Why do it:

Upgrading to LED lighting with smart controls reduces energy consumption, maintenance costs, and carbon footprint while improving light quality and flexibility. Controls such as occupancy sensors, daylight dimming, and scheduling ensure lights are only used when needed.

Typical Savings:

• LED retrofit alone: 50–70% reduction in lighting energy use compared to traditional fluorescent/halogen.

• LED + controls: Additional 10–20% savings through occupancy and daylight optimisation.

• Total potential: 60–80% reduction in lighting costs.

• Example: A site spending £20,000 annually on lighting could save £12,000–£16,000 per year.

Typical Costs:

• Rule of thumb: £25-£60 per m2

• LED luminaires (industrial, high-bay or office panels): £50–£150 per fitting.

• Smart controls (sensors, dimmers, wireless nodes): £30–£80 per point.

• Installation: £40–£100 per fitting depending on complexity.

• Software/commissioning: £500–£2,000 per site for control system setup and dashboards.

• Ongoing costs: Minimal — LEDs last 50,000+ hours, reducing relamping; controls may need occasional recalibration (£200–£500 per year).