Senegal’s home fuel reserves might be primarily used to produce electricity. Authorities count on that home gasoline infrastructure tasks will come on-line between 2025 and 2026, supplied there isn’t any delay. The monetization of these important vitality resources is at the foundation of the government’s new gas-to-power ambitions.
In this context, the global expertise group Wärtsilä performed in-depth studies that analyse the economic impression of the varied gas-to-power strategies available to Senegal. Two very different applied sciences are competing to satisfy the country’s gas-to-power ambitions: Combined-cycle gas turbines (CCGT) and Gas engines (ICE).
These research have revealed very important system price differences between the two primary gas-to-power technologies the country is currently contemplating. Contrary to prevailing beliefs, gasoline engines are in fact much better suited than combined cycle fuel turbines to harness energy from Senegal’s new gas resources cost-effectively, the examine reveals. Total cost differences between the 2 applied sciences might attain as much as 480 million USD until 2035 depending on scenarios.
Two competing and really totally different technologies
The state-of-the-art vitality combine fashions developed by Wärtsilä, which builds customised power eventualities to identify the fee optimal method to deliver new era capacity for a specific country, exhibits that ICE and CCGT technologies present significant value variations for the gas-to-power newbuild program working to 2035.
Although these two technologies are equally proven and reliable, they are very completely different when it comes to the profiles by which they will operate. CCGT is a know-how that has been developed for the interconnected European electrical energy markets, the place it could possibly operate at 90% load factor at all times. On the other hand, flexible 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 combine.
In explicit our study reveals that when working in an electricity community of limited dimension such as Senegal’s 1GW nationwide grid, relying on CCGTs to considerably increase the network capability could be extremely expensive in all possible scenarios.
Cost variations between the technologies are defined by a number of elements. First of all, scorching climates negatively impression the output of gas turbines more than it does that of gas engines.
Secondly, because of Senegal’s anticipated entry to cheap domestic fuel, the operating costs turn out to be much less impactful than the funding prices. In other phrases, as a outcome of low gas prices lower working costs, it’s financially sound for the country to depend on ICE power crops, that are inexpensive to build.
Technology modularity additionally plays a key position. Senegal is predicted to require an extra 60-80 MW of era capability every year to have the ability to meet the rising demand. This is way lower than the capability of typical CCGTs crops which averages 300-400 MW that have to be in-built one go, leading to pointless expenditure. Engine power crops, however, are modular, which means they can be constructed exactly as and when the country wants them, and additional extended when required.
เกจวัดแรงดันเครื่องกรองน้ำ at play are important. The model exhibits that If Senegal chooses to favour CCGT vegetation at the expense of ICE-gas, it’ll result in as much as 240 million dollars of extra cost for the system by 2035. The price distinction between the applied sciences may even improve to 350 million USD in favor of ICE technology if Senegal also chooses to construct new renewable energy capability throughout the next decade.
Risk-managing potential fuel infrastructure delays
The development of fuel infrastructure is a posh and prolonged endeavour. Program delays are not unusual, inflicting gasoline supply disruptions that may have an enormous financial impression on the operation of CCGT plants.
Nigeria is conscious of one thing about that. Only last year, significant gas provide points have caused shutdowns at a variety of the country’s largest fuel turbine energy vegetation. Because Gas generators operate on a continuous combustion process, they require a relentless provide of gasoline and a steady dispatched load to generate constant energy output. If the provision is disrupted, shutdowns happen, placing an excellent strain on the overall system. ICE-Gas crops on the opposite hand, are designed to regulate their operational profile over time and increase system flexibility. Because of their versatile operating profile, they were capable of keep a a lot greater stage of availability
The examine took a deep dive to analyse the monetary influence of two years delay in the gasoline infrastructure program. It demonstrates that if the country decides to take a position into gas engines, the cost of gas delay could be 550 million dollars, whereas a system dominated by CCGTs would lead to a staggering 770 million dollars in extra value.
Whichever method you look at it, new ICE-Gas generation capability will reduce the whole value of electricity in Senegal in all potential eventualities. If Senegal is to satisfy electrical energy demand progress in a cost-optimal means, no much less than 300 MW of new ICE-Gas capability might be required by 2026.
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