Tips For Deciding on Solar Panels

Considering about using solar energy as a way of greening your life and lightening your environmental footprint? When deciding upon panels for the solar power system, there are actually a number of factors worth taking into consideration. Get a lot more information about How Do Solar Panels Work


The cost of a solar panel is determined in part by the size (in Watts), the physical size, the brand, the durability / longevity (or warranty period) and any certifications the solar panel may well have. Choosing a solar panel on cost alone is just not sensible, because it might not fit the region you wish to install it, might not possess the needed certifications to qualify for government rebates, or may not have the warranty needed for economic payback of the power developed.

Durability / Longevity / Warranty

The durability or longevity of a solar panel is important to get a number of factors. Firstly, in the event the solar panel only includes a 10 year warranty and it’s used within a grid connect system you would expect the solar panel to produce enough power to pay for itself inside 10 years.

Also, in the event the panel would be to be used within a essential system you should not threat installing solar panels that are not as robust because the other individuals. Respected solar panels will have warranty a period of 25 years.

Solar Panel Size and Wattage

The size of your solar panel in Watts will directly impact the price, as solar panels are often priced (and compared) in dollars per Watt.

Watts are related to the output of every panel; meaning a 100 Watt panel beneath ideal situations will produce one hundred Watts of electricity every hour plus a 200 Watt panel will create 200 Watts every single hour. Consequently anticipate to spend double cost for the 200 Watt panel, compared to the one hundred Watt panel.

The output of a panel also affects the physical size of the panel, meaning the 200Watt panel might be larger in size to the 100 Watt panel.

The kind of solar cells used in its production also determines the size from the solar panel. They key challenge to consider is that your system all round has enough Watts to power your appliances, and that the solar panels will physically match in the region you want to install them.

Solar Panel Efficiency

There’s substantially debate about efficiency in solar panels, i.e. how powerful the panel is in converting sunlight to electricity; but the key point to remember is the fact that a 100 watt solar panel will create 100 watts; no matter its efficiency ratings.

Solar Cell Variety

There are 3 primary forms of solar cells.

Mono-crystalline silicon

One of the most effective and produces the smallest solar cells, and consequently the smallest panels.

Poly-crystalline (or multi-crystalline) silicon

Produces the following most efficient variety of cells, but equivalent wattage panels are larger than their monocrystalline counterparts

Amorphous (or thin-film) silicon

Uses the least quantity of silicon as well as produces the least efficient solar cells. This implies thin film system take up a lot more area than the other two, nevertheless it has the benefit of providing flexible panels that could be used on curved or irregular surfaces not suited to solid panels.

Solar Panel Suitability

Mono-crystalline and multi-crystalline work incredibly well in vibrant cool situations, whereas amorphous (thin-film) silicon will be far more efficient at greater temperatures.

We typically recommend monocrystalline or multi-crystalline for big unshaded roofs, and amorphous panels for roofs with partial shading.

Irrespective of the technologies at present in use, a solar panel in full shade will only generate a little fraction of its rated capacity; so the “shade tolerant” characteristics you may see advertised might be somewhat misleading.

Comments are closed