5 Conclusion
This paper takes the assessment of the low carbonization of clean energy
use in rural residential buildings as the research direction, constructs
a conceptual framework for low carbonization assessment and an
evaluation index system, selects a rural residential building as a
research case of the evaluation index system, and applies the index
system constructed in the previous paper to assess its low
carbonization. The main findings are as follows.
(1) From the perspective of the assessment indicators for the low
carbonization of clean energy use in rural residential buildings, the
indicator system involves a number of aspects, which have a great deal
to do with envelope structure and economic factors in addition to energy
utilization, and also have an influence on layout design, building
materials and behavioral habits. The weighting of the primary indicators
is set at 36.4% for energy utilization, 24.5% for envelope structure,
4.1% for layout design, 5.8% for building materials, 10.2% for
behavioral habits and 19.5% for economic factors.
(2) From the case studies, the main reason for the higher level of
decarbonization of clean energy use in retrofitted rural residential
buildings is the increased use of renewable energy sources such as
electricity, biomass and solar energy through both energy utilization
and building envelope modifications. In terms of key influencing
factors, ”clean energy utilization”, ”share of electricity consumption”,
”external wall insulation system” and ”window performance ” are key
influencing factors for the level of decarbonization of clean energy use
in a rural residential building.