Wind farm construction tender: electrical and construction works
Wind farm construction tender for electrical and construction works: we prepare the documents, narrow down the best bidders and support the award.
A precise and well-considered tender is the key to successfully implementing your wind farm. We take over the professional tendering and award of electrical and construction works, reliably, transparently and tailored to your project. This starts with the tender documents for the grid export line, the access road or other infrastructure and extends to narrowing down the best bidders. We support you throughout the process so that you achieve the best price in the award procedure. In a tender, several companies are invited to submit bids and the bids are compared against uniform criteria. This creates price transparency and comparability. The more precise the performance specification based on the execution planning, the better the bids for civil works, road building, cable laying and grid export cabling can be compared.
For a genuine comparison, bidders need uniform items and measurement rules; in Austria, pricing usually follows ÖNORM B 2061 and the award procedure itself ÖNORM A 2050. This way prices are not merely placed side by side but actually become comparable. For private construction contracts in Austria, ÖNORM B 2110 is frequently agreed as the contractual basis. If it is agreed, it allocates risks to the spheres of client and contractor: documents you provide lie in your sphere; how the remaining risks are distributed depends on the agreed version of ÖNORM B 2110 and the specific contract documents. Standardised performance specifications and bills of quantities make items comparable; ÖNORM A 2063 governs the electronic exchange of tender and bid data.
A clean delineation of services is particularly important for a wind farm, because civil works, cable laying and grid connection cabling interlock and risks arise at the interfaces between separately awarded services. The more clearly the interfaces are described, the fewer variation orders can be expected later. The order of precedence of the contract documents is also important. It should be expressly specified in the tender and contract documents together with the applicable version of the standard. For cable crossings of utility lines or roads, practice calls for structural protection, which is to be tendered as separate items. The verification requirements also belong in the bill of quantities: the bearing capacity of roads and crane hardstandings is usually evidenced by tests such as plate load tests; the type and scope are to be specified in the technical contract documents and in line with local requirements.
The conditions from the permit decision likewise belong in the tender. Construction time restrictions to protect nesting sites or fixed clearing periods determine the construction companies' schedules and must be known to all bidders. And anyone who awards separately coordinates the contractors themselves, because coordination lies in the client's sphere. The basis of the documents is the execution planning of the wind farm. In addition, we also tender the wind turbines. After the award, our local building supervision monitors the construction work. For photovoltaics, there is the tender of electrical and construction works for PV systems.
