GE Takes Order for its Largest, Most Efficient Gas Turbines (61%)

General Electric has announced it has entered into a $500 million contract with Excelon Corp. to build four combined-cycle high efficiency HA gas gas turbines which will be the most efficient in the United States, along with two steam turbines and six generators.

A press release from Excelon states:

“The HA turbines apply advanced materials from GE aircraft engines, incorporating single-crystal alloys and thermal barrier coatings to deliver longer parts life for lower lifecycle costs. This enables the turbines to operate at higher temperatures (over 2600 degrees F), increasing efficiency and further reducing ongoing maintenance costs.”

A Reuters article says that GE claims that these turbines can convert 61 per cent of gas to electricity and combined will add about 1000 megawatts of capacity.

  • Omega Z

    E-cats themselves can be scaled to about any size. Watts to Gigawatts. Their output isn’t an issue.
    The Businesses that GE & Siemens have purchased have expertise in 1 to 100 megawatt turbines of high efficiency. These are well suited for where the market will go. Buying these Companies gives Both instant expertise in this area.

    The Fuel requirements of the E-cat provides freedom to build power plants just about anywhere. No longer tethered as are conventional generating systems. They can be built at point of use.(City limits)

    As to smaller scale then 1 Megawatt, I agree that efficiencies take a beaten. However, Most if not all these issues should be mitigated by 3D printing technology. NASA has already shown this where a 6 month build can be reduced to a matter of weeks with major cost savings of 75%. Designs of large high efficiency systems should be possible at smaller scale using 3D technology.

    As to E-cats for individual home use, I see them providing base heat needs in winter months paired with a conventional system to cover peek demand. Even with high efficient conversion to electricity, they will not be cost/benefit usable. This has to do with E-cat characteristics & overall hardware costs. Energy is not cheap when most of it is wasted or dumped.

    However Industrial & commercial use will be of cost/benefit as will large high rise & office buildings with in a few years.

  • Omega Z

    New here I assume or don’t visit here often. In recent months-
    GE bought out a major manufacturer that builds smaller and more efficient steam turbines.
    Siemens has done the same.

  • interesting, but big and expensive high efficienbcy turbines are maybe not the best choice.
    LENR heat is cheap, and using expensive turbine, even if quite efficent is a waste.

    fairly efficient, but very cheap and robust microturbine (<1MW) can be more interesting.
    another problem is that LENR , even if hotter than nuclear reactors (300C-400C in PWR I think) are much less hot than gas, or even coal.

    LENr ask for a new compromise on turbine design, cheaper, smaller, cooler, yet fairly efficient… just fairly.