Talk about the sun and the planets. Someone will respond, “But what about the rain?” when people talk about solar system malaysia. That’s a great question. The weather in Malaysia is like a famous person: it changes from hot sun to heavy rain in the tropics faster than you can say “umbrella, please!”
The good news is that Malaysia gets 4 to 6 hours of direct sunlight every day, even when it rains. That’s good news for solar panels, which perform best when it’s light out, not when it’s hot. In fact, temperatures above 35°C can make panels less efficient. Panels like the sun and a little wind, but not a roof that is too hot. Ironically, rain that cools down the panels is helpful for them since a little shower washes away dust and bird droppings, which keeps the cells ready to soak up as much sunlight as they can.
Are there dark clouds or rain that won’t stop? Yes, these do make things less fun. When there are a lot of clouds, solar output might reduce by 60% to 90%. Panels still give you power, but on monsoon days, don’t expect to see fireworks in your output graph. But don’t worry too much; Malaysia gets between 1,400 and 1,900 kWh/m² of sunlight each year. This puts us in a sunny league, better than a lot of European countries where solar energy is doing well (and, to be honest, where the sun often forgets to set an alarm).
Let’s chat about the fog. There is a lot of haze over the peninsula that might block sunlight and limit output by a few percent every now and again. The effect is minor unless you reside very next to a peat fire.
Mr. Tan from Melaka noticed that his bills were lower in January. He looked at his solar tracking software and noted that production went down every time it rained. Not a dealbreaker, but a gentle warning that you should expect less juice on stormy afternoons.
The weather in Malaysia might be bad, but washing the panels often keeps them in good shape. If you set your expectations right, you should get good returns over the course of the year. For example, you can expect high yields during the dry months and low yields during the monsoon. The weather has its own job to do, just like a friend who is a little grumpy but is nice in the end. People who buy solar panels here learn to live with the weather instead of wishing it would go away. Isn’t half of the fun getting used to the local scene?
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