Senegal’s home gasoline reserves shall be primarily used to provide electricity. Authorities expect that home gasoline infrastructure tasks will come on-line between 2025 and 2026, provided there is no delay. The monetization of these important power sources is on the basis of the government’s new gas-to-power ambitions.
In this context, the worldwide technology group Wärtsilä performed in-depth research that analyse the financial influence of the assorted gas-to-power methods obtainable to Senegal. Two very different applied sciences are competing to fulfill the country’s gas-to-power ambitions: Combined-cycle gas turbines (CCGT) and Gas engines (ICE).
These research have revealed very vital system price differences between the 2 primary gas-to-power applied sciences the nation is currently contemplating. Contrary to prevailing beliefs, gasoline engines are in fact a lot better suited than mixed cycle gas generators to harness energy from Senegal’s new gas sources cost-effectively, the examine reveals. Total cost variations between the two applied sciences could attain as much as 480 million USD until 2035 relying on scenarios.
Two competing and really completely different technologies

The state-of-the-art vitality combine fashions developed by Wärtsilä, which builds customised energy situations to determine the fee optimum approach to ship new generation capability for a selected nation, shows that ICE and CCGT technologies present important price variations for the gas-to-power newbuild program operating to 2035.
Although these two technologies are equally confirmed and reliable, they are very completely different by way of the profiles in which they will operate. CCGT is a expertise that has been developed for the interconnected European electrical energy markets, where it could function at 90% load factor at all times. On the opposite hand, flexible ICE expertise can function efficiently in all operating profiles, and seamlessly adapt itself to some other era technologies that can make up the country’s vitality mix.
In explicit our examine reveals that when working in an electrical energy network of limited measurement such as Senegal’s 1GW nationwide grid, counting on CCGTs to considerably increase the community capability would be extremely costly in all attainable scenarios.
Cost variations between the technologies are explained by numerous components. First of all, hot climates negatively impact the output of fuel turbines greater than it does that of fuel engines.
Secondly, thanks to Senegal’s anticipated access to low cost home gas, the working costs turn into less impactful than the investment prices. In different phrases, as a result of low gas costs lower working costs, it is financially sound for the country to rely on ICE power plants, which are inexpensive to build.
Technology modularity also plays a key function. Senegal is anticipated to require an additional 60-80 MW of technology capacity each year to have the ability to meet the increasing demand. This is far decrease than the capability of typical CCGTs crops which averages 300-400 MW that should be inbuilt one go, leading to pointless expenditure. Engine power vegetation, then again, are modular, which implies they are often constructed precisely as and when the country needs them, and further extended when required.
เพรสเชอร์เกจ at play are important. The mannequin shows that If Senegal chooses to favour CCGT plants on the expense of ICE-gas, it will result in as much as 240 million dollars of extra value for the system by 2035. The price difference between the applied sciences can even improve to 350 million USD in favor of ICE know-how if Senegal also chooses to construct new renewable power capacity within the next decade.
Risk-managing potential gas infrastructure delays

The improvement of gas infrastructure is a posh and lengthy endeavour. Program delays are not unusual, inflicting gas supply disruptions that will have a huge monetary influence on the operation of CCGT vegetation.
Nigeria is aware of one thing about that. Only final 12 months, important fuel provide points have brought on shutdowns at a variety of the country’s largest gasoline turbine energy vegetation. Because Gas generators operate on a continuous combustion process, they require a continuing provide of gasoline and a stable dispatched load to generate constant energy output. If เพรสเชอร์เกจ is disrupted, shutdowns occur, putting a great strain on the overall system. ICE-Gas vegetation however, are designed to regulate their operational profile over time and increase system flexibility. Because of diaphragm seal operating profile, they have been able to maintain a a lot greater level of availability

The study took a deep dive to analyse the financial influence of 2 years delay in the gas infrastructure program. It demonstrates that if the country decides to take a position into fuel engines, the value of gasoline delay could be 550 million dollars, whereas a system dominated by CCGTs would result in a staggering 770 million dollars in additional value.
Whichever way you have a look at it, new ICE-Gas generation capacity will decrease the total cost of electrical energy in Senegal in all attainable situations. If Senegal is to fulfill electricity demand progress in a cost-optimal method, at least 300 MW of latest ICE-Gas capacity shall be required by 2026.