Cost reduction trends in Solar Water Heating Systems
Due to technological feasibility and
economic viability among various other applications, Solar Water Heating
systems are one of the most popular systems of utilizing solar energy as the
energy source. There exist numerous low-temperature applications for various
end-uses, such as residential hot water production, space heating/cooling,
commercial buildings, hotels, schools, swimming pool heating, industrial
process heat, solar-assisted district heating, desalination, and crop drying.
Solar Water Heating technologies are already well developed and can be easily
marketed at considerably low prices. From the energy utilization perspective,
conducted an energy analysis based on ‘‘Three Procedure Theory’’ in which three
sub-procedures, such as conversion procedure, utilization procedure, and
recycling procedure are closely related to each other. To provide a good
assessment of saving the cost of the system and to increase the efficiency of
the domestic scale Solar Water Heaters, an energy analysis of the system was
also conducted. This helps to figure out energy losses and identify the most
inefficient component of any Solar Water Heating system.
Apart from the domestic uses, hot water and
pressurized steam are used for industrial applications. The cost of the industrial
Solar Water Heating system varies depending on the thermal capacity, storage
convenience, and pressure requirement for the system. Another growing market
for Solar Water Heater is the commercial building sector. Government have
introduced many favorable policies to promote solar units usage for common
household purposes, such as water heating using solar energy, space heating,
and cooling applications. To meet such dependencies, solar energy driven
products need to be manufactured at a proportionate rate. However, adopted
policies have the goal to achieve 20–30% of the potential uses in future. Total
cost of Solar Water Heating system which includes the costs associated with
manufacturing to the installation stage is influenced by various factors, such
as costs related to engineering expertise, labor for installation, cost of
solar thermal collectors, structural costs of mounting racks, plumbing
supplies, pumps, data logger, controller, and other space-related costs.
Government rebate subsidies also have an impact on the market penetration of
Solar Water Heating systems. According to the US Energy Policy: 2005 (Section
1335), tax credit amounting to 30% of the total purchase amount of qualified
Solar Water Heaters. This Credit also applies to cover associated costs with
equipment and cost of labour related to installation, piping, and wiring.
Solar Water Heater uses fuel oil and
natural gas for solar radiation mainly due to a high gas price. As an
alternative approach, this cost-effective design could provide advantages of
avoiding additional tanks and piping for the preheating system of flat-plate
collectors. The use of evacuated-tube collectors made the system possible with
a recirculation loop of Solar Water Heater at the roof of the building. Adjusting
the current framework with the reheating of water warming framework could be
yet another elective method to execute financially savvy retrofits of Solar
Water Heating frameworks on the existing business building. This moderation
could, in turn, increase the market penetration of this type of Solar Water Heating system. One of the imperative techniques used globally in solar thermal
applications is solar water heating. As far as establishment uses and vitality
cost over the aggregate existence of the framework, solar water heating
innovation has turned out to be financially savvy for a few local and modern
applications. The innovative practicability of these frameworks has for quite
some time been perceived and is by and by utilized in business segments of
numerous nations.
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