With a capacity limitation contract ("on demand"), you contractually agree with your grid operator to limit the requested transmission capacity if your grid operator requests it. In other words, you agree on a capacity limit between you and your grid operator and the conditions and fees are agreed in advance.

In a capacity limitation agreement, you may be represented by a CSP, but you do not have to be. Even if you are not an authorised CSP yourself, you can enter into a capacity limitation contract directly with the grid operator. The exception is customers larger than 60MW. For this group of customers, the Grid Code legally requires them to always designate a CSP.