29/11/20 (FINAL DRAFT) Angelo's Reader's Response on Sustainable Technologies
According to
the Construction Climate Challenge (CCC) (2019), buildings with green
technology are “more energy-efficient and sustainable.” The webpage states that
"low energy houses, self-powered and zero-energy building designs"
powered by wind turbines are being applied in developments. These designs also
incorporate green technologies such as solar power which reduce residential
heating loads through absorption of solar radiation. On the other hand, to
reduce cooling loads, buildings utilise cool roofs and Electrochromic Smart
Glass to block and reflect heat and sunlight away. CCC also sheds light on how
sustainability concerns are addressed. Wastage of resources is reduced by
integrating smart appliances and water efficiency technologies into buildings.
Biodegradable materials used could then be sourced sustainably whilst adhering
to green safety standards, which mitigate detrimental effects on the
environment. To summarise, CCC shares that by incorporating green technologies,
a symbiotic relationship between the environment and buildings can be
achieved.
This article
highlights sustainable technologies currently being used in the construction
industry. However, it does not do a good job of explaining the limitations of
said technologies.
To begin,
CCC needs to address the geographical disadvantages of cool roofs. The article
only states how cool roofs reduce building cooling loads through the reduction
of heat absorption. This spreads misinformation as cool roofs can be
counterproductive in temperate climates. CCC should have been more explicit in
explaining how cool roofs are better suited for buildings in warmer climates.
Feraro (2017) states that since cools roof work on the premise of reflecting
solar radiation, the inclusion of one on a building located in a temperate
climate works against energy-saving measures. The heating load of a building
during winter is increased as a result of reduced absorption of solar
radiation. The failure of CCC in explaining the drawbacks of cool roofs in
temperate climates could lead to a misinformed homeowner or developer footing
more for heating over the potential savings of cooling.
The next
problem is that CCC does not factor in the noise pollution that usually results
from self-powered or zero-energy buildings. The article mentions how wind
turbines are utilised by buildings to power their energy demands. This sounds
good on paper; however, wind turbines are often the harbinger of noise
pollution, often to the detriment to a building’s occupants. Clean Energy Ideas
(2019) shared that wind turbines often emit a “deep, bass-like hum.” The noise
produced can be heard from occupants of a nearby building or the building
itself. Noise pollution does not bring about negative health effects
immediately, but rather manifests itself in the form of stress and sleep
deprivation over a prolonged timeframe. In neglecting to address noise pollution,
CCC could cause discomfort for readers who move to areas where wind turbines
are installed in the vicinity.
The last
example is that CCC contradicts itself in its push for the use of solar power.
The article touches on using biodegradable materials whilst adhering to “green
safety standards.” The statement above was made by CCC without consideration
for the fact that solar photovoltaic panels themselves are made from harmful
materials. Ecavo (2016) states that “among the compounds found in solar panels
is cadmium and lead, very toxic materials.” This is dangerous as in
countries without proper environmental regulations such as China and Malaysia,
over 50% of photovoltaic panels are irresponsibly disposed of, resulting in
pollution of resources such as water and soil. CCC needs to be clear in its
website on this aspect of solar power, otherwise, the actions of irresponsible
nations will result in photovoltaic usage being counterproductive.
Although CCC
does a good job of introducing sustainable technologies, it needs to be more
transparent in explaining the limitations of said technologies in order to present
itself as a credible source of information.
(621
words)
References
Clean Energy Ideas. (2019). The Impacts of Wind Turbines. https://www.clean-energy-ideas.com/wind/wind-turbines/the-impacts-of-wind-turbines/
Construction
Climate Challenge. (2019). Top Sustainable Technologies in Green Construction.
https://constructionclimatechallenge.com/2019/02/19/top-sustainable-technologies-in-green-construction/
Ecavo. (2017). Solar Energy Disadvantages. https://ecavo.com/solar-energy-disadvantages/
Ferraro, R. (2017). The advantages and disadvantages of cool roofing. http://www.roofknowledge.org/advantages-disadvantages-cool-roofing/.
Thanks very much for the fine revision, Angelo.
ReplyDelete