise barriers on the elevated corridor like there are on parts of the airport metro and Gurgaon’s Rapid metro. Bifacial solar systems are installed vertically and the PV panels are there on both sides,” said a metro official.
If implemented, it would be the first in India as such installations are mostly found in European countries. In countries like Austria, Switzerland, Germany, France and Italy, solar sound barriers have been put up along major highways and even a few railway tracks.
“The generated solar power will be utilised for captive application of Delhi metro and the surplus power will be fed to the DMRC grid. The scheme aims to reduce the fossil fuel based electricity load on main grid and make the system self-sustainable from the point of electricity,” reads the tender that was floated to invite bidders for the project.
The DMRC has planned the project in the RESCO model where it would pay the concessionaire a levellised tariff is Rs5.25 per kWh for 25 years. “The stretch needs a noise barrier as it is a congested area with a lot of residential colonies. In case the response is not so good then the proposal could also be restructured. In India, currently there are very few companies which have the expertise in such solar sound barriers,” a metro official said.
At present, the Delhi Metro has the highest installed solar generation capacity in the capital that stands at 15MW. “We are targeting to increase our solar generation to 20MW by the end of 2018 and 50MW by 2021. Most of DMRC stations, depots and roofs of residential colonies are being utilized for solar power generation,” the official added.
Shocking scenes were witnessed in Delhi when two people- a teenager and a man- were injured after getting attacked by a group of people in the Wazirabad area on Thursday night, police said on Friday. CCTV footage of the attack - shared by news agency ANI - showed the group of around 10 people attacking Jatin, aged 17, and Ajay, aged 42. Jatin and Ajay were injured in the attack, Deputy Commissioner of Police (north) Sagar Singh Kalsi said.
An alert patrolman averted an accident by stopping a locomotive along the Mumbai-Pune rail route as it was approaching a fallen boulder on the track in the early hours of Friday. Rail services on the route that had to be temporarily halted but it was restored by 8:15am on Friday morning. Patrolman Motiram Lodhi who was on duty at that time, immediately stopped the approaching locomotive and informed his seniors about the incident.
A 23-year-old woman from Karnataka's Ballari named Vidyasri B has sent 900 rakhis to army personnel stationed at external borders on Raksha Bandhan, The Times of India reported. Vidya reportedly sent these rakhis through an army organisation in Bengaluru, Yodha Namana. Out of 900 rakhis, 300 were sent to soldiers at the Wagah border, 300 to soldiers at the Assam border and 300 to the Border Security Force personnel in Haryana, said the report.
The Shiv Sena on Friday slammed Maharashtra's Eknath Shinde-led government for exonerating Bharatiya Janata Party leader Kirit Somaiya in a case related to alleged misappropriation of funds raised to save decommissioned aircraft carrier INS Vikrant from getting scrapped. An editorial in Sena's mouthpiece Saamana said that after Shinde, who became the chief minister with BJP's help after rebelling against Shiv Sena chief Uddhav Thackeray, came to power all “scamsters are having a free run”.
In a tragic incident, at least five persons died while four others were hospitalised after consuming spurious liquor in Bihar's Saran district on Friday. Mohammad Alauddin Khan (resident of Audha village), Kameshwar Mahto alias Loha, Ramjeevan alias Rajendra Ram, Rohit Singh and Papu Singh (Bhuwalpur village) died after consuming the poisonous liquor. Four others namely—Ramnath Mahto, Lalbabu Shah, Shankar Rai and Hira Rai are undergoing treatment in the hospital.