The development of a Seawater District Cooling (SDC) system, also known as Seawater Air-conditioning (SWAC), can be a win-win process for all parties involved. The SDC system distributes cold water from a central cooling plant to locations with a high cooling demand like hotels, hospitals, airports and Ocean Ecopark businesses.
SDC has serious benefits for the environment, customers, energy infrastructure and economy.
Building a district cooling system represents plenty of positive impacts on the environment. The main impacts are:
- Considerably reduced energy consumption (up to 90%)
- Significantly less CO2 emissions and decreased emissions of ozone-depleting refrigerants
District cooling is an alternative to conventional air conditioning that helps to reduce energy consumption and costs to the airport customers. Some of the advantages include:
- Elimination of on-site chiller maintenance and operation. The system eliminates the need for chillers, cooling towers, pumps and other individual systems
- Improved architectural design flexibility due to the lack of chillers and (noisy) condensers
- A renewable energy source which fits perfectly into Corporate Social Responsibility
An important benefit is the significant amount of infrastructure that will be added to the community. This infrastructure will give the airport a competitive edge in attracting new development over other locations who do not have district energy systems. Some of the key benefits involved in SDC implementation are:
- Peak power electric demand reduction. depending on the design SDC can reduces power demand in new development by 50% to 90%
- Reduction in government power sector costs. SDC reduces the capital investment required for additional power generation, transmission and distribution infrastructure
- Enabling other deep seawater industries, such as agriculture and aquaculture
SDC affects the demand for and supply of conventional energy and results in positive effects on the economy. Some of the economic benefits:
- Higher efficiency compared to traditional comfort cooling
- Stability in future energy costs by using freely available deep seawater
- New infrastructure that could attract new property development. For future building connections, the capital costs decrease substantially
- Economies of scale due to the setup of centralized plants instead of individual cooling plants in each building
- Reduced capital and operating costs.
- Cost benefits from substantially lower electricity usage and reduced maintenance.