Greenbyte Documentation

Availability Contracts

Availability contracts are contracts between an owner and the manufacturer or service provider. They are used to decide how contractual availability and contractual lost production should be calculated. Contracts can be assigned to one or many wind farms or solar sites. Contracts used for wind farms can be of type Service, Global, or Custom. The default type is Service.

An availability contract specifies the number of categories that are used to categorize status events into available time, unavailable time, or excluded time. For wind assets, the categorization is then used to decide how wind turbine standstill time should be used in availability and lost production calculations. 

The categories can be assigned a priority. If a period is assigned multiple categories, the priority will decide what category should be used (1 is the highest priority). 

The availability contract also contains information on what potential power calculation should be used to calculate lost production. For wind assets, 3 categories always exist in a contract: no status event and power output, wind speed below cut-in, and wind speed above cut-in. The other categories are added by the user.

The contract also specifies how incoming status events should be categorized by default. Every status code can be set to use a default category. This category can later be overridden per status event.

Consecutive availability contracts

It is possible to configure consecutive availability contracts, with the limitation that contracts cannot overlap.

  • If a status started in contract period 1 and continues in contract period 2, the whole status will be categorized according to contract 1. If you want to change this, split the status at 00:00 as of the start date of contract 2.

  • If status categories have been manually changed and a new contract is assigned for this period, the manually set categories will be overwritten by the new contract.