Recently, an American professional in the solar energy industry wrote an article about rooftop solar panel installation. It briefly addresses several common problems and concerns encountered by rooftop solar panel installers. This article may offer some insights and is worth reading.
"It's obvious that solar panels don't work perfectly in all situations. Sometimes, homeowners need to do their homework."
Many people are pleasantly surprised by the significant drop in the cost of solar photovoltaic power generation. When it comes to renewable energy, overly enthusiastic homeowners' environmental awareness can lead them to pursue solar power beyond reality. In fact, improperly installed solar cells are pointless.
So, what do you need to know to make a solar power system work?
Able to receive sunlight
Solar energy advocates often claim that solar cells can generate electricity even on cloudy days. That's true; they can. However, the amount of electricity generated will be significantly reduced. On cloudy or rainy days, it's estimated that photovoltaic power generation can decrease by 50% to 90%.
Therefore, you first need to ensure that the solar panels are installed in a location that provides at least four hours of direct sunlight. To put it another way, the panels don't necessarily have to face south. In fact, recent research has found that west-facing panels are better, not because they generate more electricity, but because they can still generate electricity during the peak electricity demand periods of the afternoon or evening.
Electricity price and subsidies
Whether installing solar panels is suitable depends not only on the cost of the panels and the amount of electricity they can generate, but also on the current retail price of electricity. If electricity prices are high in your area, then installing solar panels to utilize some solar energy is worthwhile and can save you a considerable amount of money.
Similarly, government subsidies and profits from selling solar power can both influence the economic viability of installing solar power.
What else can you do with this money?
Solar energy is undoubtedly attractive, and supporting clean energy technology is beneficial to all of humanity. However, it's unwise to spend a fortune installing solar panels before first establishing proper electricity planning. As everyone says, energy conservation comes first. So you need to switch to LED bulbs, ensure your attic is insulated, install a programmable meter, and consistently practice thrift before finally investing in solar panels.
Long-term planning
Solar panels, as an important low-carbon technology, are becoming increasingly affordable and efficient, making them highly feasible. In many cases, solar energy's competitive advantage over traditional electricity resources is becoming increasingly apparent. Therefore, once you understand the situation and find a suitable location for installing solar panels, don't let the concerns mentioned above prevent you from giving it a try. Although the initial investment is significant, consider that you are investing in electricity for the next decade or more—avoiding price instability, reducing greenhouse gas emissions, and supporting a truly low-carbon economy through your actions.
However, you shouldn't even think about installing solar panels on a north-facing roof that won't get sunlight; it's completely futile.
