Honeybee connects Grasshopper3D to EnergyPlus, Radiance, Daysim and OpenStudio for building energy and daylighting simulation.The Honeybee project intends to make many of the features of these simulation tools available in a parametric way. You need to have Ladybug installed in order to run Honeybee.

RETScreen is a Clean Energy Management Software system for energy efficiency, renewable energy and cogeneration project feasibility analysis as well as ongoing energy performance analysis. RETScreen empowers professionals and decision-makers to rapidly identify, assess and optimize the technical and financial viability of potential clean energy projects. This decision intelligence software platform also allows managers to easily measure and verify the actual performance of their facilities and helps find additional energy savings/production opportunities.

Ground Loop Design (GLD) is a software tool for designing and optimizing ground source heat pump systems.

UcanPsi is a gratis software for calculating 2D and 3D thermal bridges. U-values for windows and doors can also be calculated. Heat flows, temperatures, isotherms and isoflows can be obtained. The program is validated according to ISO 10211 and ISO 10077.

Green Building is a model-based energy simulation software based on Modelica standard for building energy systems. The Green Building model library includes energy system components like buildings, usage behavior, heat/power/cooling facilities, grids and e-mobility. New components can be created easily. Calculations allow precise and fast results for planners, investors, energy provider and municipality.

Calculates temperature distributions, heat flows and (optionally) vapor diffusion flows in building structures - particularly those with thermal heat bridges

ESBO (Early Stage Building Optimization) is a simulation tool for building design optimization based on EQUA’s building performance software IDA Indoor Climate and Energy (IDA ICE).

FineGREEN is a BIM simulation environment that combines the Building Information Modeling power and user friendliness of the 3D Building interface, with the reliability and accuracy of the EnergyPlus(R) calculation engine. FineGREEN embeds the latest version of EnergyPlus and allows the easy determination of the best energy-efficient building design solutions from the initial architectural concept through the HVAC design and the entire project completion.

Designed for Commercial Real Estate investors and subsequent stakeholders, arbn estates provides a singular source for managing energy performance and MEES compliance across large and diverse property portfolios. A database for EPC’s and fully integrated with our arbn consult platform, arbn estates provides a single platform for managing energy performance and MEES compliance across large and diverse property portfolios. arbn estates intelligently centralizes portfolio wide Commercial Real Estate data sets for continuous monitoring.

EDAPT (Energy Design Assistance Program Tracker) is a design-assistance project and program management and reporting portal intended for managers of large portfolios of energy-efficiency projects that use energy modeling. Example users include utilities, ESCOs, large portfolio owners, and building certification programs.