Senegal’s domestic gas reserves might be primarily used to supply electricity. Authorities count on that home gas infrastructure initiatives will come on-line between 2025 and 2026, provided there is not any delay. The monetization of these vital power sources is on the foundation of the government’s new gas-to-power ambitions.
In this context, the worldwide technology group Wärtsilä carried out in-depth research 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 studies have revealed very vital system price differences between the 2 major gas-to-power applied sciences the nation is presently contemplating. Contrary to prevailing beliefs, fuel engines are in reality significantly better suited than combined cycle gasoline generators to harness energy from Senegal’s new fuel resources cost-effectively, the examine reveals. Total price differences between the two technologies might attain as much as 480 million USD till 2035 relying on eventualities.
Two competing and very different technologies
The state-of-the-art vitality mix models developed by Wärtsilä, which builds customised energy eventualities to establish the fee optimum way to ship new technology capability for a particular country, shows that ICE and CCGT applied sciences present vital value differences for the gas-to-power newbuild program working to 2035.
Although these two technologies are equally proven and reliable, they are very different when it comes to the profiles in which they’ll operate. CCGT is a expertise that has been developed for the interconnected European electrical energy markets, the place it could perform at 90% load issue always. On the opposite hand, flexible ICE expertise can operate effectively in all operating profiles, and seamlessly adapt itself to some other technology technologies that will make up the country’s power combine.
In explicit our study reveals that when operating in an electricity community of restricted measurement such as Senegal’s 1GW national grid, relying on CCGTs to considerably increase the community capacity could be extraordinarily costly in all possible situations.
Cost variations between the technologies are defined by a selection of factors. First of all, sizzling climates negatively impression the output of gas turbines greater than it does that of gas engines.
Secondly, due to Senegal’s anticipated entry to low cost home fuel, the operating costs turn into much less impactful than the investment costs. In other phrases, as a end result of low gasoline prices decrease working prices, it is financially sound for the country to rely on ICE power vegetation, which are inexpensive to construct.
Technology modularity also performs a key position. ตัววัดแรงดันน้ำมัน is expected to require an extra 60-80 MW of technology capacity annually to have the flexibility to meet the increasing demand. This is way lower than the capacity of typical CCGTs crops which averages 300-400 MW that must be in-built one go, resulting in pointless expenditure. Engine power plants, then again, are modular, which implies they are often built precisely as and when the nation needs them, and further extended when required.
The numbers at play are important. The mannequin exhibits that If Senegal chooses to favour CCGT crops on the expense of ICE-gas, it’ll lead to as much as 240 million dollars of additional price for the system by 2035. The value difference between the applied sciences may even enhance to 350 million USD in favor of ICE technology if Senegal also chooses to construct new renewable energy capability within the next decade.
Risk-managing potential fuel infrastructure delays
The development of gas infrastructure is a fancy and prolonged endeavour. Program delays usually are not uncommon, inflicting gasoline supply disruptions that will have a huge financial impact on the operation of CCGT vegetation.
Nigeria is conscious of one thing about that. Only final yr, vital fuel supply points have triggered shutdowns at some of the country’s largest fuel turbine energy vegetation. Because Gas turbines operate on a steady combustion process, they require a relentless supply of gasoline and a steady dispatched load to generate consistent power output. If the provision is disrupted, shutdowns happen, placing a great strain on the general system. ICE-Gas plants on the other hand, are designed to regulate their operational profile over time and improve system flexibility. Because of their flexible operating profile, they have been able to preserve a much greater degree of availability
The research took a deep dive to analyse the financial impression of two years delay within the gas infrastructure program. It demonstrates that if the country decides to speculate into fuel 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 price.
Whichever way you look at it, new ICE-Gas technology capacity will decrease the whole price of electricity in Senegal in all possible situations. If Senegal is to meet electricity demand progress in a cost-optimal way, a minimum of 300 MW of new ICE-Gas capability might be required by 2026.
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