Since EcoDesigner STAR is a new product featuring several industry first solutions, several users find it difficult to provide the proper input for the calculations at first. Faulty input yields faulty results every time, therefore GSHQ helps new users calibrate their first energy models to assure standard compliant output accuracy. Please send your pla-s to GSHQ Technical Support for assistance.
Miklos Sved, Product Manager.
pallsopp42 wrote:In my opinion, this happens because EcoDesigner has a fundamental deficiency that I brought to the attention of GRAPHISOFT in June of 2013, but nothing was done to correct it.
EcoDesigner and EcoDesigner Star also seem to be over-estimating energy consumption. For a project in Phoenix, Arizona, we have R-35 wall and roof constructions with low solar absorptance external cladding materials, high efficiency windows and so on. Yet EcoDesigner way over estimates energy consumption per unit area per annum when compared to an ACTUAL building with R-Values are far less than in our building model. This "test building" has had its energy consumption monitored (for two occupants) for the past 5 years.