SymbioCity unlocks synergies between urban systems to save resources while driving growth.


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We waste vast amounts of energy. Waste sent for landfill and excess heat from industry are just two examples. But we can use waste for energy – and get rid of polluting landfills as a bonus.

You can combine waste management with heat production to create a new power generation source. Or connect industrial waste heat to your municipal energy plant and cut energy costs by 50% or more. SymbioCity helps you find and unlock these assets. Here are a couple of key options to consider.

Get access to excess

Energy-smart planning and design in homes can save large sums of money. In industry, excess heat from production processes is an often-neglected energy source waiting to be exploited instead of being wasted.

Selling surplus energy can even provide the extra revenue a company needs to survive. Waste heat and energy is easy to recover with a district heating and cooling system (DHC).

Local resources like wind, solar, geothermal power and bioenergy can play a key role in this arena, too.

District heating and cooling – our energy heroes

Sweden has long been an international leader in planning and designing combined heat and power plants and connecting them to district heating grids. District heating is ten times more efficient than individual household heaters and can keep entire cities warm. If Europe had the same ratio of district heating as Sweden, the European Union would meet its Kyoto CO₂ targets four times over.

You decide where to start

All sorts of actions can be taken at many different levels. Your city’s local conditions ultimately decide where the benefits of more effective energy production lie. Some ideas:

  • Rising demand for energy to cool industries and offices can be offset by effective urban planning combined with improved building design, leaner production processes, energy-efficient equipment, and district cooling systems that use cold water from lakes or the sea.
  • Waste incineration is a potential option for large combined heat and power systems. Great environmental care must be taken and the best available technology used to curb dioxin emissions.
  • Cooperation between energy utilities and industrial users can cut peak power loads for improved energy supply reliability.
  • Fermentation of biodegradable septic sludge, wastewater sludge or similar waste for small and medium-scale biogas production for heating, electricity or even vehicle fuel.