7.2.5 Energy wastage identification

Energy reviews to identify areas where energy waste is highest

Srinakharinwirot University (SWU) reviews its energy use to identify the areas where energy use and potential waste are highest. Under the SWU Zero Carbon policy, announced on 13 December 2024, the University has a target to reduce electricity use by 5% each year, and it uses monthly energy data to see where energy-saving measures are needed most.

Energy data reviewed by campus, month and building

The SWU SDG Sustainability Web App dashboard brings together monthly electricity consumption for Ongkharak and Prasarnmit campuses, electricity generated by solar PV systems by building, and a building database that lists the floor area of each building by faculty or unit (64 buildings with 695,705 m² at Ongkharak Campus). The dashboard notes that this building database is intended to support the planning of energy-saving measures based on energy use per square metre (energy use intensity, EUI).

Findings of the 2025 review

1) Energy use intensity: In 2025 (B.E. 2568), Prasarnmit Campus used 102,953 GJ of electricity over 319,543 m² of building floor area (0.32 GJ/m²), more than twice the intensity of Ongkharak Campus, which used 97,606 GJ over 695,705 m² (0.14 GJ/m²). Prasarnmit Campus is therefore the area with the highest energy use per square metre.

2) Change between years: Electricity use at Ongkharak Campus fell by 7.6% from 2024 to 2025, while use at Prasarnmit Campus rose by 12.1% (from 25,505,465 kWh to 28,597,988 kWh), showing where further savings are needed.

3) Monthly peaks: At Prasarnmit Campus, monthly consumption rose from 1.03 million kWh in January 2025 to more than 3.2 million kWh in each month from August to October 2025, about three times higher, pointing to the period when energy-saving measures are most needed.

4) Building level: Solar generation and electricity use are tracked building by building; for example, solar power met about 14% of the Administration Building’s electricity use at Ongkharak Campus in 2025.

Figure 1. SWU SDG Sustainability Web App dashboard: electricity consumption in 2025 (B.E. 2568) by campus, monthly trend and monthly comparison between Ongkharak and Prasarnmit campuses (GJ). 

Source: SWU SDG Sustainability Web App dashboard – Electricity consumption (data for 2025, B.E. 2568) – https://script.google.com/macros/s/AKfycby53PzkcT8eUJD9a933GyE_59Tyse0n8TG1QjRJUxyqwEYqK_xBcjTKrLDgHnuEIs7G/exec

Source (Prasarnmit Campus floor area): Srinakharinwirot University Education Statistics, academic year 2022 (B.E. 2565), p. 36

https://script.google.com/macros/s/AKfycby53PzkcT8eUJD9a933GyE_59Tyse0n8TG1QjRJUxyqwEYqK_xBcjTKrLDgHnuEIs7G/exec 

Through these reviews of campus, monthly and building-level energy data, SWU identifies the areas where energy use is highest, so that energy-saving measures can be focused where they will have the most effect. The dashboard is published online, so the evidence is publicly available.