Passive solar design is based on the following five principles that optimize the use of solar energy for heating and cooling the living space:

 Building orientation towards true south (in the northern hemisphere)
 Properly placed, energy efficient windows
 Calculated roof overhangs
 Thermal mass for energy storage
 Thermal efficiency and insulat...

Do you know any good and reliable software for st plant planning? what is your opinion about it/them?
 
Could you list all the software you know, please?

Do you know any good and reliable software for PV plant planning? what is your opinion about it/them?

 

Could you list all the software you know, please?

What is the best way to help a system when there is not any solar radiation to still produce heating or cooling (e.g. during the night or in some winter days)?

Do you know commercial absorption chillers between 10kW and 20kW using hot source between 70º-100ºC ?

There ae several absortions chillers:

 

Rotartica: 5 kW

Climatwell: 10 kW

Phonix: 5 kw

 

 

What is your opinion about the technical and economical viability of solar tri-generation systems implemented in single houses, based in PV and thermal solar collectors and absorption chillers for heating, cooling and domestic hot water?
What are the main technical difficulties?

¿Crees que el uso de energías renovables (biomasa, solar…) puede ser interesante y aplicable en agricultura y ganadería? ¿Has tenido alguna experiencia en su uso?

Do you think that the use of renewable energies (biomass, photovoltaic, thermal..) in crop and livestock farming can be useful and interesting? Do you have any experience on its use?

Quali sono le necessità da affrontare per riuscire a migliorare la diffusione di energie rinnovabili nel mercato?

What are the main barriers to the diffusion of Renewable Energy Sources in buildings? How do you think it is possible to overcome those barriers?