Global gas: catch methane if you can?
…and for the scale up of natural gas. If 3.5% of methane is leaked, then natural gas is, debatably, no greener than coal. Pages 6-9 quantify methane emissions and leaks…
Gas turbines and CHP: technology leaders?
…gas turbines in the energy transition, an overview of thermodynamic cycles, a build up of the efficiencies of gas turbines, operating parameters of gas turbines and typical economics of CCGTs….
US shale gas: the economics?
…US shale gas, in order to calculate the NPVs, IRRs and gas price breakevens of future drilling in major US shale basins (predominantly the Marcellus). Underlying the analysis is a…
Natural gas: the EU green taxonomy’s 270g/kWh CO2 target?
…conventional gas plus landfill gas (c25%), nature-based CO2 removals (20-25%), blue hydrogen (30%) and CCS (c33%). Generally these blends do not look too bad on costs, inflating a marginal cost…
Sabatier process: synthetic natural gas costs?
The Sabatier process combines CO2 and hydrogen to yield synthetic natural gas using a nickel catalyst at 300-400˚C. Synthetic natural gas costs $100/mcf in order to generate a 10% IRR,…
Flue gas desulfurization: costs of SO2 scrubbers?
…global regulations increasingly limit sulphur in exhaust gases to below 50-300ppm (data here). As a result, 250 coal-fired power plants in the US alone have installed 850 flue gas desulfurization…
Is gas a competitive truck-fuel?
…logistical. Based on real-world data, we think maintenance costs will be 20-100% higher for gas trucks (below). Gas-fired spark plugs need replacing every 60,000 miles. Re-fuelling LNG trucks requires extra…
Gas Gathering: how much CO2 and Methane?
Gas gathering and gas processing are 50% less CO2 intensive than oil refining. Nevertheless, these processes emitted 18kg of CO2e per boe in 2018, hence the gas industry must strive…
Methane emissions detract from natural gas?
This short model calculates the impact of methane emissions on the CO2/boe of burning natural gas, compared against coal. With methane emissions fully controlled, burning gas is c60% lower-CO2 than…
Methane Leaks from Downstream Gas Distribution
This data-file tabulates the methane emissions from downstream gas distribution across 160 US gas networks, which cover 1.1M miles of mains, 61M metered customers and >90% of the country’s retail…