Urban Rigger


An efficient, economical, and above all, environmental responsible and sustainable solution.

The floating nature of URBAN RIGGER provides the option to utilize the surrounding water as a free and clean heating source.

Using the seawater as a natural source of heat has a number of advantages:
– The heat transfer rate from water is higher than using the ground as a heat source.
– The water is in close contact with the entire pipe at all times, enhancing its efficiency.
– The flow/circulation of water provides constant energy replacement.

A cold-water anti-freeze mix is pumped through a series of energy absorbing, non-corrosive hydro pex pipes in the base slab of the hull on the URBAN RIGGER. As heat naturally flows from warmer to cooler places, the anti-freeze mix circulating the array is constantly warmed by the sea’s low-grade heat.

During the summer months the harbor water fluctuates around 18-21°C, and the URBAN RIGGER facility sends heated water through 1700 meters of hydro pex pipes to the apartments, where the off-grid-connected 17 kW-capacity heat pump boost temperatures to between 40-65°C, for heating and warm water, through the system for floor heating and utility water.

During the winter months, when seawater temperatures dip as low as 2°C, the heat exchanger boosts water temperatures up to 65°C, which is the perfect water temperature level that each apartment requires for comfort throughout the winter seasons.

Hydro Source Heating

The 17-kW capacity heat pump combined with a 7.5 kW Hanwha Q-cells PV panel solution on the roof creates a sustainable and cost-effective heating solution on the URBAN RIGGER. 17 kW of heating created from just 4 kW of electricity whilst reducing emissions by 81% compared to conventional heating using natural gas, grid electricity, or oil as a heating source.

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