Energy consumption in TongaThe most important figure in the energy balance of Tonga is the total consumption of
54.45 million kWhof electric energy per year. Per capita this is an average of 514 kWh.
Tonga can completely be self-sufficient with domestically produced energy. The total production of all electric energy producing facilities is 60 m kWh, also 111 percent of own requirements. The rest of the domestically produced energy is either exported into other countries or unused. Along with pure consumption, the production, imports and exports play an important role. Other energy sources, such as natural gas or crude oil are also used.
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|Own consumption||54.45 m kWh||513.58 kWh||11,744.38 kWh|
|Production||60.35 m kWh||569.23 kWh||12,198.66 kWh|
100.0% of the country's population (as of 2020) has access to electricity.
|total||162,900.00 t||1.55 t||14.52 t|
|› of which diesel + gasoline||171.00 m t||1,629.33 t||7,179.51 t|
Development of CO₂ emissions from 1960 to 2019 in million tons
See also: CO₂ equivalents by country
Production capacities per energy sourceThe given production capacities for electric energy have a theoretical value, which can only be obtained under ideal conditions. They are measuring the generatable amount of energy, that would be reached under permanent and full use of all capacities of all power plants.
In practice this isn't possible, because e.g. solar collectors are less efficient under clouds. Also wind- and water-power plants are not always operating under full load. All these values are only useful in relation to other energy sources or countries.
|Fossil fuels||227.76 m kWh||100,0 %||59,9 %||2,148.33 kWh||2.06 kWh|
|Nuclear power||0.00 kWh||0,0 %||19,5 %||0.00 kWh||0.67 kWh|
|Solar energy||0.00 kWh||0,0 %||3,2 %||0.00 kWh||0.11 kWh|
|Wind power||0.00 kWh||0,0 %||8,3 %||0.00 kWh||0.29 kWh|
|Water power||0.00 kWh||0,0 %||7,0 %||0.00 kWh||0.24 kWh|
|Tidal Power Plants||0.00 kWh||0,0 %||0,0 %||0.00 kWh||0.00 kWh|
|Geothermics||0.00 kWh||0,0 %||0,4 %||0.00 kWh||0.01 kWh|
|Biomass||0.00 kWh||0,0 %||1,7 %||0.00 kWh||0.06 kWh|
Usage of renewable energiesRenewable energy includes wind, solar, biomass and geothermal energy sources. This means all energy sources that renew themselves within a short time or are permanently available. Energy from hydropower is only partly a renewable energy. This is certainly the case with river or tidal power plants. Otherwise, numerous dams or reservoirs also produce mixed forms, e.g. by pumping water into their reservoirs at night and recovering energy from them during the day when there is an increased demand for electricity. Since it is not possible to clearly determine the amount of generated energy, all energy from hydropower is displayed separately.
In 2019, renewable energy accounted for around 1.8 percent of actual total consumption in Tonga. The following chart shows the percentage share from 1990 to 2019: