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From page 62... ... 62 Report Overview • This report summarizes the results of a survey of microgrid analysis tools as part of ACRP Project 1026, "Airport Microgrid Implementation Toolkit." • The objectives of the survey are to inform the development of the project team's microgrid toolkit and to create a resource for future airport microgrid project proponents. • The project team surveyed more than 30 tools and broadly grouped tools according to whether they are used for technoeconomic analysis or for power system analysis. Read the entire page →
From page 63... ... Existing Microgrid Assessment Tools 63 • The project team should consider using similar data in the different models to explore the quantitative differences in the results if project resources allow for additional analysis. • The Airport Microgrid Implementation Toolkit should provide a short and accessible digest of the research conducted in this report, noting the types of tools, the leading examples, and how they can be combined. Read the entire page →
From page 64... ... 64 Airport Microgrid Implementation Toolkit These questions concern project economics and/or technical feasibility, two domains which are intimately linked in planning and design. Simulation tools, such as those reviewed in this study, can provide answers to both sets of questions. Read the entire page →
From page 65... ... Existing Microgrid Assessment Tools 65 tariff rates, fuel prices, DER costs, interest rates, power/energy market products) Read the entire page →
From page 66... ... 66 Airport Microgrid Implementation Toolkit depth or granularity of other reports. This report focuses instead on the use cases for the dif ferent models considered. Read the entire page →
From page 67... ... Existing Microgrid Assessment Tools 67 and REopt. DERCAM+ and REopt are both developed and maintained by US national labora tories. Read the entire page →
From page 68... ... 68 Airport Microgrid Implementation Toolkit The Microgrid Group at LBNL has published extensively using DERCAM and the latest ver sion DERCAM+. Initial development of DERCAM is welldocumented.74 Later developments starting in 2013 by LBNL have included enhancements to allow analysis of particular case studies and scenarios, for example the addition of a carbon tax, heat recovery, storage, power quality and reliability, minimization of CO2 emissions as a cost function objective, zeronetenergy building constraints, and building retrofits. Read the entire page →
From page 69... ... Existing Microgrid Assessment Tools 69 • HOMER Grid: Adds enhanced capability for modeling gridconnected systems including demandcharges and selfconsumption parameters, complex tariffs and incentive structures, and extended grid outages. A comparison of HOMER Grid to HOMER Pro is available online.78 • HOMER QuickGrid: A free web application designed to help customers estimate demand charge reduction potential through a mix of generators, PV, and battery resources. Read the entire page →
From page 70... ... 70 Airport Microgrid Implementation Toolkit The full REopt model allows for significantly more customization, including custom rate structures and greater load profile granularity, as well as complex stochastic outage modeling within a wider, more randomized set of resilience scenarios. It also allows for multiplesite analy sis, thermal and electric load analysis, and several additional functions. Read the entire page →
From page 71... ... Existing Microgrid Assessment Tools 71 the microgrid. DERCAM+ provides users with one optimal design option and an economic analysis. Read the entire page →
From page 72... ... 72 Airport Microgrid Implementation Toolkit Inputs Technoeconomic models generally require the load profiles of the facilities under assess ment. All three models allow for user input of custom load profiles and provide some builtin load profiles for model facilities. Read the entire page →
From page 73... ... Existing Microgrid Assessment Tools 73 Criteria DER-CAM+ HOMER REopt Built in technology models Photovoltaics (PV) , wind turbines, electric storage, flow batteries, heat pumps, solar thermal, CHP, internal combustion engines, fuel cells, gas turbines, hot water storage, cold water storage, electric vehicles, dispatchable heating and cooling, dispatchable energy conservation measures, alternative fuels as biomass or hydrogen Photovoltaics (PV) Read the entire page →
From page 74... ... 74 Airport Microgrid Implementation Toolkit HOMER does not perform a full dispatch optimization. Instead, HOMER runs a simula tion that uses a set of heuristics to determine the leastcost action for the system to take in each timestep. Read the entire page →
