The business model of Gasunie Deutschland is largely identical to that of GTS. The main differences between the Dutch and the German regulation models are as follows:
- The permitted return on capital consists of the real interest costs and a competitive return on equity, up to a maximum share of 40% of equity in the total capital. The permitted nominal return on equity for all investments is on average approximately 7.4% for the current regulation period (from 2013 up to and including 2017).
- New investments receive a return on capital from the beginning, and immediately contribute to revenues.
- For each regulation period, BNetzA carries out an individual efficiency benchmark on the total costs of a network company. For the current regulation period 2013–2017, Gasunie Deutschland has received an assessment rating of ‘100% efficient’.