Why a System Rather Than Projects

Most organisations pursue energy savings as a series of projects: a lighting replacement, a compressor upgrade, a boiler control. Projects deliver real savings and then the savings decay, because nothing maintains them.

Why savings decay

• Set points are adjusted back for comfort or convenience and never restored.
• Controls are put into manual during a fault and left there.
• Equipment installed for efficiency is bypassed when it causes a production problem.
• The person who understood the system moves on.
• Nobody is measuring closely enough to notice consumption creeping back up.

What a management system adds

ISO 50001 applies the familiar Plan-Do-Check-Act structure to energy, requiring an energy review, a baseline, performance indicators, objectives, operational controls, measurement and review. Its distinctive requirement is continual improvement in energy performance — not just in the system, but in measured consumption. Certification without demonstrated performance improvement is not available.

Design and procurement

The standard also requires energy performance to be considered in design and procurement. This is where the largest savings are locked in or lost: equipment bought on capital cost alone commits the organisation to its running cost for its entire life, and that running cost usually exceeds the purchase price many times over.