ENTSOG TYNDP 2015 - Annex F – Methodology

The assessment of the European gas system under Low and High Infrastructure Scenarios will show different levels of project interaction according to the degree of development of infrastructure. The assessment of the European gas system under the PCI Infrastructure Scenario is used separately only within the TYNDP Step to measure the benefits from a full implementation of the latest PCI list. Its role is to provide a feedback loop to Regional Groups.

2.6.3 Capacity increment considered in the Economic Analysis

The incremental approach is at the core of the cost-benefit analysis. It is based on the differences of indicators and monetary values between the scenario »with the project« and the scenario »without the project«. The inclusion of a capacity incre- ment associated to an infrastructure project depends on the status of infrastructure on both sides of a flange. The next table indicates which increment is used in the Economic Analysis:

CONSIDERED CAPACITY INCREMENT PER SCENARIO

FLANGE A

FLANGE B

INFRASTRUCTURE SCENARIO IN WHICH THE CAPACITY INCREMENT IS CONSIDERED

EXISTING OR FID

FID

Low and High

Non-FID

High

None

None

NON-FID

Non-FID

High

NON-FID

None

None

Table 2.4: Considered capacity increment per scenario

Image courtesy of REN Gasodutos

Ten Year Network Development Plan 2015 Annex F | 11