This project assessed the potential impact of selected, identified innovations on specific types of network (relating to heat, gas, electricity and hydrogen). Generic modelled networks will be developed utilising the 2050 Energy Infrastructure Cost Calculator model developed by a separate ETI project to understand the expected costs of certain types of network.The modelled networks will provide ‘business as usual data’ and a useful basis for further understanding of the impact of identified innovations in terms of overall cost and network performance.
This report considers Gas. Key findings are:-Representative Gas Distribution Model: connecting networks to transport sitesat different capacities for different network lengths, in rural, semi-urban, urban and London contextsContext is a strong influencer of costs, with costs increasing from rural through to urban and London. .Pipe costs dominate the overall network cost, particularly for the longer network lengths.Pipe capacity and hence size has some influence over cost at the longer network lengths where pipe costs are the most significant element.Normalised costs (ie costs per km) fall with increasing network length.Generic decommissioning costs (transmission), 100km length at different capacities / pipe sizes, rural contextDecommissioning costs are of the order of £90k/km.Decommissioning of the pipework comprises around 80%-85% of cost, with the remaining 15%-20% relating to decommissioning the conversion station.Pipe size has a minimal impact on cost.Generic decommissioning costs (distribution)for different contexts and populationsDecommissioning costs range from around £250k/km in London down to £60k/km in rural areas.The relative importance of the different Assemblies in terms of share of cost varies with context: decommissioning the LP network represents the largest share of cost in rural areas (60%) and decommissioning domestic connections represents the largest share of cost in London areas (58%)Generic operational costs associated withremaining part of apartially decommissioned network (distribution)In each context, reduction in Opex with increasing decommissioning is linear.Direct costs represent approximately 80% of the overall Opex for gas distribution infrastructureDecommissioning (abandonment) costs make up a small share of overall costAfter partial decommissioning, NPV of the partially decommissioned network per connection served increases as the percentage of network decommissioned...
This report considers Gas. Key findings are:-Representative Gas Distribution Model: connecting networks to transport sitesat different capacities for different network lengths, in rural, semi-urban, urban and London contextsContext is a strong influencer of costs, with costs increasing from rural through to urban and London. .Pipe costs dominate the overall network cost, particularly for the longer network lengths.Pipe capacity and hence size has some influence over cost at the longer network lengths where pipe costs are the most significant element.Normalised costs (ie costs per km) fall with increasing network length.Generic decommissioning costs (transmission), 100km length at different capacities / pipe sizes, rural contextDecommissioning costs are of the order of £90k/km.Decommissioning of the pipework comprises around 80%-85% of cost, with the remaining 15%-20% relating to decommissioning the conversion station.Pipe size has a minimal impact on cost.Generic decommissioning costs (distribution)for different contexts and populationsDecommissioning costs range from around £250k/km in London down to £60k/km in rural areas.The relative importance of the different Assemblies in terms of share of cost varies with context: decommissioning the LP network represents the largest share of cost in rural areas (60%) and decommissioning domestic connections represents the largest share of cost in London areas (58%)Generic operational costs associated withremaining part of apartially decommissioned network (distribution)In each context, reduction in Opex with increasing decommissioning is linear.Direct costs represent approximately 80% of the overall Opex for gas distribution infrastructureDecommissioning (abandonment) costs make up a small share of overall costAfter partial decommissioning, NPV of the partially decommissioned network per connection served increases as the percentage of network decommissioned...