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Simulation tools

TRNSYS - (TRaNsient SYstem Simulation Program) is an energy simulation program whose modular system approach makes it one of the most flexible tools available. It includes a graphical interface, a simulation engine, and a library of components that range from various building models to standard HVAC equipment to renewable energy and emerging technologies. TRNSYS also includes a method for creating new components that do not exist in the standard package. This simulation package has been used for more than 25 years for HVAC analysis and sizing, multizone airflow analyses, electric power simulation, solar design, building thermal performance, analysis of control schemes, etc. A special library of components is available to simulate renewable energy-based power generation: PV systems, batteries, wind turbines, fuel cells.

INSEL - is software for planning, monitoring and visualising energy systems. For this purpose INSEL provides state-of-the-art functions in the form of blocks that can be linked to a concrete solution, for example for simulating meteorological data, electrical and thermal energy components etc.

HOMER - is a computer model that simplifies the task of evaluating design options for both off-grid and grid-connected power systems for remote, stand-alone, and distributed generation (DG) applications.

Economical evaluation tools

greenius - bei greenius handelt es sich um eine sehr leistungsfähige Simulationsumgebung zur Berechnung und Analyse regenerativer Kraftwerksprojekte wie solarthermischer Parabolrinnen-Kraftwerke, Photovoltaikanlagen, Windparks, Brennstoffzellen oder Dish/Stirling-Systemen (german language only).

SOLinvest - umfangreiche Software zur Planung und Wirtschaftlichkeitsberechnung von PV-Anlagen. Beinhaltet eine Solar-Strahlungskarte des Deutschen Wetterdienstes, berücksichtigt verschiedene Kredite der KfW und die Konditionen des aktuellen EEG. Die Ergebnisse können als Tabelle oder als 3D-Diagramme ausgegeben werden (german language only).

RETScreen® - RETScreen® International is a clean energy awareness, decision-support and capacity building tool. The core of the tool consists of a standardised and integrated clean energy project analysis software that can be used world-wide to evaluate the energy production, life-cycle costs and greenhouse gas emission reductions for various types of energy efficient and renewable energy technologies (RETs).

PV industry related tools

APOS photovoltaic StatLab - APOS photovoltaic StatLab is a software tool for the statistical analysis and the quality assessment of photovoltaic (PV) modules. It makes advanced statistical methodology available for non-statisticians. Based on joined research of RWTH Aachen University and TÜV Rheinland Group, it calculates acceptance sampling plans to assess the quality of the power output of modules. Standard approaches as well as innovative procedures taking into account flash data tables are implemented. It provides easy data handling and data analysis of flash data and lab (control) measurements.

PV Cost Simulation Tool - Photovoltaic cost simulation tool is a virtual fab where every manufacturing steps, equipment and materials can de defined. Material and equipment suppliers can simulate their own products and measure the impact in a virtual process flow. Innovative manufacturing solutions can be modeled and instantly simulate the consequences on cost and return on investment.

Photovoltaic systems - analysis and planning

PV F-CHART - is a comprehensive photovoltaic system analysis and design program. The program provides monthly-average performance estimates for each hour of the day. The calculations are based upon methods developed at the University of Wisconsin which use solar radiation utilizability to account for statistical variation of radiation and the load.

System Types: utility interface systems, battery storage system, stand-alone aystems.
Tracking Options: fixed, 1 and 2-axis tracking, concentrators.
Features: Weather data for over 300 locations, weather data can be added, extremely fast execution, hourly load profiles for each month, statistical load variation, buy/sell cost differences, time-of-day rates for buy/sell, life-cycle economics with cash flow, monthly parameter variation, english and SI units, graphical and numerical output.

Laplace System - Company Laplace System offers diverse high-tech solar and wind related software tools. The most known product is photovoltaic simulation software "Solar Pro". It is also suitable for exact shadowing analysis. Other tools are "Solar Link", "Kaze Pro" and "Wind Link" for wind energy systems.

PV*SOL - is a programme for the design, planning and simulation of photovoltaic systems. The calculations are based on an hourly data balance and results can be presented in graphic form, in a detailed project report or in a results summary. Overview of product features:

Utility grid connected and stand-alone systems.
Any number of panels set up at varying angles.
Shading from the horizon and other objects (houses, trees, etc).
Use of various makes of PV modules and inverters within a system.
Monitoring of PV modules and inverters when running under full capacity.
Module, string and system inverters manufacturer and weather databases.
Determination of electricity consumption through profiles.
Full flexibility in inputting charge rates for electricity use and supply to utility.
Detailed information on power production/consumption, costs and financial return.
Economic efficiency calculation.

