7.5.1 Low-carbon energy use

In 2025, Srinakharinwirot University (SWU) used a total of 200,559 gigajoules (GJ) of energy, of which 466 GJ came from low-carbon sources, namely solar photovoltaic (PV) electricity generated and used on campus. Low-carbon energy therefore made up about 0.23% of the University’s total energy use. The figures come from SWU’s monthly energy records on the SWU SDG Sustainability Web App dashboard and from the monitoring application of a smaller solar system.

Total energy used in 2025

SWU records the monthly electricity consumption of its two campuses, Prasarnmit Campus in Bangkok and Ongkharak Campus in Nakhon Nayok, on the SWU SDG Sustainability Web App dashboard. In 2025, the University used 55,710,830 kWh of electricity, equal to 200,559 GJ (1 kWh = 0.0036 GJ): 102,953 GJ at Prasarnmit Campus and 97,606 GJ at Ongkharak Campus. This total includes electricity purchased by the University and electricity generated by its own solar PV systems.

Figure 1. SWU SDG Sustainability Web App dashboard: total electricity consumption in 2025 (B.E. 2568) by campus and by month (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

The electricity figure for Ongkharak Campus is also published on the public electricity statistics page of the Sustainable Development Office, Office of the President, which reports 27,112,842.19 kWh for 2025 (B.E. 2568), the same figure used in the University total.

Figure 2. Public electricity statistics of SWU Ongkharak Campus, Sustainable Development Office, showing 27,112,842.19 kWh of electricity used in 2025 (B.E. 2568) (highlighted).

Source: Sustainable Development Office, Office of the President, SWU – Electricity statistics – https://sd.op.swu.ac.th/electricity_statistics

Energy used from low-carbon sources in 2025

SWU’s low-carbon energy comes from solar power, a renewable source. At Ongkharak Campus, solar PV systems on the Administration Building and the HRH Princess Maha Chakri Sirindhorn Medical Center generated 128,773.89 kWh (463.59 GJ) in 2025. Only 162.83 kWh of this was exported to the grid, so almost all of the solar electricity was used in University buildings. The Administration Building system supplied about 14% of the building’s electricity use over the year (38,879.99 kWh), and generation from the system at the Medical Center has been recorded since November 2025 (89,893.90 kWh in the last two months of the year).

Figure 3. SWU SDG Sustainability Web App dashboard: monthly electricity generated by solar PV systems at Ongkharak Campus in 2025 (B.E. 2568), by building, with electricity exported to the grid and the building’s actual electricity use (GJ).

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

The solar system at the University’s bioshop generated a further 721.27 kWh (2.60 GJ) in 2025, all of which was used on site, according to its inverter monitoring application.

Figure 4. Inverter monitoring application of the bioshop solar system: electricity generated in 2025, by month (total 721.27 kWh).

Source: Solar inverter monitoring application, bioshop solar system (screenshot taken October 2026)

Low-carbon energy use in 2025

Total energy used: 200,559 GJ (55,710,830 kWh of electricity).

Total energy used from low-carbon sources: 466 GJ (129,495.16 kWh of solar electricity: 463.59 GJ at Ongkharak Campus and 2.60 GJ at the bioshop).

Share of energy from low-carbon sources: about 0.23%.

These figures are tracked under the SWU Zero Carbon policy, announced on 13 December 2024, which commits the University to promote alternative energy such as solar cells and floating solar systems and to reduce electricity use by 5% each year. The energy data are published on the University’s online dashboard, so the evidence is publicly available.