Dec 2, 2015

Top 10 Energy efficient hospitals in the world

Top 10
Staff writer
5 min
For modern hospitals, sustainabili...

For modern hospitals, sustainability is a paradox. On the one hand, climate change and pollution present serious public health risks, and reducing them would lower the strain on hospital resources. At the same time, hospitals consume large amounts of energy and produce high levels of waste. Many caregivers and administrators fear that they cannot lower their facilities' environmental impact without compromising patient care. Nonetheless, few hospitals admit defeat, and many continue to develop new environmental initiatives.

The following 10 hospitals have been particularly effective at protecting the environment while maintaining or improving patient outcomes.

10. Bir Hospital-- Kathmandu, Nepal

Bir Hospital has received international recognition for its waste reduction efforts, which are considered as much a humanitarian feat as an environmental one. The hospital has cut its medical waste in half, and now recycles 55 percent of all the waste it produces. Not only does this lessen the hospital's environmental impact, but it has also improved patients' outcomes by reducing their exposure to harmful wastes. Bir is currently experimenting with new methods that will allow it to reduce waste even further. These include vermicomposting, as well as a biogas system that could power the hospital with the methane from organic waste.

9. Martha's Vineyard Hospital-- Oak Bluffs, USA

As an island facility, the Martha's Vineyard Hospital is committed to reducing the strain on local wetlands and waterways. The facility has its own leaching pits and bioretention areas, which it uses to remove pollutants from storm water runoff and wastewater. Not only does this preserve the environment, but it also helps keep island residents healthy, reducing the strain on hospital resources. The hospital also has bike racks and bus service accommodations, and offers preferred parking to residents who arrive in car pools and/or in fuel-efficient vehicles.

8. Sunnybrook Centre-- Toronto, Canada

The Sunnybrook Health Sciences Centre divides its environmental initiatives into five main goals: energy savings, eco-friendly transportation, responsible waste management, procurement, and raising awareness. The hospital has implemented a gas scavenging program in its operating rooms, thereby preventing harmful anesthetic gases from leaking into the environment. It serves food in biodegradable containers, composts food waste, and uses dual-fuel shuttles to transport patients to and from the building. The hospital estimates that these initiatives eliminate nearly 9,000 metric tons of carbon dioxide emissions each year.

7. Wythenshawe Hospital-- Manchester, UK

Also known as the University Hospital of South Manchester, this facility relies on a wood chip boiler for much of its power. The first boiler was installed in early 2008, and by mid-2010 it was able to cut energy use by 26 percent and make the facility's cardiac center self-sufficient. The hospital has since installed a larger boiler and a ground heat pump to further reduce carbon emissions. Wythenshawe has installed energy-efficient light bulbs, insulation, and other technologies to reduce energy use and pollution. It also hosts a monthly farmer's market, helping patients to shop sustainably and eat more fruits and vegetables in one fell swoop.

6. The Pittsburgh Children's Hospital-- Pittsburgh, USA

The Pittsburgh Children's Hospital was one of the first pediatric hospitals in the United States to receive LEED certification. The hospital was built from post-consumer steel and other recycled materials, and all sealants, adhesives, and paint used on the building have minimal levels of volatile organic compounds. It encourages its patients and visitors to be sustainable, providing them with bike racks, convenient access to public transit, and discounts if they arrive in a car pool. Hospital staff offer green education to patients, visitors, and other staff members, helping them to continue saving the planet after they leave.

5. Mount Elizabeth Novena Hospital-- Singapore

One of the first things patients will notice about the Mount Elizabeth Novena Hospital is that its roof is covered in trees. Not only is this visually appealing, but by blocking sunlight, it reduces the amount of electricity needed to cool the building. The hospital has further lowered its energy use by installing insulated glass windows, energy-saving lights, and motion sensor lighting. The roof contains photovoltaic solar panels, which the hospital uses to boil water and to power lights for the rooftop garden. There is also an efficient water management system that has reduced water use by 30 percent.

4. Sechelt Hospital-- Sechelt, Canada

Known as Saint Mary's Hospital until earlier this year, this LEED Gold-certified facility has long demonstrated a commitment to preserving the environment. Saint Mary's uses a series of radiant slabs and boreholes for heating and cooling, allowing it to minimize energy use in climate control. Its 19 kW photovoltaic system has been able to meet much of its energy needs on sunnier days. The hospital was also designed with green building principles, reducing energy use by 40 percent. In 2012, the facility was renovated and enlarged in a carbon-neutral manner.

