Off the gas grid?
Should we abandon the gas grid and if so, when?
Ted Wildenberg
Discussion
Warning:This presentation does not claim to preach the “truth”, it merely
challenges to think and discuss the energy
production and energy consumption.
Which gas?
What are we talking about:
• In the Netherlands two types of natural gas: high calorific (H-gas) and low calorific (G-gas)
• Also Green Gas (biogas upgraded to G-gas quality) injected in the grid • Biogas directly used for energy production
• What about a hydrogen economy: – How do we produce it?
– Do we need a grid? – Gas or liquid?
Why do we want to get rid of the gas?
• Exploration causes earthquakes Only the Slochteren gas field (Groningen gas) • Natural gas generates CO2 emission
Why do we still use coal?
In the Netherlands 1 kWh from natural gas is approximately € 0,065 and from electricity it is approximately € 0,20
Who are the consumers of the gas?
• The Netherlands imports, produces and exports natural gas– import (H-gas) mainly from Norway and Russia
– domestic production (on- and off-shore, G- and H-gas) export (G- and H-gas)
• heating and cooking (households, G-gas) • electricity production (mainly H-gas)
• industrial consumption: – fuel (mainly H-gas)
– feedstock (more than 10% of the total Dutch consumption, mainly G-gas)
Numbers *
Domestic energy consumption (2015): • 38% natural gas • 37% oil • 17% coal • 4% renewable • 1 % nuclear • 3% other
Energy consumption households (2015): • 74% natural gas
• 19% electricity • 4% biomass • 3% solar
What about the gas grid?
The Netherlands has the best gas infrastructure in the world! Total length of the main grid is 11.000 km!
The gas grid can be used for Green Gas, hydrogen or other gaseous fuels.
It is law that unused/superfluous parts of the grid have to be removed! What if we remove presently unused parts of the grid or we do not connect new residential areas to the gas grid and after a period of time e.g. the hydrogen economy is booming?
Can we use the off-shore grid for sustainable hydrogen transport created by off-shore wind parcs?
Alternatives
Electricity:
• only 6% is sustainable (biomass included)
• average household consumes per annum 1,500 m3 natural gas which is approx.
15,000kW; average electricity consumption is 3,500 kW so total electricity consumption quadruples
• electricity consumption rises for new products (e.g. electric transport, induction cooking)
• as mentioned before: electric kW is three times as expensive as a natural gas kW
• what about grid balancing?
Hydrogen:
• Most of the hydrogen is manufactured from natural gas
• What infrastructure do we use?
What’s the best way to solve the problem?
Trias Energetica:
1. use less/no energy (isolation, heat exchange etc.)
2. use sustainable energy
What’s the best time to switch from
natural gas to electricity or other energy
sources?
Waiting doesn’t help you or your children!
Start isolating/saving energy and creating your own
energy.
Energy balancing (grid balancing) is a problem but
that’s work in progress.
Discussion
To which extent are the present political statements
realistic?
E.g. Paris agreement mentions 2050, “of the grid in 2020”, fully electric transport in 2025 etc.