NHS CLCH Health Centre – IoT smart lighting saves 80%

• £3,600 in energy costs/year
• 19,000kWh of electricity/year
• 4 tonnes of CO2e emissions reduction/year

Even without a complete lighting overhaul, the results show how optimising LED output with the IoT control system dramatically cuts energy waste; even in buildings that have already upgraded to LED.

✅ Survey and solution design: CILS conducted a full investment-grade audit and designed an IoT LED system for 200 wireless sensors to be integrated into the existing LED fittings.

✅ Supply and guidance: CILS supplied all required components and guided the Trust’s contractors through the installation process.

✅ Commissioning and optimisation: Once installed, CILS fine-tuned the system, adjusting light levels, occupancy-based profiles, and daylight response settings for maximum efficiency and comfort.

✅ Live energy tracking: CLCH Sustainability team now have real-time access to their lighting energy use and savings via the CILS lighting dashboard.

During the Investment Grade Audit, CILS recorded key lighting data points to establish the baseline energy consumption.

Post-installation, the IoT sensors continuously monitor lighting real-time energy use and report to the CILS Lighting Dashboard.

This ensures that savings are not just estimated, they are measured, tracked, and verified, helping the CLCH to accurately monitor its carbon reduction efforts.

CILS Lighting Dashboard for World’s End Health Centre shows over 80% lighting energy reduction,

measuring true lighting consumption against the previous lighting baseline.

With IoT-enabled lighting, World’s End Health Centre now benefits from:

• Intelligent lighting adjustments eliminate unnecessary energy use
• Real-time lighting energy reporting via CILS lighting dashboard
• Enhance comfort and efficiency through adjustable lighting levels
• Remote access to system manager
• Occupancy heatmaps for insights into building use

This upgrade is just the beginning. The same IoT infrastructure used for lighting can also support:

• Automate emergency lighting compliance (testing and reporting)
• Integrate with HVAC, BMS and plug loads for even greater energy savings
• Enable intelligent space and room management
• Real-time location services
• Asset tracking to prevent loss of equipment

With this smart, future-proof approach, CLCH is one step closer to achieving decarbonisation — without major infrastructure overhauls.

Worlds End Health Centre is a relatively small site, but for larger NHS buildings, the savings from lighting retrofit scale up dramatically — especially when combined with a full lighting redesign.

Best practice is to implement an IoT smart-controlled lighting system during the LED installation for maximum efficiency. However, as this case study shows, retrofitting IoT controls into an existing LED system — whether with basic controls or none at all — can still unlock substantial energy savings and accelerate your NHS estate decarbonisation.

If your NHS Trust is looking to:

✅ Cut lighting energy use by up to 90%

✅ Reduce operational costs while improving energy efficiency

✅ Create smarter, more efficient buildings

CILS are ready to help you do this — cost-effectively.

• We recently helped an NHS Trust secure £2M in NEEF funding, and we can support others to prepare for the next round (Press release coming soon!).
• CILS is on the Smart Building Solutions Framework, making procurement quick and simple
• Zero capital funding solutions available
• Free consultation

Looking to make your healthcare facilities more energy efficient, or simply upgrade to better, smarter lighting? Contact CILS today for a free consultation. Our tailored smart lighting solutions support your estate, your budget, and your sustainability goals.