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

Senegal’s home gas reserves shall be mainly used to provide electricity. Authorities expect that home gasoline infrastructure projects will come on-line between 2025 and 2026, provided there is no delay. The monetization of those important energy sources is at the basis of the government’s new gas-to-power ambitions.
In this context, the global know-how group Wärtsilä carried out in-depth studies that analyse the financial impact of the various gas-to-power strategies out there to Senegal. Two very totally different technologies are competing to satisfy the country’s gas-to-power ambitions: Combined-cycle gasoline generators (CCGT) and Gas engines (ICE).
These studies have revealed very vital system value variations between the two major gas-to-power technologies the nation is presently considering. Contrary to prevailing beliefs, gas engines are in fact a lot better suited than mixed cycle gas generators to harness power from Senegal’s new gas resources cost-effectively, the examine reveals. Total price differences between the two technologies may attain as much as 480 million USD till 2035 relying on situations.
Two competing and really completely different applied sciences
The state-of-the-art power mix models developed by Wärtsilä, which builds customised energy eventualities to establish the fee optimum approach to ship new technology capability for a particular nation, exhibits that ICE and CCGT technologies current important price variations for the gas-to-power newbuild program operating to 2035.
Although these two applied sciences are equally confirmed and dependable, they are very totally different in phrases of the profiles by which they will operate. CCGT is a know-how that has been developed for the interconnected European electrical energy markets, where it could possibly perform at 90% load factor at all times. On the opposite hand, flexible ICE technology can function effectively in all operating profiles, and seamlessly adapt itself to some other technology applied sciences that can make up the country’s power mix.
In particular our study reveals that when operating in an electricity network of restricted dimension such as Senegal’s 1GW nationwide grid, relying on CCGTs to significantly broaden the network capability could be extremely costly in all attainable situations.
pressure gauge ราคา between the applied sciences are explained by numerous factors. First of all, scorching climates negatively impact the output of fuel generators greater than it does that of fuel engines.
Secondly, thanks to Senegal’s anticipated access to low cost home gasoline, the operating costs turn into less impactful than the investment costs. In different phrases, as a result of low gasoline prices lower working prices, it is financially sound for the nation to depend on ICE power vegetation, which are cheaper to construct.
differential pressure gauge ราคา plays a key position. Senegal is anticipated to require an extra 60-80 MW of generation capacity every year to have the flexibility to meet the increasing demand. This is way lower than the capability of typical CCGTs crops which averages 300-400 MW that have to be built in one go, resulting in unnecessary expenditure. Engine energy crops, on the opposite hand, are modular, which suggests they are often built exactly as and when the nation needs them, and additional prolonged when required.
The numbers at play are significant. The mannequin reveals that If Senegal chooses to favour CCGT plants on the expense of ICE-gas, it’ll lead to as much as 240 million dollars of extra value for the system by 2035. The price distinction between the technologies may even increase to 350 million USD in favor of ICE technology if Senegal also chooses to build new renewable power capacity inside the next decade.
Risk-managing potential gas infrastructure delays
The development of gasoline infrastructure is a complex and prolonged endeavour. Program delays usually are not unusual, causing gasoline provide disruptions that will have an enormous financial impression on the operation of CCGT vegetation.
Nigeria is aware of one thing about that. Only final year, significant gasoline supply points have caused shutdowns at some of the country’s largest gasoline turbine power vegetation. Because Gas turbines operate on a continuous combustion process, they require a relentless supply of gas and a stable dispatched load to generate constant power output. If the provision is disrupted, shutdowns occur, putting a fantastic pressure on the overall system. ICE-Gas crops then again, are designed to adjust their operational profile over time and improve system flexibility. Because of their versatile operating profile, they had been capable of preserve a a lot higher degree of availability
The examine took a deep dive to analyse the financial impact of 2 years delay in the gasoline infrastructure program. It demonstrates that if the country decides to speculate into fuel engines, the value of gas 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 you have a look at it, new ICE-Gas technology capability will decrease the entire value of electricity in Senegal in all possible situations. If Senegal is to meet electrical energy demand growth in a cost-optimal way, no much less than 300 MW of latest ICE-Gas capacity shall be required by 2026.
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