Homeowners shopping for solar often ask us: How much energy does a solar panel produce?
It’s a good question because it will help you calculate how many solar panels you’ll need to power your home. Depending upon its wattage, a single solar panel only makes enough electricity to power a light bulb for a few hours, but when you take a dozen or so high efficiency solar panels, you can power your whole household with clean energy from the sun.
Because solar panels don’t work in isolation, it’s important to first understand a couple of key concepts: solar panel efficiency and how a photovoltaic (PV) solar system works.
Solar panels capture sun’s photons — little packets of energy – and turn them into electricity.
To capture as much sunlight as possible you need an efficient solar panel. ZeroSolar Jinko panel are the most efficient solar panel you can buy for your home. A ZeroSolar converts 22.8 percent of the sunlight it receives into energy, compared to conventional panels that typically convert 15 percent to 18 percent. This means you can need fewer solar panels to generate the same amount of power as a conventional solar system with more panels.
How a Home Solar System Works
Every PV solar panel is made of silicon, the same material used for semiconductors. When photons are collected by those silicon panels, they’re turned into direct current (or DC) electricity. That type of electricity is great for powering small gadgets like flashlights and phones. But homes are powered by alternating current, or AC electricity. So solar systems require an inverter to transform the DC electricity into AC to power your house.
ZeroSolar Jinko panels are not just efficient because they capture more sunlight. They’re more efficient because they also have a smarter inverter setup.
Plus ZeroSolar Jinko panels maintain their energy production much better than conventional panels in partly-shaded conditions. In a conventional solar panel, if a single cell is covered by a leaf or dirt, the panel could see a 33 percent reduction in power output. A ZeroSolar panel might only see a 6 percent reduction in output.
How Much Energy Does a Solar Panel Produce?
So how much power does a ZeroSolar Jinko panel produce? For a given space on your roof, it produces more than any other panel you can buy. For a typical homeowner, recent data suggest average needs range from about 12 panels in Hamilton (a 7-kilowatt system) to 25 panels in Invercargill (12 kW).2 Because a typical conventional system is much less efficient, you may need between 23 and 40 panels to achieve the same power – which would take up a lot more space on your roof.3
Just as important is a solar panel’s degradation rate, and ZeroSolar Jinko panels are the lowest in the industry. Over its guaranteed 25-year lifespan, a ZeroSolar panel will provide 50 percent more power than old conventional panel.4 And, while our best in the industry combined power and product warranty is for 25 years, Zerosolar panels have an expected useful life of 40 years
Of course, a lot of factors play into determining how many solar panels you’ll need for your house A Zerosolar Consultant can help call 0800 400 900