Building zero-emission radio access networks
The journey to a zero-emission radio access network (RAN) begins with a strategy based on two parallel routes: use less power through increased energy efficiency and decarbonize the RAN through a greater use of renewable energy.
Modernizing a typical legacy base station site to Single RAN can achieve up to 70 percent energy saving and reduce its annual CO2 emissions from more than 70 tonnes, to just 17 tonnes. Furthermore, a Single RAN base station can reduce the Total Cost of Ownership by up to 30 percent, compared to an LTE overlay solution.
Did you know about 90% of the electricity consumed by base stations is converted to waste heat? Moreover, every kilowatt of heat requires one kilowatt of cooling! Liquid cooling can reduce energy consumption of a typical BTS site by up to 50%, compared to traditional air cooling systems and even provides an opportunity for operators to sell the heat as useable energy. Nokia is the first vendor to introduce a liquid cooled base station with the world’s first 2G, 3G and 4G base stations, which is already in commercial operation with Elisa, Finland. At MWC19, Nokia demonstrated the world’s first liquid cooled AirScale 5G base station, including the world’s first liquid cooled massive MIMO antenna, making liquid cooling a reality for all generations of network.
Reduced consumption not only lowers energy bills, but also helps improve the viability of renewable energy solutions. With the capital cost of renewables falling fast, they can be deployed at any base station site and deliver worthwhile economic benefits.
Upgrading to the latest, next generation radio access solutions brings further reductions in emissions. Nokia AirScale base stations use up to 60 percent less energy than earlier generations of radio access solution.
With Nokia Zero Emission solution, every step of the journey will bring its own benefits by lowering costs and improving brand image as an environmentally-responsible operator.
- Up to 70 percent reduction in CO2 emissions
- Up to a 30 percent reduction in the Total Cost of Ownership (TCO)
- For the first time, a broader use of renewable energy sources to reduce and even eliminate CO2 emissions, potentially increasing TCO savings
Some 80 percent of a mobile network’s energy is consumed by base station sites. Mobile operators report an increase of 10-30 percent annually in mobile network energy use. For example, the addition of LTE to existing GSM/WCDMA base station sites accounts for a double digit percentage increase in energy consumption. Nokia’s zero emission solutions can cut the energy consumption of such sites by 70 percent.
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Nokia is on a journey to a greener world. Our aim is that every new product is more energy efficient than the previous model. Nokia is using renewable energy in its own operations wherever available. Today, close to 50 percent of the electricity Nokia consumes in its own operations is from renewable sources. We enable operators to take the same journey by choosing to use renewable energy sources that include wind, solar, fuel cells and energy-efficient battery power, as well as electricity from the power grid generated from renewable sources.