BiomethaneGaseous renewable energy source derived from agricultural biomass (dedicated crops, by-products and agricultural waste and animal waste), agro-industrial (waste from the food processing chain) and the Organic Fraction Municipal Solid Waste (OFMSW).
Bottom-UpThis approach of the scenario building process collects supply and demand data from Gas and Electricity TSOs.
Carbon budgetThis is the amount of carbon dioxide the world can emit while still having a likely chance of limiting average global temperature rise to 1.5°C above pre-industrial levels, an internationally agreed-upon target.
CBACost Benefit Analysis carried out to define to what extent a project is worthwhile from a social perspective.
CCSCarbon Capture and Storage. Process of sequestrating CO2 and storing it in such a way that it won’t enter the atmosphere.
CHPCombined heat and power
DSRDemand Side Response. Consumers have an active role in softening peaks in energy demand by changing their energy consumption according to the energy price and availability.
ECEuropean Commission.
ECIEnergy System Integration Strategy from the European Commission
EVElectric vehicle.
FCEVFuel cell electric vehicle.
GHGGreenhouse gas.
Hybrid Heat Pumpheating system that combines an electric heat pump with a gas condensing boiler to optimize energy efficiency.
ICEInternal combustion engine.
IEAWorld Energy Outlook.
Indirect electricity demandIndirect electrification means that electricity is not used as a direct replacement for fossil fuels, but as an input in industrial processes.
IPCCIntergovernmental Panel on Climate Change.
LNGLiquefied natural gas.
LTSLong Term Strategy.
LULUCFLand Use, Land Use Change and Forestry. Sink of CO2 made possible by the fact that atmospheric CO2 can accumulate as carbon in vegetation and soils in terrestrial ecosystems.
NECPsNational Energy and Climate Plans are the new framework within which EU Member States have to plan, in an integrated manner, their climate and energy objectives, targets, policies and measures to the European Commission. Countries will have to develop NECPs on a ten-year rolling basis, with an update halfway through the implementation period. The NECPs covering the first period from 2021 to 2030 will have to ensure that the Union’s 2030 targets for greenhouse gas emission reductions, renewable energy, energy efficiency and electricity interconnection are met.
NGONon-governmental Organization.
P2GPower to gas. Technology that uses electricity to produce hydrogen (Power to Hydrogen – P2H2) by splitting water into oxygen and hydrogen (electrolysis). The hydrogen produced can then be combined with CO2 to obtain synthetic methane (Power to Methane – P2CH4).
P2LPower to liquids. Combination of hydrogen from electrolysis and Fischer-Tropsch process to obtain synthetic liquid fuels.
P2XAggregation of power to gas and power to liquids .
PCIProject of Common Interest.
Power-to-Hydrogen/P2HydrogenHydrogen obtained from P2H2.
Power-to-Methane/P2MethaneRenewable methane, could be biomethane or synthetic methane produced by renewable energy sources only.
RESRenewable energy source.
Synthetic fuelFuel (gas or liguid) that is produces from renewable electrical energy.
TEN-ETrans-European Networks for Energy, EU policy focused on linking the energy infrastructure of EU countries.
Top-DownThe “Top-Down Carbon Budget” scenario building process is an approach that uses the “bottom-up” model information gathered from the Gas and Electricity TSOs. The methodologies are developed in line with the Carbon Budget approach.
TSOTransmission System Operator.
TYNDPTen Year Network Development Plan.

Publishing Info


European Network of Transmission System Operators for Gas
Avenue de Cortenbergh 100
1000 Brussels, Belgium


European Network of  Transmission System Operators for Electricity
Rue de Spa, 8
1000 Brussels, Belgium



Olivier Lebois
Pieter Boersma
Cihan Sönmez
Dante Powell

Sub-Team leads of the Joint WG Scenario Building
Joint WG Scenario Building
ENTSOG WG Scenarios
ENTSO-E Regional Groups


DreiDreizehn GmbH, Berlin | www.313.de

Publishing date

November 2020