Genloop buys Siemens and Westinghouse 501F gas turbines and the combined cycle plants built around them as principal, and handles the removal.
The 501F is a heavy-frame F-class gas turbine that Westinghouse introduced in 1988 with Mitsubishi as its development partner. Siemens bought the business in 1998 and now calls the engine the SGT6-5000F. Ratings grew from about 150 MW on the first units to 200 MW by 2004 and up to 260 MW today. It turns at 3,600 rpm and serves 60 Hz grids.
Two 501Fs of the same year can be far apart in price. These are the reasons.
FC, FD, FD2, FD3 and the later versions differ in rating and in hardware. A unit ordered in 1994 at about 170 MW and one ordered in 2004 at 200 MW are priced as different machines.
Equivalent hours and equivalent starts since the last hot gas path inspection, not total hours. The firms that service the 501F quote hot gas path intervals of 25,000 to 32,000 equivalent hours, depending on the hardware fitted.
Mitsubishi recommends a comprehensive rotor inspection at 100,000 hours or 12 years, and Siemens runs its own inspection to qualify a rotor beyond 100,000 hours. A buyer asks where your rotor stands against that.
The 501F Users Group has documented torque tube, exhaust cylinder and compressor diaphragm issues on the earlier versions. A buyer asks which of the fixes your unit has had.
Siemens, Mitsubishi Power, PSM and several independent shops all supply parts and repairs for the 501F. A frame with that much support behind it is easier to place.
Units were delivered on Westinghouse WDPF or Teleperm XP controls, and many have since moved to T3000 or Ovation. The controls, the generator, the step-up transformer and, in combined cycle, the HRSG and steam turbine are priced with the unit.
A new F-class machine ordered today arrives years from now. An installed 501F that can be moved does not wait in that queue.
Blocks relocated and rebuilt where a new plant would take years to deliver.
Large baseload for sites whose load arrives before the grid connection does.
Firm capacity for systems that are short of it before new generation arrives.
The Americas, Saudi Arabia, Korea, Taiwan, the Philippines and about half of Japan run at 60 Hz.
The short answers. The detail is in the contract, and in the call that comes before it.
It depends on which version it is, where it sits in its maintenance cycle, the state of the rotor, which fleet modifications have been done, and whether it sells with the plant around it. No public database records what used turbines actually sell for, so advertised prices are asking prices. Genloop makes a firm offer after its own engineers have inspected the unit.
Yes. W501F, 501F and SGT6-5000F are names for the same engine family. Westinghouse introduced it in 1988, and Siemens renamed it after buying the business in 1998. Genloop buys all of them.
Yes. Genloop buys 501F units on their own, as complete generating sets, and as combined cycle blocks with the HRSG, steam turbine, generators and transformers, bought whole and relocated whole.
Yes. Genloop buys units that are running, idle or mothballed. A unit that has been mothballed for several years is looked at case by case.
No. The 501F turns at 3,600 rpm and makes 60 Hz, and it cannot be economically converted. Its buyers are in 60 Hz markets: the Americas, Saudi Arabia, Korea, Taiwan, the Philippines and about half of Japan.
Genloop does. Dismantling, export compliance and transport are Genloop’s scope, insured throughout, and written into the same contract as the purchase. The site is handed back on the schedule the contract sets.
No. Genloop buys as principal and takes title, so there is no fee, no marketing period and no waiting for a buyer to appear.
Every enquiry is read by the people who inspect, value and buy the equipment, and answered directly. Owners rarely have everything; send what exists and Genloop fills the gaps on site.
Version (FC, FD, FD2, FD3 or later), serial number, fuel, and what is included: generator, transformer, HRSG, steam turbine, balance of plant.
Equivalent hours and starts, trips, and the duty the unit ran: base load, cycling, peaking.
The last combustor, hot gas path and major inspections, with dates and open findings. Gaps are normal; say where they are.
Rotor hours, any rotor inspection or replacement, and which fleet modifications and upgrades have been done.
The window in which the equipment must be gone, crane and road access, and any export or permit requirements.
Who owns the equipment, and what has to be released at closing.