Senegal faces key know-how choices in its seek for the optimal gas-to-power technique

Senegal’s domestic gas reserves might be mainly used to produce electricity. Authorities expect that domestic fuel infrastructure projects will come on-line between 2025 and 2026, offered there is no delay. The monetization of those important energy assets is at the basis of the government’s new gas-to-power ambitions.
In this context, the worldwide expertise group Wärtsilä performed in-depth research that analyse the financial influence of the assorted gas-to-power strategies out there to Senegal. Two very completely different technologies are competing to fulfill the country’s gas-to-power ambitions: Combined-cycle fuel generators (CCGT) and Gas engines (ICE).
These studies have revealed very vital system value differences between the two main gas-to-power applied sciences the country is currently contemplating. Contrary to prevailing beliefs, fuel engines are actually a lot better suited than combined cycle gasoline turbines to harness power from Senegal’s new fuel sources cost-effectively, the study reveals. Total cost differences between the 2 technologies could attain as much as 480 million USD until 2035 depending on eventualities.
Two competing and very different applied sciences
The state-of-the-art power mix models developed by Wärtsilä, which builds customised power situations to determine the price optimum method to deliver new era capacity for a specific country, reveals that ICE and CCGT applied sciences current significant price differences for the gas-to-power newbuild program working to 2035.
Although these two technologies are equally proven and dependable, they are very different when it comes to the profiles during which they’ll operate. CCGT is a know-how that has been developed for the interconnected European electricity markets, where it may possibly operate at 90% load factor at all times. On the opposite hand, versatile ICE expertise can function efficiently in all working profiles, and seamlessly adapt itself to some other era technologies that will make up the country’s vitality mix.
In explicit our research reveals that when working in an electricity community of restricted size such as Senegal’s 1GW national grid, relying on CCGTs to considerably increase the network capability could be extremely costly in all potential situations.
Cost differences between the applied sciences are explained by numerous elements. First of all, scorching climates negatively influence the output of gas turbines greater than it does that of fuel engines.
Secondly, thanks to Senegal’s anticipated access to low-cost domestic gasoline, the operating costs turn into much less impactful than the funding costs. In other words, as a outcome of low gasoline costs lower operating prices, it’s financially sound for the country to depend on ICE power plants, which are cheaper to build.
Technology modularity also plays a key function. Senegal is predicted to require an extra 60-80 MW of technology capacity every year to have the flexibility to meet the increasing demand. This is much decrease than the capability of typical CCGTs crops which averages 300-400 MW that have to be in-built one go, leading to unnecessary expenditure. Engine power vegetation, however, are modular, which means they can be built exactly as and when the country wants them, and further prolonged when required.
The numbers at play are vital. The model shows that If Senegal chooses to favour CCGT plants on the expense of ICE-gas, it’ll result in as much as 240 million dollars of additional cost for the system by 2035. The price difference between the technologies can even increase to 350 million USD in favor of ICE know-how if Senegal additionally chooses to construct new renewable vitality capability within the subsequent decade.
Risk-managing potential gasoline infrastructure delays
The growth of gasoline infrastructure is a posh and lengthy endeavour. Program delays aren’t uncommon, causing gas supply disruptions that may have a huge monetary impact on the operation of CCGT vegetation.
Nigeria is conscious of one thing about that. Only last yr, important gas supply issues have brought on shutdowns at a few of the country’s largest gasoline turbine power plants. Because Gas turbines function on a steady combustion course of, they require a continuing provide of gasoline and a stable dispatched load to generate constant energy output. If the provision is disrupted, shutdowns occur, putting a fantastic pressure on the overall system. ICE-Gas plants however, are designed to adjust their operational profile over time and enhance system flexibility. Because of their flexible working profile, they have been in a place to maintain a much higher level of availability
The study took a deep dive to analyse the financial impact of two years delay within the gas 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 additional price.
Whichever means เกจ์วัดแรงดัน have a glance at it, new ICE-Gas technology capacity will decrease the whole value of electrical energy in Senegal in all attainable eventualities. If Senegal is to fulfill electrical energy demand growth in a cost-optimal way, no less than 300 MW of new ICE-Gas capacity might be required by 2026.
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