𝗛𝗲𝗮𝘁𝘄𝗮𝘃𝗲𝘀 𝗮𝗿𝗲 𝗶𝗻𝗰𝗿𝗲𝗮𝘀𝗶𝗻𝗴 𝘁𝗵𝗲 𝗲𝗹𝗲𝗰𝘁𝗿𝗶𝗰𝗶𝘁𝘆 𝗿𝗲𝗾𝘂𝗶𝗿𝗲𝗱 𝗳𝗼𝗿 𝗰𝗼𝗼𝗹𝗶𝗻𝗴.

 

But higher consumption does not necessarily mean that buildings are being cooled effectively.

During extreme heat, an #HVAC system may consume more energy while continuing to:
▪️ condition empty areas;
▪️ maintain uneven temperatures across occupied zones;
▪️ provide ventilation that does not correspond to actual occupancy;
▪️ operate equipment independently of zoning and real demand;
▪️ reach its setpoints without delivering uniform comfort.

➡️ This distinction becomes increasingly important.

Energy consumption per square metre tells us how much energy a building uses in relation to its surface.

It does not tell us how effectively that energy is converted into thermal comfort and indoor air quality where people are actually present.

✔️ A lower kWh/m² may result from reduced occupancy.
✔️ A higher kWh/m² during a heatwave may be technically justified.

Neither figure, considered alone, demonstrates whether the #HVAC system is performing correctly.

A more complete assessment must also consider:
▪️ comfort during occupied hours;
▪️ energy use in active and inactive zones;
▪️ ventilation in relation to actual demand;
▪️ temperature differences between occupied spaces;
▪️ the coordination of sensors, zoning and control sequences.

➡️ Conventional energy indicators remain essential.

But as cooling demand grows, reducing consumption cannot be separated from improving how cooling is delivered.

➡️ This moves the analysis beyond equipment efficiency.

It brings design, air distribution, controls, commissioning and ongoing operation into the same performance assessment.

𝗗𝘂𝗿𝗶𝗻𝗴 𝗮 𝗵𝗲𝗮𝘁𝘄𝗮𝘃𝗲, 𝘁𝗵𝗲 𝗿𝗶𝗴𝗵𝘁 𝗾𝘂𝗲𝘀𝘁𝗶𝗼𝗻 𝗶𝘀 𝗻𝗼𝘁 𝘀𝗶𝗺𝗽𝗹𝘆 𝗵𝗼𝘄 𝗺𝘂𝗰𝗵 𝗲𝗻𝗲𝗿𝗴𝘆 𝗮 𝗯𝘂𝗶𝗹𝗱𝗶𝗻𝗴 𝗰𝗼𝗻𝘀𝘂𝗺𝗲𝘀.

It is how much useful cooling that energy actually delivers.