Googol PTAA10V-EG690 vs Liebherr D976
The Googol PTAA10V-EG690 and Liebherr D976 are both diesel generator engines in a similar power class. Both are rated at roughly 778 kVA. Displacement is 20.3 L versus 18 L. The table below compares their full specifications side by side.
| Specification | Googol PTAA10V-EG690 | Liebherr D976 |
|---|---|---|
| Headline rating | 775 kVA | 780 kVA |
| Standby (50 Hz) | 620 kWe | 624 kWe |
| Prime (50 Hz) | 560 kWe | 556.8 kWe |
| Standby (60 Hz) | — | — |
| Prime (60 Hz) | — | — |
| Displacement | 20.3 L | 18 L |
| Configuration | V10 | L6 |
| Cylinders | 10 | 6 |
| Rated speed | 1,500 RPM | 1,500 RPM |
| Fuel | Diesel | Diesel/HVO |
| Cooling | Air-Air | Liquid-Cooled |
| Emissions | China National Stage III / Unregulated | Euro Stage V / U.S. EPA Tier 2 |
| Dry weight | 1480 kg | — |
| Origin | China | Switzerland |
Choosing between Googol PTAA10V-EG690 and Liebherr D976
Use this comparison as an engineering shortlist, then confirm the complete generator package against load profile, voltage, 50/60 Hz frequency, duty class, emissions rules, cooling margin, altitude, ambient temperature, enclosure design, controller features, and alternator sizing. The Liebherr D976 has the higher headline kVA rating in this pair, but site conditions and duty cycle can still change the final recommendation.