What does energy self-sufficiency mean?
An energy-self-sufficient building does not need external energy supplies. It independently produces the energy needed for electricity, heating and hot water. Homes that are completely independent often do not even require connection to the public grid. How it's working? One of the processes leading to energy self-sufficiency is the conversion of renewable energy (e.g. from photovoltaic panels) into electricity. The electricity obtained in this way can also power a heat pump that takes care of heating and domestic hot water. Independence means that this energy covers the daily demand for electricity and heat. For this to happen, in the case of electricity produced by a photovoltaic installation, it is necessary to store surpluses that will be useful on cloudy days.
Self-sufficiency and hybrid energy systems
Photovoltaics aren't the only way to achieve energy independence. For businesses, institutions, or entire neighborhoods, it's possible to implement other solutions that effectively support energy independence. A prime example is Veolia's hybrid energy systems , which combine various energy production technologies. Energy self-sufficiency in this context means an independent supply of low-emission electricity, heat, and cooling. What exactly does it involve? Below, you'll find a description of the key systems.
Cogeneration and trigeneration systems
Cogeneration is the process of simultaneously producing electricity and heat. This maximizes the use of primary energy and minimizes losses. Therefore, efficiency is increased, which leads to energy self-sufficiency. Electricity and heat are supplied continuously (even if there is a failure in the central distribution system). Cogeneration is a perfect solution for industrial enterprises, public institutions and even entire housing estates.
In a situation where it is necessary to provide cooling at the same time, a trigeneration system will be an excellent choice. What is that? It is a system that integrates three components: electricity, heat and cold. In this case, energy independence also results from own energy sources. Trigeneration will work well for companies and institutions that need electricity, heating and air conditioning, e.g. in shopping centers.
Hybrid boiler rooms
Energy self-sufficiency in the housing sector? Hybrid residential boiler rooms play an important role here. These are intelligent energy systems combining various energy generation technologies. They may include, for example, photovoltaic panels, heat pumps, gas boilers and energy storage. It is a comprehensive way of providing energy, heat and cooling that adapts to the needs of users. The hybrid system is flexible and economical, ensuring energy independence and reducing greenhouse gas emissions.
Hybrid boiler rooms are also used in business and industrial buildings. Such systems include gas and hydrogen boilers, solar panels, heat pumps, energy storage, fuel cells and hydrogen production electrolysers. All this means that they are able to meet the needs of various industries, including: shopping centers, hospitals and production plants.
Veolia supports energy self-sufficiency
Energy independence offers a sense of security and a way to significantly reduce costs. This is why not only more and more households are moving towards this goal, but also businesses, institutions, and even local governments. However, implementing this concept requires a well-thought-out strategy supported by expert analysis. At Veolia, you'll find a variety of modern solutions, including hybrid energy systems. We provide comprehensive support during the energy transition: from identifying needs, through concept development, supplier selection, equipment installation, and system maintenance. Gain greater energy independence and secure energy supply!
