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The Maltese national electricity grid is an isolated one and is not connected to any other electrical network. Therefore, all the electrical energy that is required is generated in Malta. This is carried out by Enemalta Corporation (EMC).
At present EMC operates two Power Stations, which supply all the Electrical power needs of the Islands of Malta and Gozo. These stations with a total combined nominal installed capacity of 571MW, are interconnected together by means of the existing grid. Malta has no indigenous primary energy resources and therefore EMC relies entirely on imported fuels, mainly heavy fuel oil and light distillate.
Delimara Power Station
This station is situated in the south easterly part of the island and was first commissioned in 1992 and consist of the following:-
| Units |
Commissioned |
| 2 x 60MW Conventional Steam Blr/Tur Units |
1992 |
| 2 x 37MW Open Cycle Gas Turbines |
1994 |
1 x 110MW Combined-Cycle Plant.
2 x 37MW GTs, 2 x HRSG, 1 x 36MW |
1999 |
The total generation capacity of this station stands at 304MW. The steam units burn 1% sulphur fuel oil, while the gas turbines and the Combined Cycle, burn distillate fuel oil.
Marsa Power Station
This station is situated at the Marsa end of the Grand Harbour. The original station (‘A’ Station) was built underground beneath Jesuit Hill and was commissioned in 1953. The plant installed in this station consisted of 3 steam units with a nominal capacity of 5 MW each. These units were supplied under the Marshall Aid Programme.
Due to the increasing demand of the Maltese nation, this station was later expanded and final total capacity was 30 MW which was built up of 5 steam units each rated at 5 MW and a gas turbine of similar rating. The station was finally de-commissioned in 1993.
In 1966, the first two units at ‘B’ Station were commissioned. This station was later expanded in order to meet the electrical load and presently is made up of the following plant.
| Units |
Commissioned |
2 x 90 Ton/hr Steam Boilers*
2 x 10MW Steam Turbines |
1966 |
| 2 x 120 Ton/hr Steam Boilers |
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| 2 x 30MW Steam Turbines |
1970 |
1 x 130 Ton/hr Steam Boilers
1 x 30MW Steam Turbines** |
1982 |
1 x 130 Ton/hr Steam Boilers
1 x 30MW Steam Turbines**() |
1984 |
| 1 x 300 Ton/hr Steam Generator |
1985 |
| 1 x 30MW Steam Turbine**() |
1987 |
| 1 x 60MW Conventional Steam Blr/Tur unit***() |
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| 1 x 37MW Open Cycle Gas Turbine |
1990 |
* The steam generators were decommissioned in 1994 and 1999 respectively.
** The steam turbines are refurbished plants, which were first commissioned in 1952 at Palermo in Sicily.
*** The steam turbine is a refurbished plant, which was first commissioned in 1954 at Little Barford in the UK. In 1996, this unit was refurbished again to extend its lifetime for a further 15 years.
() These units were run on coal between their respective commissioning date and 1995 when coal firing was stopped. |
Total generation capacity of this station stands at 267MW. All the steam units presently burn 1% sulphur fuel oil and the gas turbine burns distillate fuel oil.
Other Power Stations
There were also two other power stations that produced electricity. These were the old power station at Floriana which was in operation between 1896 till 1960 and the power station at Corradino which operated between 1939 and 1992.
Load profile
The daily electricity demand for the Maltese Islands exhibits a profile that is typical of the Mediterranean area. Peak demand in winter is during the evening and is therefore predominantly domestic. In summer the peak demand occurs during the morning and therefore predominantly commercial and industrial.
Carbon dioxide emissions
The total carbon dioxide emission for 2004 was 1 145 744 tons from Marsa power station and 875 503 tons from Delimara Power Station (provisional figures).
The total carbon dioxide emission for 2006 for Marsa Power Station was 1,175,288 tonnes and 810,477 tonnes from Delimara Power Station. Total of 1,985,765 tonnes.
During 2006, 2,261,189MWh were generated at the power stations, hence 0.8782kgCO2 were emitted for every kWh generated.
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