Senegal faces key expertise decisions in its search for the optimal gas-to-power strategy

Senegal’s home fuel reserves shall be mainly used to produce electrical energy. Authorities expect that home gasoline infrastructure projects will come online between 2025 and 2026, supplied there isn’t any delay. The monetization of these significant vitality sources is on the basis of the government’s new gas-to-power ambitions.
In this context, the global technology group Wärtsilä conducted in-depth research that analyse the financial impression of the varied gas-to-power methods out there to Senegal. Two very different technologies are competing to meet the country’s gas-to-power ambitions: Combined-cycle gasoline generators (CCGT) and Gas engines (ICE).
These studies have revealed very significant system price variations between the 2 main gas-to-power technologies the country is at present contemplating. Contrary to prevailing beliefs, gasoline engines are in reality a lot better suited than combined cycle gasoline turbines to harness power from Senegal’s new fuel resources cost-effectively, the study reveals. Total cost differences between the 2 applied sciences might reach as a lot as 480 million USD till 2035 depending on eventualities.
Two competing and really totally different applied sciences
The state-of-the-art power combine fashions developed by Wärtsilä, which builds customised power scenarios to establish the cost optimal way to ship new generation capacity for a specific country, reveals that ICE and CCGT applied sciences current vital value differences for the gas-to-power newbuild program operating to 2035.
Although these two applied sciences are equally confirmed and reliable, they’re very different when it comes to the profiles in which they can operate. CCGT is a expertise that has been developed for the interconnected European electrical energy markets, the place it could possibly function at 90% load factor at all times. On the other hand, flexible ICE know-how can operate efficiently in all working profiles, and seamlessly adapt itself to any other era applied sciences that may make up the country’s energy combine.
In specific our research reveals that when working in an electrical energy network of restricted measurement such as Senegal’s 1GW nationwide grid, counting on CCGTs to significantly increase the network capability would be extremely expensive in all attainable eventualities.
Cost variations between the technologies are defined by a number of elements. First of all, sizzling climates negatively influence the output of gasoline generators greater than it does that of gasoline engines.
Secondly, thanks to Senegal’s anticipated access to low-cost home gas, the working costs become much less impactful than the investment costs. In other words, as a end result of low gas costs decrease working prices, it is financially sound for the country to depend on ICE energy plants, that are cheaper to construct.
Technology modularity additionally plays a key position. Senegal is anticipated to require an additional 60-80 MW of technology capacity every year to have the power to meet the rising demand. This is much lower than the capacity of typical CCGTs vegetation which averages 300-400 MW that must be inbuilt one go, leading to unnecessary expenditure. Engine energy plants, on the opposite hand, are modular, which means they can be constructed precisely as and when the country needs them, and further prolonged when required.
The numbers at play are significant. The model exhibits that If Senegal chooses to favour CCGT plants on the expense of ICE-gas, it will lead to as a lot as 240 million dollars of extra price for the system by 2035. The cost difference between the technologies can even enhance to 350 million USD in favor of ICE technology if Senegal also chooses to build new renewable power capability within the next decade.
Risk-managing potential fuel infrastructure delays
The growth of gasoline infrastructure is a complex and prolonged endeavour. Program delays are not unusual, inflicting gasoline provide disruptions that may have a huge financial impression on the operation of CCGT crops.
Nigeria is conscious of one thing about that. Only last year, important gas provide issues have caused shutdowns at a few of the country’s largest gas turbine power crops. Because Gas turbines operate on a steady combustion course of, they require a relentless supply of gasoline and a secure dispatched load to generate constant power output. If the provision is disrupted, shutdowns happen, putting a fantastic pressure on the general system. ICE-Gas vegetation however, are designed to adjust their operational profile over time and enhance system flexibility. Because of their versatile working profile, they have been able to keep a a lot larger degree of availability
The examine took a deep dive to analyse the financial impression of two years delay in the gas infrastructure program. It demonstrates that if the nation decides to speculate into gasoline engines, the value of fuel delay could be 550 million dollars, whereas a system dominated by CCGTs would lead to a staggering 770 million dollars in further price.
Whichever means เกจวัดแรงดันลม have a glance at it, new ICE-Gas generation capacity will reduce the whole price of electrical energy in Senegal in all potential scenarios. If Senegal is to meet electrical energy demand progress in a cost-optimal method, at least 300 MW of recent ICE-Gas capability will be required by 2026.

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