At no upfront cost and for a competitive rental fee, we guarantee that our systems deliver 24/7 reliability and 100% peace of mind: O&M services, remote. The 1 MW Y.Cubeis a ready-to-install energy storage system – with everything included in a standard 20ft container. That includes batteries, inverter, HVAC, fire. Our contracts start with rental periods from weeks and are based on a regular weekly, monthly or annual fee. Terms can be easily adapted to fit your business. Here at Aggreko, we understand that every business in New Zealand has different needs and requirements - which can also change at the drop of a hat. Which.