NREL's Land-based Balance of System Systems Engineering (LandBOSSE) model is a tool for modeling the balance-of-system (BOS) costs of land-based wind plants. BOS costs currently account for approximately 30% of the capital expenditures needed to install a land-based wind plant; they include all costs associated with installing a wind plant, such as permitting, labor, material, and equipment costs associated with site preparation, foundation construction, electrical infrastructure, and tower installation.NREL developed LandBOSSE after identifying a need for a hybrid of a process-based model and an empirically derived model that can provide flexibility for assessing wind plant BOS costs at a system level. Other NREL BOS models have relied on empirical fits of legacy industry data, which limits their predictive ability. LandBOSSE, however, was designed to help users explore tradeoffs between innovative design scenarios while balancing the level of detail and speed required for model execution. The model was developed using a hybrid of process-based and empirically derived methods to create a modular model design that will allow for updates as wind energy technologies evolves. The goal of LandBOSSE is to allow researchers, analysts, wind power developers, government agencies, and the public to explore how BOS costs may vary for different wind plant designs. This report summarizes the approach, methods, and equations used to develop LandBOSSE Version 2.1. Future versions of the model may incorporate additional process-based capabilities or modify calculations within the code. Refer to the GitHub repository at https://github.com/WISDEM/LandBOSSE for the most up-to-date version of the software documentation and code. vi This report is available at no cost from the National Renewable Energy Laboratory (NREL) at www.nrel.gov/publications.

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This report is available at no cost from the National Renewable Energy Laboratory (NREL) at www.nrel.gov/publications. U.S. Department of Energy (DOE) reports produced after 1991 and a growing number of pre-1991 documents are available free via www.OSTI.gov.

No abstract

Department of Energy (DOE) reports produced after 1991 and a growing number of pre-1991 documents are available free via www.OSTI.gov.