As the world shifts from carbon based energy production so does the reliability focus on existing and new green technology. In the hydraulic energy production space, there is renewed focus on ISO and CEATI standards to establish balance quality and operating vibration amplitude limits. Additional stresses are placed on assets with expanding operation envelopes, requiring generators to operate anywhere from synchronous condensing to maximum load. This presentation will review experiences with creating a return-to-service test plan based on ISO 20816-5 (limits) and ISO-21940 (balance quality) for a full operating range. Experiences with mechanical and load dependent (electrical and thermal forces) balancing options for a full operating range will also be discussed.