Using energy efficiently
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Using energy efficiently
The cleanest energy is the energy that isn’t needed. There is a huge potential for energy conservation, especially in buildings, industry and transportation.
Saving energy and using energy more efficiently are the two main factors involved in creating a sustainable energy supply for the future. This can be achieved by controlling energy consumption and integrating energy-saving products and solutions in buildings, industry and transportation. Even household appliances offer opportunities for improving efficiency. Modern smart home appliances use less than half as much energy as appliances from the 1990s.
Briefly shutting off certain electrical systems does not cause any major side effects – good examples include cold storage and air conditioning. Also, most people would probably not notice if the elevator was a bit slower than usual. There are many ways to reduce energy consumption in specific areas, particularly when supplies are depleted and prices high. This so-called demand management, primarily used in the United States, helps to relieve power grids.
Buildings have a huge potential for energy savings – after all, they are responsible for 40 percent of the world’s energy consumption and 21 percent of greenhouse gas emissions. Intelligent building technology can dramatically increase the energy efficiency and comfort in buildings along with the productivity of building occupants and companies.
The important thing is that all systems and components are configured to work together. Total Building Solutions (TBS) from Siemens provides this level of integration. Here, all electrical installations, heating, air conditioning, ventilation, lighting, shades, access control systems, video surveillance, alarms, fire detection and evacuation systems are designed to complement each other perfectly. A continuous energy optimization process can dramatically increase energy efficiency in buildings.
The future of transportation lies in electromobility. Electric motors, whether in buses, trains or electric cars, are around three times more efficient than internal combustion engines. Electric vehicles can also be integrated as part of a smart grid. In public transportation, the low-floor Avenio tram is an environmentally friendly and energy-saving alternative. They’re also economic – the costs of maintenance and replacement parts, along with energy savings mean that dividends of up to 30% are possible.
In industry, there are significant savings to be made in energy efficiency and production. Electric engines, that are used for conveyor belts or pumps for example, currently use almost two thirds of energy used in industry. With optimized drive solutions from Siemens, the power consumption of industrial drives is reduced by up to 70% - such an investment pays for itself through energy savings in less than two years.
Siemens has defined three phases to help optimize energy consumption in industry: identification, evaluation and realization. Siemens management systems, such as the free SinaSave software, can help save energy in the first two phases. The appropriate energy-saving solution is implemented in the third phase.
Integrated, digital infrastructure is key to the future of modern cities.