<html> Dear Sirs: I´m a PhD student in the field of energy efficiency in buildings. My work is to study how we can improve the performances of bioclimatic techniques with automation. First I must study its impact with a simulator. So I’m trying to choose the best one. ESP-r seems to be a good choice but I have some doubts. The first one is about the Windows version. It has the same capabilities of the Linux version? Then, what is your opinion about implement control strategies in ESP-r? It is easy and powerful or it’s better to use another program (like TRNSYS, for example)? It is easy to create control routines in ESP-r (it has a specific language?)?   The simulation of bioclimatic techniques like Trombe walls, buried pipes, double facades, solar shadings, … will be a hard job to do with ESP-r? Then I must simulate their control… Please give me an answer as soon as possible, because I must choose a simulator as quickly as possible. Best regards, Paulo Tavares ------------------------------------------------------------------------------------------------------------------------------------------------------------ Paulo Filipe Tavares, Assistente (Assistant) IPC - Instituto Politécnico de Coimbra (Polytechnic Institute of Coimbra) ISEC - Instituto Superior de Engenharia de Coimbra Departamento de Electrotecnia (Electrical Department) Rua Pedro Nunes - Quinta da Nora 3030-199 COIMBRA Telefone: +351 239 790 200 (geral) Fax: +351 239 790 321 Email: ptavares@isec.pt <a href="http://www.isec.pt/" eudora="autourl">http://www.isec.pt </a></html>