Load profile analysis for wind turbines and wind farms
Load profile analysis for wind turbines: we optimise the grid connection capacity your wind farm pays for and reduce investment costs.
This lets you use the full power of your wind turbines without costly oversizing. We ensure that, even with additional feed-in from a combination of wind and PV, the maximum permitted feed-in capacities at the grid connection point are not exceeded. The load profile describes how much power your plant feeds in at what time. Anyone who knows it can design the grid connection to fit and avoid reserves that you pay for without using them.
Looking at wind and photovoltaics shows why this pays off. Wind turbines often feed in most in the winter half-year, PV plants in summer. The peaks of the two technologies rarely coincide, so the combined feed-in usually stays below the sum of the rated outputs. A shared grid connection point can thus be better utilised. For the grid operator to agree, the agreed total feed-in capacity must be observed, for example via a hybrid park controller. Connecting an additional PV plant often requires an additional agreement with the grid operator; this is to be checked for the specific grid connection. This is particularly important if PV or storage is to be added later at the same grid connection point.
For this we use modern calculation methods for load flow, short circuit, loss optimisation and thermal dimensioning. We assess grid compatibility on the basis of grid perturbations and disclose possible savings potential. We take battery storage into account early, as well as the planning of necessary substations. A team of electrical engineers is at your side from the start. The technical requirements of Austrian grid operators also play a role: generation plants are divided into types A to D by capacity and grid connection voltage, type B ranges from 0.25 to less than 35 MW, type C from 35 to less than 50 MW. How existing plants, extensions and plants behind a consumption connection are taken into account in the type allocation is to be checked against the applicable TOR Erzeuger. Typical results of a load profile analysis are the level of connection capacity required, times when curtailment is needed, and the question of whether a battery storage system can absorb surpluses. The more the connection is oversized, the more important control and storage become, so that peaks are not lost. The grid connection facility up to the grid connection point is often owned by the wind farm operator, the allocation is to be clarified contractually, so a design that is too large or too small goes directly on your account.
Whether the grid can accept your wind farm is not decided only at the grid application. The choice of turbines, their number and the cable routing already determine the connection capacity. The scope of the project also affects later procedures, because grid export lines and substations are part of the project described in the EIA scoping procedure. The analysis is followed in preliminary design by the grid-technical concept development for wind farms. If you are planning wind with PV, hybrid park planning for wind farms helps. The counterpart for photovoltaics is the load profile analysis for PV plants.
