ZEMCH 2019 International Conference Proceedings April.2020 | Page 298
4.
Conclussions
This work determined that a real‐estate house in Concepcion, Chile, can have a substantial
integrated self‐supply energy with passive strategies and active solar collection implemented jointly.
The dwelling studied can achieve an annual balance for its own demands and in addition can feed
energy to the urban grid or for other uses, such as electric car. Passive measures, can reduce to one‐
third the typical energy demand of a single‐family home. On the other hand, when orientation and the
consequent reduction in passive use are analysed, it is seen that the reduction of energy demands does
not exceed 18%. It has been estimated that is possible to produce up to 174% of residential
consumptions, with only BIPV technology; and up to two and a half times the total of demand if BIPV
+ BIPVTa + BIPVTw technologies are apply together. It has been estimated that to reach the Powerhouse
standard, the embodied energy resultant in the construction and demolition processes must not exceed
4500 Gj.
However, when the production and consumption curves are regarded jointly, a marked seasonal
imbalance is observed. In summer, electrical surpluses exceed domestic demand by up to twelve times,
situation in which a house of these characteristics can function as energy supplier to the city, but this
situation can impact the electrical grid. So, it is necessary to complement this alternative as a strategy
to alleviate hydroelectric deficits when there is maximum production in summer, a common situation
in this geographical context, or implementing storage capability like domestic batteries or provision to
the local district. Also, a house with solar passive capture that allows thermal comfort, can reduce the
heating demand and achieving a significant incidence of natural light. In relation to the architectural
design, the solar collectors denote a new roof texture that by being repetitive, it can lead to a new
material language, as well as inclination of dwellings shape to the sun path can bring a particular urban
fabric. Then, plus‐energy and power house approaches in residential sector can be reach to promote
home autonomy and city sustainability, provoking a new architectural landscape.
Author Contributions: E. Z. developed the conceptual analysis, the methodology and the writing; R G‐A and P W.
reviewed the pertinence, methodology, tools and writing.
Funding: This research has been partially supported by the Research Project of the University of Cuenca (DIUC):
ʺCALIBRATION OF F‐CHART MODEL FOR THERMAL SOLAR COLLECTORS WITH PARAMETRIZATION
AND VALIDATION IN ACCORDANCE WITH TYPICAL PROVISIONS FOR ARCHITECTURAL
INTEGRATION IN ANDEAN EQUATORIAL CLIMATESʺ.
Conflicts of Interest: The authors declare no conflict of interest
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