Choosing the correct generator comes down to a variety of factors, for example, the generator’s size, where it will be installed, the surrounding environment, and the site’s requirements in terms of noise, security, and weather protection.
Common options include open frame, canopied, and containerised standby generators. Many, particularly enclosed options, can be installed outdoors as long as they are designed for the environment and meet relevant safety and regulatory requirements.
Open Frame Generators
Open frame standby generators have all the components mounted on a supporting frame, without a protective outer enclosure. They are typically suited for applications where the generator is housed in a suitable plant room or in other purpose-built designed environments.
Even with an open frame design, you must still consider ventilation, exhaust discharge, and safe access.
Canopied Or Enclosed Generators
Canopied standby generators are fitted with an enclosure to protect the key components from external environmental conditions. Depending on the specification, the canopy can also incorporate acoustic insulation to reduce operating noise and provide additional security.
Enclosed generators are most often used outdoors, although the level of weather and noise protection can vary significantly between models.
Containerised Generators
Containerised standby generators tend to be larger systems housed within a robust enclosure designed for commercial or industrial applications. The enclosure can accommodate the generator, control equipment, ventilation, exhaust arrangements and, where specified, fuel systems and acoustic treatment.
Containerised solutions are typically used where substantial power capacity, enhanced security or specialist environmental and noise-control measures are required.
Factors To Consider When Installing Generators Outside
Important considerations include stable foundations, adequate ventilation and cooling airflow, safe exhaust discharge, suitable electrical connections, fuel storage, noise levels, security and access for maintenance.
The installation must also account for the surrounding buildings, neighbouring properties and applicable planning, environmental and safety requirements. A weatherproof canopy alone does not guarantee suitability for every location or exposure condition.