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Nokia Siemens Networks drives the usage of renewable energy in remote base station sites
Posted: 21-Mar-2008 [Source: Nokia Siemens]

[Nokia Siemens looking to increase use of renewable energy in remote base station sites by 2011.]

Espoo, Finland and Beijing, China -- n new growth markets particularly, where mobile networks are expanding into rural areas, advanced infrastructure such as a power grid is not always reliable or readily available and base station sites need to run autonomously. A sustainable alternative is to use renewable energy sources such as wind and solar power.

Traditionally, the energy used to operate these sites has come from diesel generators that not only create CO2 and other harmful emissions, but also require regular re-fuelling and skilled maintenance work, which leads to additional travel and maintenance costs for the operator. Most importantly, the cost of diesel is high and is expected to rise in the future.

"A sustainable alternative to power remote base station sites is to use renewable energy sources such as wind and solar power. By 2011, our first choice to power these sites will be renewable energy," said Anne Larilahti, head of environmentally sustainable business, Nokia Siemens Networks, in a speech given in the Green Forum industry event in Beijing today.

Nokia Siemens Networks' autonomous sites can be configured to best suit the environment of the site. In the sunniest parts of the world, photovoltaic cells can be used to convert sunlight to energy and provide the electricity needed to operate the site, and often solar panels are complemented with wind turbines.

"Solar and wind technologies are mature, they have a long life time, their operational cost is almost nonexistent and the capital expenditure required is decreasing. The lowering investment cost and the increasing prices of fossil fuels work together to improve the business case of utilizing renewable energy sources" said Larilahti.

"This is good news for telecom operators in China that are looking for ways to manage their long term costs. As China's government moves ahead with plans to increase its renewable energy supply and focus on energy reduction technologies, Nokia Siemens Networks' wind and solar solutions will help to power the increasing demands in the telecommunications industry. Not only will this result in cost and energy savings for operators, but it will contribute to a greener environment for all," said David Ho, Chairman of Nokia Siemens Networks, Greater China region, speaking at the Green Forum event.

The conditions of each site are studied in order to decide on the optimal configuration of solar panels, wind turbines or hybrid combinations. With its network planning Nokia Siemens Networks finds the optimal solution for each site. Sophisticated network design takes into account local solar and wind conditions, site landscape and other factors, to create radio access networks that need minimal external support.

Wind and solar powered sites need minimal maintenance and they are also relatively easy and inexpensive to install. Renewable power sources are an excellent choice for many emerging markets, because they contribute to the low total cost of ownership that is vital for providing affordable communications services to subscribers. With increasing oil prices, payback times on the investment to hybrid solar-wind powered base station sites are continuously decreasing. Considering capital expenditure and operational cost, an autonomous site powered by renewable energy sources pays off after 2 - 4 years in a good sunny and/or windy location.

Nokia Siemens Networks through its parent companies has been working on alternative energy sources since 1981. The company is increasingly installing sites that are run by renewable energy. Currently the base station sites running on renewable energy sources have been installed to approximately 30 countries.

Besides finding new, more environmentally friendly ways of generating energy such as deploying renewable power sources, it is critical to pay attention to reducing energy consumption overall. Most of the energy in a typical telecommunication network is consumed by base stations in mobile networks. Energy efficiency of Nokia Siemens Networks base station products plays a key role in the use of renewable energy sources for powering base stations. Combining high efficiency base station technology with the best in renewable energy sources, Nokia Siemens Networks offers a solution that matches to the local site conditions.

Nokia Siemens Networks aims at net positive impact to the environment. Advanced mobile and fixed communication technology can play a significant role in creating a sustainable future by reducing adverse environmental impacts while at the same time increasing opportunities for economic welfare and growth. The goal of Nokia Siemens Networks is to connect the world in a way that creates a net positive impact to the environment and society by maximizing the benefits telecommunications can bring to people and businesses, while at the same time minimizing the environmental footprint of its own products and operations.


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