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Updated by Hans De Keulenaer on Jun 01, 2020
Headline for Solutions for the Energy Transition
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Solutions for the Energy Transition

Energy solutions that are low-carbon, publicly acceptable and evolving towards cost-effectiviness.

Electric vehicles

An electric vehicle uses 3 to 5 times less energy than its combustion equivalent. And its electricity use will be increasingly climate-neutral.


Hydroelectricity is electricity produced from hydropower. In 2015, hydropower generated 16.6% of the world's total electricity and 70% of all renewable electricity, and was expected to increase about 3.1% each year for the next 25 years.

Passive house

Passive house (German: Passivhaus) is a rigorous, voluntary standard for energy efficiency in a building, which reduces the building's ecological footprint.


Bioenergy is renewable energy made available from materials derived from biological sources.


Cogeneration or combined heat and power (CHP) is the use of a heat engine or power station to generate electricity and useful heat at the same time. Trigeneration or combined cooling, heat and power (CCHP) refers to the simultaneous generation of electricity and useful heating and cooling from the combustion of a fuel or a solar heat collector.

Car sharing

Short-term rentals - often by the hour - of cars.

Circular economy

Looking beyond the current take-make-waste extractive industrial model, a circular economy aims to redefine growth, focusing on positive society-wide benefits. It entails gradually decoupling economic activity from the consumption of finite resources, and designing waste out of the system.

Deep Renovation

Deep Reduction or Deep Energy Reduction is a term used in US for a deep renovation or a deep refurbishment, which aims at 75 % or more reduction in energy use compared to before the improvement.

Energy management

Energy management helps businesses and consumers to make better and more rational use of energy can lead to important benefits in terms of enabling cost savings and promoting efficiency.

Heat pumps

A heat pump is a device that can provide heating, cooling and sanitary hot water for residential, commercial and industrial applications.

District Energy

District energy delivers sustainable heating and cooling, connecting local resources to local needs.

Industrial symbiosis

Industrial symbiosis is a much broader concept but could be applied to energy use (e.g. district energy, microgrids, collaborative renewables, ...). Synergies between industry and energy communities could be explored as well.

Hydrogen electrolysis

Production of hydrogen using low-carbon electricity.

Carbon Capture & Storage

Carbon Capture and Storage (CCS) is a technology that can capture up to 90% of the carbon dioxide (CO2) emissions pro­duced from the use of fossil fuels in electricity generation and industrial processes, preventing the carbon dioxide from entering the atmosphere.

Solar Power – DecarbEurope

Solar photovoltaic panels convert sunlight into electricity. They can be mass produced and over the past decade, their costs have reduced significantly. They have no moving parts and hence can enjoy a long lifetime (if heat if managed properly).

Nearly zero-energy buildings

Nearly zero-energy buildings (NZEBs) have very high energy performance. The low amount of energy that these buildings require comes mostly from renewable sources.

Smart Appliances

Smart appliances are probably the main option to achieve flexibility of the energy demand in the residential and commercial sector. The energy consumption load patterns of smart appliances can be remotely shifted or otherwise altered with acceptable user impact.

Carbon Upcycling

Process to convert CO2 emissions into nanomaterial powders.

Small Hydropower

Small hydropower dams are proliferating around the world, driven in part by policies to promote renewable electricity. Though assumed to be low impact, sometimes small hydropower dams can have high impacts and generally make insignificant contributions to electricity grids.

Automated Wood-pellet Stoves

Burning wood is a source of heat energy. Although CO2 is released when burned, wood is considered to be carbon neutral since it absorbs the same amount of CO2 from the atmosphere during its growth. Automated wood-pellet stoves provide space heating. Modern stoves have built-in temperature and timer controls and fans that distribute warm air around the room. They are easier to regulate than log burning stoves and need little attendance during their operation. The pellet feed hopper can provide temporary internal storage for fuel for several days.  

Large-scale rapid response electrolysis

This solution provides grid balancing services while producing green hydrogen or ammonia. Also metal electrolysis can provide demand response, though not at the same speed as power-to-X solutions.

Heliogen, artificial intelligence to concentrate solar heat.

A secretive startup backed by Bill Gates has achieved a solar breakthrough aimed at saving the planet.