The Cape Coast Community Group aims to raise awareness and encourage community preparedness and resilience during or after an earthquake or tsunami.
Committee member Irene O'Connell said the generator "will be equally important should extreme weather events result in flooding or inundation".
The group believes it is important the community is as prepared as possible and that individuals, neighbours and families know how to respond in the event of a natural disaster.
"We have great resources, such as our local Volunteer Fire Brigade and Hawke's Bay Emergency Management, but their resources will be stretched in such an emergency.
"Therefore, we need to consider the scenario where we may have to take responsibility for ourselves and family if required," O'Connell said.