Case Studies | DesignWithDC

WTC

Case Study · POE Lighting & Smart Building Consultancy

World Trade Centre, New Delhi

📍 New Delhi📐 5.5 million sq ft + 2.5 million sq ft basement parking👥 45,000 occupants🗓 Completed 2020

The scale

One of India’s largest smart commercial developments — around 35,000 LED fixtures across office towers and basement parking, with contact-less access for 45,000 occupants and every building system connected.

What we delivered

48 V DC lighting over Cat6 — replacing 230 V AC wiring in conduit, earthing and protection switchgear.
100% dimmable lighting driven by networked sensor data; 20% of fixtures colour-tunable, over Power over Ethernet and wireless.
20,000+ sensors for presence, daylight, temperature and humidity in common areas and parking — no manual switching.
One integrated platform — lifts, access control, lighting, HVAC, CCTV, fire alarm, PA, unified voice & video, automated windows, smoke extraction and more.

59%

lower energy bill over 30 years

55%

less CO₂ over 30 years (~85,600 t avoided)

53%

lower maintenance & replacement cost

net extra investment vs conventional AC

Load, energy & carbon (conventional AC = 100)

Conventional ACDesignWithDC DC

Cost of ownership (conventional AC = 100)

Conventional ACDesignWithDC DC

Same upfront budget. Networked DC controls with 100% sensor-based dimming add cost — but driverless fixtures (25% cheaper), Cat6 DC distribution (60% cheaper than AC wiring, earthing & switchgear) and lower fire-containment, earthing and protection needs offset it completely. Net extra investment: zero.

Metric	Conventional AC system	DesignWithDC DC system
Connected lighting load	40 W per fixture	25 W per fixture — 38% lower
Consumed load	75% of connected load	50% of connected load — 58% lower overall
Energy bill (30 years)	Baseline	59% lower
CO₂ emissions (30 years)	Baseline	55% lower — ~85,600 t avoided
Fixture life before replacement	5 years	7 years — 40% longer
Annual maintenance	10% of system cost	5% — 63% lower overall
Operations	Manual	Complete automation based on sensors
Failure feedback	None	Alarms and alerts for failures
Predictive maintenance	None	Predictive maintenance alerts
Building Management System	Not integrated	Complete BMS integration
Fire load	High	Reduced — Class-II wiring
Maintenance	Difficult	Easy
Electrical safety	Prone to electrical shocks	Touch-safe installation

Case Study · Lighting and POE Lighting Consultant

Standard Chartered Bank

📍 6th, 7th & 8th Floors, Siddha Tower, Kolkata🗓 Completed 2025💡 Intelligent Networked DC Lighting

The brief

Reduce fire risk, cut energy use and CO₂ emissions in line with the bank’s global ESG mandate, and give the facilities team central scheduling and monitoring across three floors.

What we delivered

Centralised DC architecture — DCHUBs power and control driverless LED fixtures over Cat6 cable. No AC joints or in-line connectors in the ceiling void.
Low-voltage safety — under 60 V DC, so no arcing or overheating, and wiring stays safe during maintenance.
Sensor-led operation — occupancy and lux sensors dim lighting by daylight and presence.
One dashboard — live status of every light, sensor and emergency circuit; scenes adjusted on all three floors with one click.

6 t

CO₂ saved per year

40%+

energy saved annually

64%

less copper

48%

lower connected peak load

Conventional AC vs DesignWithDC DC system

Conventional ACDesignWithDC DC

Energy used on a working day (13 operating + 11 non-operating hours)

Moving to DC alone cut daily use by 24%; adding occupancy & daylight sensing took it to 40%.

Metric	Conventional system	DesignWithDC DC system
CO₂ emission (annual)	Baseline	6 t saved every year
Copper usage	~634 kg	~226 kg — no drivers in fixtures, limited switchgear, less earthing & cabling
Connected peak load	20 kW	10.4 kW (8.4 kW with dimming)
Working-day energy	200 kWh	120 kWh
Fire risk due to wiring	Moderate – High	Near-zero
Central monitoring	None	Single dashboard with instant control of all floors

Case Study · X-POE Lighting and Lighting Consultant

Zavenir Daubert India Pvt Ltd

📍 Binola, Gurugram📐 45,000 sq ft incl. outdoor campus🗓 Completed 2025

The brief

For its new India corporate headquarters and plant — and being in the chemical business — Zavenir Daubert needed lighting that lowers fire risk, improves employee and material safety, cuts CO₂ and energy use, and keeps operations running.

What we delivered

Zero fire-risk wiring — Cat6/Cat7 from a central DC panel on the X-POE platform; no AC joints, and driverless fixtures run cool.
Built-in emergency lighting — central battery backup switches on instantly for exits, corridors and stairwells; priority lights stay on even during network faults.
Live safety monitoring — a dashboard shows every light, sensor and emergency circuit; sensors guide safe evacuation.
Linked to life-safety systems — during a fire alarm, scenes switch automatically to light escape routes.

20.9 t

CO₂ saved per year

23.2 MWh

energy saved per year

69%

lower one-time CO₂ footprint

709

LED drivers eliminated

Conventional AC (DALI) vs DesignWithDC DC system

Conventional ACDesignWithDC DC

Where the 20.9 t of annual CO₂ saving comes from

Energy saved: 16.6 MWh from smart dimming + 6.6 MWh from removing drivers = 23.2 MWh a year.

Metric	Conventional system	DesignWithDC DC system
CO₂ footprint (one-time)	2.1 t	0.66 t
CO₂ emission (annual)	Baseline	20.9 t saved every year
Energy (annual)	Baseline	23.2 MWh saved every year
Fire risk due to wiring	Moderate – High	Near-zero
Emergency light readiness	Unreliable	Fully automated
Central monitoring	None	Full dashboard with alerts
Maintenance risk	High (live AC circuits)	Safe (low-voltage plug-and-play)

How these numbers are calculated

Figures compare the installed DC system with the conventional AC design for the same space. Energy savings combine removal of LED drivers (no AC-to-DC conversion) with lux- and presence-based dimming. CO₂ uses a coal-heavy grid factor of 0.9 kg CO₂ per kWh; one-time CO₂ covers copper in point wiring and earthing at 3.8 kg CO₂ per kg of copper.

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