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Monday, November 25, 2024
Tlou Energy reports that gas has been flowing from the Lesedi 4 and Lesedi 6 gas wells. The gas flow has been surging with work ongoing to produce a more constant rate, required to facilitate generation of power.
The key issue has been coal fines or particles that have caused the downhole pump to block and have constrained the dewatering process. The Tlou operations team is fully focused on this issue at the present time. Once resolved, the aim is to maximize water drawdown to produce higher and more consistent gas flows over the coming months.
The 66kV power line connecting Lesedi to the Serowe substation is virtually complete and is designed to take up to 25MW of power. Some minor finishing works, such as the addition of switchgear at the Serowe substation, will be carried out prior to the line being energized. The power line is effectively under care and maintenance until Tlou is ready to bring it online.
The Lesedi substation is over 90% complete with the Serowe extension ready for commissioning. A 5MVA step-up transformer was delivered to the project site on 20 November 2024. This is a key component to finalize the substation. With the transformer now in place, work will continue onsite with completion anticipated before the end of the year.
The 5MVA transformer will facilitate around 5MW of generation. Further transformers will be added as the project grows with the substation designed for expansion up to 25MW.
Tlou has progressed discussions with a global power generation supplier to install a power generation facility at Lesedi using reciprocating 1,375 kW Cummins branded gas engines with GE generators. Should an agreement be put in place, the units will be delivered, installed and commissioned by the provider, who will also handle ongoing operations and maintenance. It is envisaged that power generators will be supplied and installed in phases, commensurate with gas production capacity. The lead time to get generators onsite is currently expected to be 6-8 weeks from order.
The proposed generators can take up to 220m3 of methane per hour with actual power generation output subject to various factors including the temperature and altitude.
The generator set includes a lower 20-foot container which houses a Cummins 1,375 kW engine and generator with an upper container including a radiator and the generator cooling system.
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