3.1 COMPARISON BETWEEN COUNTRIES1) Price of installationUNITED KINGDOMIn United Kingdom, an average household usually needed 3kW or 4kW amount of solar system installed to produce enough electricity to cover their total energy usage. If the household is more than 3 people they should prepare more than euro 5,000 for the cost.Usually it is not recommended for residential properties to install solar system that is larger than 4kW because it needed bigger space of roof. The cost of solar panels has drop in recent years due to better technology and cheaper mass market production. 70% on the cost of a solar panel can be saved if it purchase now rather than purchased back in 2010. MALAYSIA FiT encourages the adoption of renewable energy such as solar energy by households. This require house owners to sell excess electricity generated from their homes to TNB (Tenaga Nasional Berhad), for example. House owner could get between RM1.20 to RM1.23 for every 1 kWh. Besides, homes with solar photovoltaic (PV) would obtain an additional 26 cents. Based on studies, a double storey house residential with 4kWp Solar Photovoltaic System(roof integrated) installed which cost up to RM50,000 in 2013, is expected to have 12.24% rate of ROI. If house owner could generate as much as 4kW peak of electricity from their houses, they can possibly f earn RM700 per month.Although Malaysia is the world’s third largest photovoltaic modules producer, solar technology is not widely adopted here. One of reason it is not adopted is because the cost of installing photovoltaic (PV) systems in Malaysia is too expensive, even though the cost is falling at a rate of more than 10% every year. In 2005 the cost of photovoltaic (PV) system per kW peak was amounted to RM31,410, falling to amount of RM24,970 in 2007, and to RM20,439 in 2009. Today, the cost has reduced to amount of RM15,000 per kW peak but still at a rate that still unaffordable to most Malaysians. 2)Types of solar panels Types Of Solar PanelsEfficiency-RateAdvantagesDisadvantagesMonocrystalline ~20%Have the highest efficiency ratesThe most expensivePolycrystalline ~15%Process used to make polycrystalline silicon is simpler and cost lessSensitive to high temperatures and lower lifespan Thin-Film: Amorphous Silicon Solar Panels ~7-10% lower costs, easy to produce & flexibleshorter warranties & lifespanConcentrated PV Cell ~41%Very high performance & efficiency rateSolar tracker & cooling system needed (to reach high efficiency rate) Malaysia Solar Cell TypeAdvantagesDisadvantages monocrystallineProduce up to four times the amount of electricity as thin-film solar panelsThe entire circuit can break down if the solar panel is covered with shadepolycrytallineTend to have slightly lower heat tolerance than monocrystalline solar panelsNeed to cover a larger surface to outputThin-FilmEffective in hotter climateMay require more number of circuit combiners and fuses for DC writing
CLIMATEMALAYSIAMalaysia lies in the tropical region between 1o N and 7o N, and 100o E and 119o. Malaysia’s weather condition in is very suitable for photovoltaic (PV) implementation, this is because the weather condition is almost predictable and the sunlight is available for more than ten hours daily with almost six hours of direct sunlight.Commonly in Malaysia, photovoltaic panels were installed fix to the building either on the roof this installation considered as static system. These static systems available maximum only at certain time during daytime.UNITED KINGDOMUsually there is at least 8 hours of sunlight a day in the United Kingdom. In the summer months it increase to 16 hours of light. Solar panels are well suited to the British climate as it is temperate, which there is very little extreme weather. If the temperature goes well above 30MH the solar panel could suffer,as the panels can overheat. Luckily we rarely see temperatures above 30MH, in the United Kingdom. The positive factor in the efficiency of solar panels can also caused by the frequent rainfall in the UK. By keeping the solar panel clean of dust and debris making them more efficient even the rain does not limit the output. Overcast and cloudy is the only weather condition that could negatively affect the solar panel output frequent in UK. It is harder for the sunlight to reach the surface of your solar panels when there are a lot of cloud in the sky. Solar panels can still produce around a third of their usual output using the daylight that does reach them even on overcast days.