Pvcad - is a computer tool for fast and efficient planning of PV facades. Only german version available.

PVSYST - is a PC software package for the study, sizing, simulation  and data analysis of complete PV systems. It is suitable for grid-connected, stand-alone and DC-grid (public transport) systems, and offers an extensive meteorological and PV-components database. This software is oriented towards architects, engineers, and researchers, and holds very helpful tools for education.

PV Professional - is software tool for planning of photovoltaic systems on flat or sloped roofs (german language).

Kerychip - offers photovoltaic sizing calculations programs for stand alone and grid-connected systems. Demo versions available for download.

Tetti FV - Photovoltaic software for simulation and design of grid connected systems (italian language).

Monitoring and control tools

Meteocontrol - safer´Sun is a tool for local and/or remote monitoring of photovoltaic systems.

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Webmaster's choice - interesting local and remote monitoring tool.

SPYCE - is a result of EU PVSAT project. SPYCE (Satellite Photovoltaic Yield Control & Evaluation) is a sattelite based tool for remote monitoring and solar yield analysis of photovoltaic systems.

SPYCE (Satellite Photovoltaic Yield Control & Evaluation) is based on more than ten years of research by well-known European institutions. The SPYCE methodology was developed by the EU project PVSAT. Some of SPYCE's features are: Automatic failure detection and alarm dramatically minimizes any down time. Failures may be detected before expiry of warranty. No on-site radiation measurements are required. The SPYCE website allows access to the system's yields, reference values and analyses at any time. SPYCE is based on the latest EU research results. Data from the latest generation of weather satellites is employed. Data flow and the web portal are adaptable to the requirements of different manufacturers of PV systems and inverters. SPYCE is a service designed and provided by METEOTEST, a Swiss company, internationally known for its meteorological expertise. METEOTEST is independent of PV system manufacturers.

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Webmaster's choice - interesting new monitoring tool.

Software tools for site analysis

ECOTECT - is an industry leading building analysis program that allows designers to work easily in 3D and apply all the tools neccesary for an energy efficient and sustainable future.

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Shadow Analyser - Shadow Analyzer is an advanced parametric CAD tool for professionals in the area of Solar Energy Engineering and Architecture.

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Shadows - Shadows is a program used to design sundials and astrolabes and it is very useful also in solar energy engineering. Key points of Shadows:

Free of charge in its entry level
Calculates and prints the drawings at real scale
Simulates, displays and animates the shadow of the style
Exports drawings as BMP, JPG, EMF and DXF (AutoCAD)
Offers complete ephemeris of the Sun and draws the Solar Diagram
Supports plane sundials with polar style of any orientation and reclination, analemmatic sundials, cylindrical and bifilar sundials.

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Webmaster's choice - very useful tool for drawing sun path diagrams and shading analysis.

GOSOL - Das solar + energetische Simulationsprogramm für städtebauliche Planungen.

Comprehensive tool intended for detailed site analysis, included building shape and vegetation shading analysis. Suitable for urban planning and detailed architecture studies (german language only).

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METEONORM - Global Meteorological Database for Solar Energy and Applied Meteorology. METEONORM is a comprehensive climatological database for solar energy applications: a meteorological database containing comprehensive climatological data for solar engineering applications at all points of the globe between the polar circles; a computer program for climatological calculations; a data source for engineering design programs in the passive, active and photovoltaic application of solar energy with comprehensive data interfaces; a standardization tool permitting developers and users of engineering design programs access to a comprehensive, uniform data basis.

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Panorama master - with "Panorama master" you can make exact matched set of photos - base for panorama picture (see also "Horizon" below).

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Horizon - software simulates sun path diagrams for arbitrary latitude.

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Sombrero - A PC-tool to calculate shadows on arbitrarily oriented surfaces. For both, active use of solar energy (domestic hot water, photovoitaics) as well as for passive solar architecture, shading or lighting of planes plays an important role SOMBRERO provides quantitative results for the shading of collectors or windows by buildings, trees, overhangs or the horizon.

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Web sites with on-line tools

PV Potencial Estimation Utility for estimation of electricity generated for predefined location (country and city) is available on IES web pages. Calculations for european teritory, Mediteranian region and Africa are available.

The tool offers many different calculation options:

PV potencial with given inclination and orientation
Calculation of optimal inclination for given orientation
Calculation of optimal inclination and orientation

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Logiciel CalSol Estimation de l'énergie solaire disponible pour une application énergétique

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Seneca Software & Solar, Inc. - Wiresizing spreadsheet and some other tools available. Many links to useful open source projects also available.

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