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To clean our wastewater from households and industry, sewage treatment plants consume a lot of energy: across Europe, they account for around 1 % of total energy production. This makes them among the largest municipal electricity consumers. For municipalities, this high electricity demand means a great financial burden. However, sewage treatment plants can be transformed from power guzzlers into electricity and heat producers, because both wastewater and sewage sludge have great energy potential.

The energy transition can only succeed in collaboration

The tasks associated with the energy and heat transition are highly complex. We can only create intelligent and effective solutions by working together. Therefore, our newly founded NETZ-WERK REGENERATIV unites planners, manufacturers and implementers. Together we realise renewable energy supply solutions for existing and new buildings, neighbourhoods and municipalities. For energy- and cost-efficient solutions in building and neighbourhood supply.

About two thirds of the final energy consumption of German industry is required for process heat. Estimates put the savings potential in the process temperature range from 60 °C at around 125,000,000,000 KWh. In order to push ahead with the energy turnaround, it therefore also makes sense to use wastewater and waste heat.

Modern heat pumps can use air, soil or water as energy sources. These sources have different temperatures. For the efficiency of a HP system, the source temperature makes a big difference. In this blog you will learn more about the impact that the choice of source makes.

The word "energy" is currently on everyone's lips: energy crisis, energy production, energy consumption and energy saving are the buzzwords of the day. From a physical point of view, however, the term energy is often not used properly: Energy cannot be consumed, produced or saved, as the first law of thermodynamics states: energy is always conserved. However, it consists of usable parts, the exergy, and not directly usable parts, the so-called anergy.

At goodmen energy, we specialise in decarbonisation in the building sector. 

But decarbonisation is also urgently needed in the industrial sector, as it is responsible for more than a fifth of greenhouse gas emissions - and  around 30 percent of final energy consumption in Germany.

Therefore industry plays an absolutely key role in the energy transition. 

In recent years, the element of hydrogen has become an integral part of the discussion about the German energy transition. The precious green hydrogen can be obtained from renewable electricity produced with the help of wind turbines and photovoltaic systems through electrolysis. In this process, water is split into its elementary components hydrogen (H2) and oxygen (O) by means of electric current.

The building sector is responsible for a large part of our resource consumption and greenhouse gas emissions: Around 40 % of our total energy and material consumption is caused by the building sector. In addition, it generates 36 % of greenhouse gases and about 33 % of all waste. The impact on the environment is therefore increasingly taken into account when new buildings are planned.

In the future, architecture must be more closely aligned with climatic requirements. We need to think about energy solutions for the urban future, where houses and neighborhoods are designed to keep their energy needs low and, as far as possible, meet them themselves. How do we achieve this?

Cold district heating networks, also known as anergy networks or heating networks 4.0*, use heat from the ground, water and air to supply neighborhoods and urban districts. The temperatures in the network are significantly below those of conventional district or local heating systems. Cold district heating networks can be fed entirely from renewable energy sources. Therefore, they offer a good opportunity for a sustainable, potentially CO₂- and emission-free heat supply - and thus for climate protection and the achievement of climate protection goals.

*In the English literature, there is already reference to the "5th generation district heating and cooling".