| No. | ETGroup ECT | Competition |
|---|---|---|
| 1. | Wide and flexible offering in the 0-2500 kW range, extremely customizable | Very limited product offering, “any colour as long as its black” philosophy. |
| 2. | High speed design = Highest efficiency in small size-class, overall efficiencies in 50 – 65% range.(enthalpy drop to electrical output) | Low speed design = Low efficiency in the small sizes, efficiency in 35 – 45%. |
| 3. | Premium stainless steels used in flow path, unlimited corrosion life, long erosion life, superior containment performance. | Cast-iron, cast-steel and low-alloy carbon steels used, subject to corrosion during shut-downs, low erosion life, brittle Materials, offers only low performance. |
| 4. | Sophisticated & modern aerodynamic correct blading, optimized for each customer. | Out-dated circular arc rotor blade profiles, drilled passage or straight-line nozzles, “parts-bin” assemblies, no customization,low efficiency. |
| 5. | State-of-the-art “Blisk” rotors for maximum strength & safety,150% burst speed margin, high accuracy, single part per rotor. | Inserted blade rotors, <50% burst margin, low blade setting accuracy, 100+ parts per rotor. |
| 6. | Integral gearbox, eliminates 2 turbine bearings + 1 steam seal, eliminates high-speed coupling, minimum weight& foot-print, lowers system cost. | Separate gearbox requires two turbine bearings + 2 steam seals, high speed couplings create balance & alignment issues, very heavy and occupies large space, expensive. |
| 7. | Factory assembled & aligned unitary skid, small foot-print and weight, rubber mounts, no foundations or civil-works required, small & light enough to be manoeuvred by one person using a pallet trolley to final installation location. | Site erection & alignment required, very large and heavy, requires heavy-lift equipment and extensive foundation preparation at site. |
| 8. | Sophisticated & modern digital PLC controls, easy starting and operation, easy interface with plant DCS, Web-enable-able for remote monitoring. | Out-dated hydro-mechanical controls, no communication possible. |
| 9. | Excellent maintainability, minimum parts, standard tools, 4 hour assembly time. | Several days for major maintenance action, require heavy lift equipment and many special tools. |