Shallow hydraulic fractures filled with several tenths of m3 of sand in formations that are several orders of magnitude less permeable than that of the enveloping formation should increase specific gas capacity by factors of 10 or more.
Initial inconsistencies were found between energy supply and demand and addressed, the treatment of gas generation, capacity factors, total installed generating capacity and installation rates of renewables employed.
Skins a few mm thick consisting of material whose gas phase permeability is 0.01 of the formation can reduce the specific gas capacity of an SVE well by factors of 2 to 10 or more.
Capacity factor for the natural gas hybrid system is 23%%, and for the biogas hybrid system 40%%, compared with solar-only operation value of 19%%.
Also capacity factor increases from 19to40%0 % for biogas and 23%% for natural gas.
These options were each represented in the model as technology (capacity factor (CF), emission factor (EF), and time to adjust capacity), energy resource mix (hydro, oil, nuclear, gas, and green energy), and financial instrument (cost recovery time or expectation formation).
In that hypothetical situation, natural gas combined cycle plant without carbon capture comes out as relatively competitive due to its low capital cost, high capacity factor and low emissions of CO2 per megawatt-hour of power generated.
The weighted average capacity factor in 2012 for the same generating technologies was 39% for hydro, 56% for coal, 38% for natural gas, and 36% for oil [58].
In northern Europe, solar panel capacity factor is just 15%.
Con Edison already has unused gas capacity for New York City generation.
