Solar Buildings in emerging economies present a strong potential of development.Architectural design of the envelope must be suited to the local climatic conditions to reduce as much energy consumption as possible.Then, building integrated solar technology (thermal and photovoltaic) has to be part of new designs.Energy saving design strategies on buildings start with basic but critical considerations such as orientation, envelopes material selection, day-lighting criteria, vegetation and solar control.A stronger energy efficient approach for indoor spaces is based on variable flow ventilation instead air conditioning for different periods of the year.Good results have been achieved when this is combined with a dynamic envelope such as a double fa(c)ade.Noise and dust control devises must be considered.In all cases, the target is to reduce energy consumption to its minimum without compromising indoor comfort.Building integrated photovoltaics can operate as an interconnected energy net."On site" energy systems present clear advantages on management, instant use, distribution and transportation of electricity.The large scale and extensive roofs of buildings such as storage warehouses, retail stores and maintenance facilities are generally suitable for integrated PV systems combined with natural illumination.It is possible to install reflecting elements into a buildings design that increase the amount of radiation on cells, improving their performance.Initial research on this technology has been done, but the commercial offer of such PV integrated roofing systems is limited in American markets.