G

Glossary

Biomethane	Gaseous 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-Up	This approach of the scenario building process collects supply and demand data from Gas and Electricity TSOs.
Carbon budget	This 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.
CBA	Cost Benefit Analysis carried out to define to what extent a project is worthwhile from a social perspective.
CCS	Carbon Capture and Storage. Process of sequestrating CO2 and storing it in such a way that it won’t enter the atmosphere.
CHP	Combined heat and power
DSR	Demand 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.
EC	European Commission.
ECI	Energy System Integration Strategy from the European Commission
EV	Electric vehicle.
FCEV	Fuel cell electric vehicle.
GHG	Greenhouse gas.
Hybrid Heat Pump	heating system that combines an electric heat pump with a gas condensing boiler to optimize energy efficiency.
ICE	Internal combustion engine.
IEA	World Energy Outlook.
Indirect electricity demand	Indirect electrification means that electricity is not used as a direct replacement for fossil fuels, but as an input in industrial processes.
IPCC	Intergovernmental Panel on Climate Change.
LNG	Liquefied natural gas.
LTS	Long Term Strategy.
LULUCF	Land 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.

NECPs	National 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.
NGO	Non-governmental Organization.
P2G	Power 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).
P2L	Power to liquids. Combination of hydrogen from electrolysis and Fischer-Tropsch process to obtain synthetic liquid fuels.
P2X	Aggregation of power to gas and power to liquids .
PCI	Project of Common Interest.
Power-to-Hydrogen/P2Hydrogen	Hydrogen obtained from P2H2.
Power-to-Methane/P2Methane	Renewable methane, could be biomethane or synthetic methane produced by renewable energy sources only.
RES	Renewable energy source.
Synthetic fuel	Fuel (gas or liguid) that is produces from renewable electrical energy.
TEN-E	Trans-European Networks for Energy, EU policy focused on linking the energy infrastructure of EU countries.
Top-Down	The “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.
TSO	Transmission System Operator.
TYNDP	Ten Year Network Development Plan.