Senegal faces key expertise selections in its seek for the optimal gas-to-power technique

Senegal’s domestic gas reserves shall be mainly used to supply electrical energy. Authorities anticipate that domestic gasoline infrastructure initiatives will come online between 2025 and 2026, supplied there is no delay. The monetization of these significant energy resources is on the foundation of the government’s new gas-to-power ambitions.
In this context, the global expertise group Wärtsilä conducted in-depth research that analyse the economic impact of the varied gas-to-power methods obtainable to Senegal. Two very completely different applied sciences are competing to fulfill the country’s gas-to-power ambitions: Combined-cycle fuel generators (CCGT) and Gas engines (ICE).
These research have revealed very vital system cost variations between the two major gas-to-power technologies the country is currently contemplating. Contrary to prevailing beliefs, gas engines are in reality a lot better suited than combined cycle gasoline turbines to harness energy from Senegal’s new gasoline resources cost-effectively, the examine reveals. Total price differences between the two applied sciences may reach as much as 480 million USD until 2035 depending on scenarios.
Two competing and very completely different applied sciences
The state-of-the-art power combine models developed by Wärtsilä, which builds customised energy eventualities to establish the cost optimum approach to ship new era capability for a specific country, exhibits that ICE and CCGT applied sciences current vital value variations for the gas-to-power newbuild program running to 2035.
Although these two technologies are equally proven and reliable, they are very totally different when it comes to the profiles during which they’ll operate. CCGT is a technology that has been developed for the interconnected European electricity markets, the place it can operate 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 generation technologies that will make up the country’s energy mix.
In explicit our examine reveals that when working in an electricity community of restricted dimension such as Senegal’s 1GW nationwide grid, relying on CCGTs to significantly broaden the community capability could be extraordinarily expensive in all possible scenarios.
Cost variations between the applied sciences are explained by a number of components. First of all, hot climates negatively impression the output of fuel generators greater than it does that of gas engines.
Secondly, because of Senegal’s anticipated access to low-cost domestic gas, the working prices become much less impactful than the investment prices. In other words, because low gas prices lower operating costs, it’s financially sound for the nation to depend on ICE power vegetation, that are inexpensive to build.
Technology modularity also performs a key function. Senegal is anticipated to require an additional 60-80 MW of technology capacity every year to be able to meet the increasing demand. This is far lower than the capability of typical CCGTs crops which averages 300-400 MW that should be inbuilt one go, leading to unnecessary expenditure. Engine energy plants, however, are modular, which suggests they are often built exactly as and when the country wants them, and further extended when required.
The numbers at play are important. The mannequin exhibits that If Senegal chooses to favour CCGT plants at the expense of ICE-gas, it’ll result in as much as 240 million dollars of extra cost for the system by 2035. เกจวัดแรงดันลมคือ between the technologies may even improve to 350 million USD in favor of ICE expertise if Senegal additionally chooses to construct new renewable vitality capability within the next decade.
Risk-managing potential gas infrastructure delays
The growth of fuel infrastructure is a fancy and lengthy endeavour. Program delays usually are not uncommon, inflicting gas provide disruptions that can have an enormous monetary impact on the operation of CCGT plants.
Nigeria is conscious of one thing about that. Only last 12 months, important gas supply points have brought on shutdowns at some of the country’s largest fuel turbine energy crops. Because Gas turbines operate on a continuous combustion process, they require a constant supply of gas and a stable dispatched load to generate constant power output. If the supply is disrupted, shutdowns happen, placing a fantastic pressure on the general system. ICE-Gas plants then again, are designed to regulate their operational profile over time and improve system flexibility. Because of their versatile working profile, they had been capable of maintain a a lot larger degree of availability
The study took a deep dive to analyse the financial impact of 2 years delay in the fuel infrastructure program. It demonstrates that if the nation decides to take a position into gas engines, the value of gasoline delay could be 550 million dollars, whereas a system dominated by CCGTs would lead to a staggering 770 million dollars in further price.
Whichever method you have a glance at it, new ICE-Gas technology capability will reduce the total value of electrical energy in Senegal in all attainable eventualities. If Senegal is to meet electrical energy demand progress in a cost-optimal method, a minimum of 300 MW of recent ICE-Gas capacity will be required by 2026.
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