# Ocean-Sourced City Cooling Honolulu Seawater Air Conditioning LLC Will Cool Downtown Buildings By Katherinev123 | Published 2009-12-11 | Eco Source: Trend Hunter, https://www.trendhunter.com/trends/honolulu-seawater-air-conditioning References: [honoluluswac](http://honoluluswac.com/) Honolulu Seawater Air Conditioning LLC has embarked on a $240 million project to cool half of the buildings in downtown Honolulu using super cold seawater pumped from the ocean. By sucking up water through a pipeline running hundreds of feet below the sea, the Honolulu Seawater Air Conditioning LLC will be able to discharge the cold seawater through [air conditioning units](https://www.trendhunter.com/trends/cooling-systems) around Honolulu. The project stands to reduce the electricity used in the city's air conditioned buildings by up to 75 percent, as well as cut carbon emissions and the use of refrigerants that contribute to ozone depletion. ## Trend Insights (Trend Hunter) - Score: 3.0/10 - Popularity: 18% | Activity: 64% | Freshness: 8% - Audience gender: 50% men, 50% women - Primary generations: Millennial - Top markets: North America ## Categories [Trend Hunter](https://www.trendhunter.com/trends) > [Eco](https://www.trendhunter.com/eco) ## Key Themes ### What's Driving This Trend - **Ocean-sourced Cooling:** Opportunity for businesses to harness ocean water for air conditioning and reduce energy consumption. - **Seawater Air Conditioning:** Potential for innovative companies to develop and provide sustainable cooling solutions using cold seawater. - **Green Building Technologies:** Emerging trend in utilizing eco-friendly cooling methods to reduce carbon emissions and promote sustainability. ### Who This Affects Most - **Energy Efficiency:** Disruptive potential for companies in the energy efficiency sector to create innovative cooling systems using seawater. - **Sustainable Construction:** Opportunity for sustainable construction companies to incorporate seawater air conditioning in their projects for reduced energy consumption. - **Environmental Technology:** Rising demand for eco-friendly environmental technologies that provide efficient cooling solutions using seawater. ## Related on Trend Hunter - [Efficient Air Conditioning Systems](https://www.trendhunter.com/trends/hyperganic.md) - [Energy-Efficient Data Servers](https://www.trendhunter.com/trends/incooling.md) - [Hive-Like Terracotta Cooling Structures](https://www.trendhunter.com/trends/beehive-cooling-installation.md) - [Cooling Rooftop Ads](https://www.trendhunter.com/trends/coors-light-chillboards.md) - [Self-Cooling Exterior Buildings](https://www.trendhunter.com/trends/promenade-building.md) - [Low-Power Outdoor AC Units](https://www.trendhunter.com/trends/green-kinoko-kensho.md) - [Chilled Water-Powered AC Units](https://www.trendhunter.com/trends/soleus-air.md) - [Terracotta AC Systems](https://www.trendhunter.com/trends/nave-air-conditioning-system.md) - [Wearable Air Conditioners](https://www.trendhunter.com/trends/qoola.md)