3. Kohinoor Hospital-- Mumbai, India

Since its inception in 2009, the Kohinoor Hospital has been committed to reducing its environmental impact while saving its patients money. According to a 2012 article in the Economic Times of India, it was the only hospital in all of Asia at the time to be both LEED certified and Platinum rated. Kohinoor relies entirely on LED and CFL light bulbs, and uses photovoltaic power instead of geysers to heat its water. The hospital has installed high-efficiency air conditioning equipment, allowing it to cut HVAC energy use in half. It also harvests rainwater and treats its own sewage in order to reduce water use.

2. Khayelitsha Hospital-- Khayelitsha, South Africa

Considered one of the best hospitals in South Africa, Khayelitsha was built with the highest-quality passive design techniques available to reduce artificial lighting. Where electric lights are necessary, the hospital relies on CFLs and LEDs to minimize energy use. The building has its own photovoltaic system and wind turbine to generate energy, as well as its own autoclaves to sterilize and reuse water. All paints, adhesives, and solvents used on the hospital contain minimal levels of volatile organic compounds.

1. Torre de Especialidades-- Mexico City, Mexico

When most hospitals seek to improve sustainability, they focus on lowering their own energy and resource use, thereby passively reducing pollution and waste. The Torre de Especialidades, however, actively removes smog from the surrounding air. The hospital is surrounded by a giant, honeycomb-like screen that is coated with titanium dioxide, which converts smog into benign chemicals upon contact. The screen also blocks sunlight, reducing the amount of energy it takes to air condition the hospital. Building the Torre de Especialidades has had the same effect on air quality as taking a thousand cars off the road each day.

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Jun 7, 2021

Trafigura and Yara International explore clean ammonia usage

Dominic Ellis
2 min
Commodity trading company Trafigura and Yara International sign MoU to explore developing ammonia as a clean fuel in shipping

Independent commodity trading company Trafigura and Yara International have signed an MoU to explore developing ammonia as a clean fuel in shipping and ammonia fuel infrastructure.

Reducing shipping emissions is a vital component of the fight against global climate change, yet Greenhouse Gas emissions from the global maritime sector are increasing - and at odds with the IMO's strategy to cut absolute emissions by at least 50% by 2050. 

How more than 70,000 ships can decrease their reliance on carbon-based sources is one of transport's most pressing decarbonisation challenges.

Yara and Trafigura intend to collaborate on initiatives that will establish themselves in the clean ammonia value chain. Under the MoU announced today, Trafigura and Yara intend to work together in the following areas:

  • The supply of clean ammonia by Yara to Trafigura Group companies
  • Exploration of joint R&D initiatives for clean ammonia application as a marine fuel
  • Development of new clean ammonia assets including marine fuel infrastructure and market opportunities

Magnus Krogh Ankarstrand, President of Yara Clean Ammonia, said the agreement is a good example of cross-industry collaboration to develop and promote zero-emission fuel in the form of clean ammonia for the shipping industry. "Building clean ammonia value chains is critical to facilitate the transition to zero emission fuels by enabling the hydrogen economy – not least within trade and distribution where both Yara and Trafigura have leading capabilities. Demand and supply of clean ammonia need to be developed in tandem," he said.  

There is a growing consensus that hydrogen-based fuels will ultimately be the shipping fuels of the future, but clear and comprehensive regulation is essential, according to Jose Maria Larocca, Executive Director and Co-Head of Oil Trading for Trafigura.

Ammonia has a number of properties that require "further investigation," according to Wartsila. "It ignites and burns poorly compared to other fuels and is toxic and corrosive, making safe handling and storage important. Burning ammonia could also lead to higher NOx emissions unless controlled either by aftertreatment or by optimising the combustion process," it notes.

Trafigura has co-sponsored the R&D of MAN Energy Solutions’ ammonia-fuelled engine for maritime vessels, has performed in-depth studies of transport fuels with reduced greenhouse gas emissions, and has published a white paper on the need for a global carbon levy for shipping fuels to be introduced by International Maritime Organization.

Oslo-based Yara produces roughly 8.5 million tonnes of ammonia annually and employs a fleet of 11 ammonia carriers, including 5 fully owned ships, and owns 18 marine ammonia terminals with 580 kt of storage capacity – enabling it to produce and deliver ammonia across the globe.

It recently established a new clean ammonia unit to capture growth opportunities in emission-free fuel for shipping and power, carbon-free fertilizer and ammonia for industrial applications.

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