Client Hunter Roberts Construction Group

Location New York, USA

Sectors Construction

The challenge

Powering flood cleanup with the grid down

In October 2012, the Siphon Tunnel project, a $250m development to put a new water siphon in place between Brooklyn and Staten Island, was going well. Then Hurricane Sandy happened. The Category 1 storm slammed the project’s work site and breached its flood defences, filling the partially-excavated 460m tunnel with salt water, damaging equipment and power supply.

The financial loss was huge and growing every day. It was vital to secure the site as soon as possible to fix the damage and start work again. But with the local power station flooded, there was no grid power to do it. The team needed to find another way to power the cleanup – fast.


Project fact file

$250 m

Investment in the Siphon Tunnel project

3.9 MW

Continuous power to the site


Estimated monthly savings over two years

The solution

A complete natural gas power system 

We teamed up with Hunter Roberts Construction Group to design and deliver a complete alternative power source, including two 1,300 kW natural gas generators as prime power, a third as backup, along with all the related transformers and distribution equipment.


the aggreko difference

Responding to emergencies, fast.

The impact

Sending help fast and saving costs

Acting fast, we were able to get reliable power to the site as soon as the storm hit, delivering 3.9 MW of reliable emergency power. The system would go on to save the project around $125,000 a month over the next two years.


“Aggreko was great to work with. In the aftermath of Hurricane Sandy, their team was able to quickly design and install a power solution that helped us reduce operating costs and meet compliance issues.”

Hunter Roberts Construction Company

Tell us what you need

We’ll help you find what’s right for you