Start with measures that need little capex and rely on discipline and metering.
Key points
- Fix compressed air leaks and improve maintenance routines.
- Install sub-metering for high-load areas to identify anomalies.
- Optimize HVAC setpoints and maintenance schedules.
- Upgrade lighting to LEDs with occupancy controls.
- Create a simple monthly ESG dashboard: energy, water, waste, compliance.
Once these are stable, you can evaluate renewables and deeper process optimization.