Solar
energy is one of the renewable energies that are readily available in the world
and of course in Malaysia, as our country is located at the strategic location
– the equator. The sun produces an abundant source of clean, renewable energy.
This can be converted into electricity using solar photovoltaic technology,
usually referred to as ‘solar PV’. At the moment, the best mechanism in the
world to drive the development of solar energy in the world is Feed-in Tariff
(FiT).
Understanding Solar PV System
A solar PV system basically consists of four
components:
- The PV Array
- The Inverter
- Generation Meter
- Performance Monitoring (optional)
How does Solar PV work?
The component in a solar photovoltaic (PV) system that
generates electricity is the photovoltaic module. PV modules generate
electricity when they are exposed to sunlight. The photovoltaic effect is the
basic electrical process through which a solar cell converts sunlight into
electricity.
*Note: The FiAH/owner of the house is not using
the electricity generated from the solar panel. All electricity generated will
go into the grid.
Types of Solar PV module
A)
Monocrystalline – made from wafers of
a single silicon crystalline ingot, mono-Si.
B)
Polycrystalline – made from wafers of
multicrystalline ingots, poly-Si
C)
Thin Film – made from a thin deposition of
semiconductor material sprayed onto the glass. The commonly used materials are
amorphous silicon (A-Si), cadmium telluride (CdTe), Cadmium Iron Selenide (CIS)
or Copper Indium Gallium Selenide (CIGS).
Can
solar PV work for you?
Before
you invest in a solar PV system you need to check the following:
-
Is the roof tilting less than 15
degrees?
Solar PV modules need maximum exposure to the sun, and
this means that the tilt should not be more than 15 degrees for PV application
in countries lying along the equator as PV on façade loses nearly half of its
potential energy yield.
-
Will trees or buildings cast a shadow
over the solar PV modules?
If part of a PV module is in the shade, then the
amount of electricity generated will be reduced.
-
Is your roof structurally sound?
It
will need to take the extra weight of the solar PV modules plus the mounting
structure.
Income
and Savings
Before
installation, you are advised to register and secure the feed-in tariff quota.
Under the Feed-in Tariff Mechanism, your Distribution Licensee will pay you for
every kWh of electricity your system produces and supplies to the grid.
Feed-in
Tariff rate depends on the capacity of your PV system and the year when the
system achieves commercial operation. Different capacity has different FiT
rate. Besides receiving the basic FiT rate, you may receive bonus rate if your system
satisfies certain bonus criteria. Your monthly income will depend upon the type
and capacity of your system. In Malaysia, each kW of Solar PV will generate an
average of 100kWh (kilowatt hour) of energy a month.
Example:
Code
|
Item
|
Amount
|
[A]
|
Total installed capacity
|
4kW
|
[B]
|
Average monthly energy
generation
|
400kWh a month
|
[C]
|
Basic FiT rate for 2013 +
bonus rate (i)
|
RM1.1316 + RM0.2392 = RM
1.3708
|
[D]
|
Monthly FiT Income ([B] x
[C])
|
RM548.32 a month
|
Annual
FiT income ([D] x 12 months
|
RM6579.84
|
You
should also ensure that your chosen PV Service Provider has engineers with
certificate in solar photovoltaic system design from any institution recognized
by SEDA Malaysia.
Cost
and Payback
The
cost of a solar PV system depends on the size of the system, the type of PV
technology and how easy it is to install at a particular site. According to the
current market price (September 2013), complete installation cost for one
kilowatt (kW) solar PV system would range from RM8,000 to RM10,000 for
residential. Below is the illustration of simple payback for a 4kW PV system that
will generate an average of 400kWh a month (with no loan from bank):
Code
|
Item
|
Amount
|
[A]
|
Annual FiT income (for rate
of RM1.3708 per kWh)
|
RM6579.84
|
[B]
|
Installation cost
|
RM10,000 x 4kW
|
[C]
|
Return on Investment Period
[(B)/(A)]
|
RM40,000/RM6579.84 = 6.08
years.
|
Most
systems require little or no maintenance although it is worth cleaning the PV
modules once a year. PV modules that are covered with dirt will reduce the
system’s performance.
Installation
You
need to contact a PV service provider and get the service provider to do the
installation and help you to apply for the Feed-in Approval. Directory for PV
service providers can be obtained from www.seda.gov.my
> Directory > click on RE Industry Directory. There are over 100 PV
service providers in Malaysia ready to help you. Be sure to get a few
quotations for the PV system for price comparison. Look into their past
projects and past experiences. Proven track record, accountability and
reliability are very important indicators to ensure the quality and durability
of the PV system installation.
Eligibility
If
you are interested to apply for Feed-in Tariff, there are a few criteria for
the individuals:
1)
Malaysian citizen aged 21 years and
above
2)
Ownership of the landed property
(evidence must be provided to show the relationship between leasor and leasee).
3)
Each individual is limited to two
applications
4)
Each application shall not exceed
12kW installation capacity
5)
Each application is to have different
address.
(Complete
eligible criteria can be found in www.seda.gov.my
under Feed-in Tariff > How to become a Feed-in Approval Holder > Solar PV
installations < 72kW).
Thank you for sharing valuable information.
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