Senegal faces key technology choices in its seek for the optimal gas-to-power strategy

Senegal’s domestic gasoline reserves might be primarily used to provide electricity. เครื่องมือวัดความดัน count on that home fuel infrastructure tasks will come online between 2025 and 2026, provided there is no delay. The monetization of these significant energy assets is on the basis of the government’s new gas-to-power ambitions.
In this context, the global know-how group Wärtsilä carried out in-depth studies that analyse the economic impression of the varied gas-to-power strategies out there to Senegal. Two very different applied sciences are competing to meet the country’s gas-to-power ambitions: Combined-cycle gasoline turbines (CCGT) and Gas engines (ICE).
These research have revealed very important system cost differences between the two primary gas-to-power technologies the nation is at present contemplating. Contrary to prevailing beliefs, fuel engines are actually much better suited than combined cycle fuel generators to harness power from Senegal’s new gas sources cost-effectively, the research reveals. Total value differences between the 2 technologies could reach as much as 480 million USD till 2035 depending on eventualities.
Two competing and very different applied sciences
The state-of-the-art vitality mix fashions developed by Wärtsilä, which builds customised energy scenarios to determine the price optimum method to ship new era capability for a selected country, exhibits that ICE and CCGT technologies present important price variations for the gas-to-power newbuild program operating to 2035.
Although these two applied sciences are equally proven and reliable, they’re very totally different by way of the profiles during which they can operate. CCGT is a expertise that has been developed for the interconnected European electrical energy markets, where it could possibly function at 90% load issue at all times. On the other hand, versatile ICE technology can operate effectively in all operating profiles, and seamlessly adapt itself to another technology applied sciences that will make up the country’s power mix.
In explicit our research reveals that when operating in an electricity community of restricted size corresponding to Senegal’s 1GW nationwide grid, counting on CCGTs to considerably broaden the community capability would be extremely pricey in all potential situations.
Cost differences between the applied sciences are defined by numerous components. First of all, hot climates negatively impression the output of gasoline turbines greater than it does that of gasoline engines.
Secondly, because of Senegal’s anticipated entry to low-cost domestic gas, the operating costs turn out to be less impactful than the investment prices. In other phrases, as a outcome of low fuel prices lower working prices, it’s financially sound for the country to rely on ICE energy crops, which are less expensive to construct.
Technology modularity also performs a key function. Senegal is expected to require an extra 60-80 MW of era capacity annually to find a way to meet the increasing demand. This is far decrease than the capability of typical CCGTs plants which averages 300-400 MW that must be built in one go, leading to pointless expenditure. Engine energy plants, then again, are modular, which suggests they are often constructed precisely as and when the country wants them, and additional extended when required.
The numbers at play are important. The mannequin reveals that If Senegal chooses to favour CCGT crops at the expense of ICE-gas, it’s going to lead to as much as 240 million dollars of extra cost for the system by 2035. The price difference between the applied sciences may even enhance to 350 million USD in favor of ICE technology if Senegal also chooses to build new renewable energy capacity within the next decade.
Risk-managing potential fuel infrastructure delays
The development of gasoline infrastructure is a complex and prolonged endeavour. Program delays are not unusual, inflicting gasoline supply disruptions that can have a huge monetary impact on the operation of CCGT vegetation.
Nigeria is aware of one thing about that. Only last yr, vital gas supply issues have brought on shutdowns at a few of the country’s largest gasoline turbine power plants. Because Gas generators function on a continuous combustion process, they require a continuing supply of gas and a steady dispatched load to generate consistent power output. If the provision is disrupted, shutdowns happen, putting a great strain on the overall system. ICE-Gas vegetation then again, are designed to adjust their operational profile over time and increase system flexibility. Because of their flexible operating profile, they have been in a place to keep a a lot greater degree of availability
The research took a deep dive to analyse the financial impression of 2 years delay in the gas infrastructure program. It demonstrates that if the nation decides to take a position into gasoline engines, the price of gasoline delay would be 550 million dollars, whereas a system dominated by CCGTs would lead to a staggering 770 million dollars in extra value.
Whichever means you have a glance at it, new ICE-Gas generation capacity will decrease the whole price of electricity in Senegal in all potential situations. If Senegal is to fulfill electrical energy demand progress in a cost-optimal method, a minimum of 300 MW of new ICE-Gas capability shall be required by 2026.
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