From page 75... ... Existing Microgrid Assessment Tools 75 the DERCAM+ graphical user interface provides users with several tabs of results. The sum mary tab includes a graphical breakdown of the optimal energy mix, a plot of annualized energy costs, and yearbyyear cash flows. Read the entire page →
From page 76... ... 76 Airport Microgrid Implementation Toolkit of REopt, run with the NREL REopt team, can be a follow-on to REopt Lite for inexperienced microgrid developers that need additional counsel. The full version can provide users a better understanding of more complex microgrid system design, operations, and economics for a campus or multi-user microgrid. Read the entire page →
From page 77... ... Existing Microgrid Assessment Tools 77 impact of intermittency from loads and generators, among other variables. These models are crucial for understanding how long-term changes (days to years) Read the entire page →
From page 78... ... 78 Airport Microgrid Implementation Toolkit Tool Overview and Description OpenDSS The Open Distribution System Simulator (OpenDSS) is a power system analysis tool for distribution system planning and analysis. Read the entire page →
From page 79... ... Existing Microgrid Assessment Tools 79 GridLAB-D GridLAB-D is a distribution system simulation tool developed by the US DOE Pacific Northwest National Laboratory (PNNL) Read the entire page →
From page 80... ... 80 Airport Microgrid Implementation Toolkit Simscape Electrical models are designed from the ground up using the full range of Simscape elements (logic elements, math operations, signal library, etc.) , while providing specific compo nent libraries for modeling and simulating electronic, mechatronic, and electrical power systems. Read the entire page →
From page 81... ... Existing Microgrid Assessment Tools 81 Support and documentation for PSCAD is available to the public on the PSCAD webpage in a "Knowledge Library." HVDC maintains a web portal, MyCentre, which serves as a central location for users and includes announcements, software, support, training videos, and reference material. Numerous tutorials, brochures, papers, notes, and users' guides are publicly available. Read the entire page →
From page 82... ... 82 Airport Microgrid Implementation Toolkit characteristics. Both models require the user to enter known values about circuit network (such as impedances) Read the entire page →
From page 83... ... Existing Microgrid Assessment Tools 83 and use. Both software programs require signal inputs to be entered manually at the same resolu tion as the solver timestep. Read the entire page →
From page 84... ... 84 Airport Microgrid Implementation Toolkit Findings Given the different genesis and solution methods of the tools, they have differing functional ities and uses within the system design phase. OpenDSS is appropriate for traditional power systems studies with large circuits (i.e., more than 100 nodes) Read the entire page →
From page 85... ... Existing Microgrid Assessment Tools 85 system. Using the agentbased modeling technique, several unique loads and DER models can be created and simulated testing the effects of different policy or economic environments on the microgrid. Read the entire page →
From page 86... ... 86 Airport Microgrid Implementation Toolkit sink in the design process. Fourth, all the software is desktop based, which comes with compat ibility issues and the chance of data loss. Read the entire page →
From page 87... ... Existing Microgrid Assessment Tools 87 Tool Model Type Description EMTP-RV92 Power System Analysis Simulation and analysis tool for electromagnetic, electromechanical and control system transients in multiphase electric power systems. Energy Surety Microgrid93 Technoeconomic Analysis Optimization software which comes as part of a larger microgrid package developed by Sandia National Lab. Read the entire page →
From page 88... ... 88 Airport Microgrid Implementation Toolkit Tool Model Type Description economic Analysis production, transportation and demand over both short and long-term analysis periods. Plexos104 Techno- Simulation software for estimating electricity, gas, and water PowerFactory105 Power System Analysis Robust power system analysis tool for network mapping, planning, and analysis at the bulk power, distribution system, and individual facility levels. Read the entire page →

From page 62...

... 62 Report Overview • This report summarizes the results of a survey of microgrid analysis tools as part of ACRP Project 1026, "Airport Microgrid Implementation Toolkit." • The objectives of the survey are to inform the development of the project team's microgrid toolkit and to create a resource for future airport microgrid project proponents. • The project team surveyed more than 30 tools and broadly grouped tools according to whether they are used for technoeconomic analysis or for power system analysis.