Balaji Action Buildwell, Sitarganj: Solar I&C, BOS and Civil Works
Installation & commissioning, balance-of-system works, civil works and approvals on Balaji Action Buildwell's solar project at Sitarganj, Uttarakhand, for Tata Power Solar.
About the Balaji Action, Uttarakhand project
The orders describe the project in more than one way, and we show each scope as it was ordered rather than adding the figures together: rooftop BOS services for a project of 4000.32 kWp, installation & commissioning of a sheet-roof plant described as 3 MWp, and civil works with pile foundations for a ground-mount plant also described as 3 MWp.
Tata Power Solar's 2022 orders also covered a labour colony for the site crew and the CEIG approvals for the project.
Further orders in 2023 covered additional I&C work, an ITB canopy, additional cable trays, fire extinguishers and sand buckets, and cable lugs: the details that take a large plant from installed to inspected and handed over.
Our scope of work
- Installation & commissioning of the 3 MWp sheet-roof plant
- Rooftop BOS services for the 4000.32 kWp project
- Civil work and pile foundations for the ground-mount portion
- CEIG approvals
- ITB canopy, cable trays and fire safety equipment
- Labour colony for the site crew
Photos
How the Project Unfolded
The work, stage by stage, as it was ordered and delivered.
Rooftop services for 4000.32 kWp
BOS services for the full project.
Labour colony
Construction of a labour colony for the site crew.
I&C and approvals
Installation & commissioning of the 3 MWp sheet-roof plant; CEIG approvals for the project.
Safety and ground-mount civil works
Portable fire extinguishers and sand buckets; civil works and pile foundations for the ground-mount plant (ordered as 3 MWp).
BOS completion
Further rooftop services, cable lugs and additional cable trays.
Final works
ITB canopy and additional I&C works.
Challenges and How We Handled Them
Roof and ground on one site
A large sheet-roof plant and ground-mount civil works meant two very different jobs, height work and piling, on one industrial campus.
A camp for the crew
With a large crew on site for months, a proper labour colony was part of the scope: decent living conditions are part of working safely.
Approvals as part of the job
CEIG approvals for the project were in our scope, so inspection was planned into the schedule rather than added at the end.
What Our I&C Scope Covered
The standard rooftop installation & commissioning scope we deliver to EPC majors' specifications, after the mandatory quality and safety training and contractor safety sign-off.
Civil works
- Earth-pit chambers and covers (RCC/PCC)
- Foundations for inverters, ACDB, ITB and accessories
- Cable trenches at ground level
Mechanical
- Lifting and handling of all material to the roof
- Module mounting structure installation on the sheet roof
- Module installation and interconnection
- Canopies for wall-mounted inverters and junction boxes
DC side
- String wiring from modules to inverters, tagged and identified
- DC cables in conduit or tray
- MC4 connectors crimped male and female
- Array junction boxes
AC side and protection
- Inverters and inverter terminal boxes
- AC distribution board (ACDB)
- LT AC cables in trays to the approved layout
- Reverse power relays installed and commissioned
Earthing and lightning
- Earth electrodes and pits
- Earthing strips for structures, inverters and ACDB, including welding
- Lightning arrestors
Roof safety and access
- Skylight safety mesh
- Walkways and hand rails
- Safety lifelines for workers
- Scaffolding for installation
Monitoring, cleaning and handover
- Data monitoring system (SCADA / power manager)
- Module cleaning system with pump and motor
- Safety posters, storage under covers and care until handover
- Testing, commissioning and handover
