Solar Panels Watt

We are all aware that renewable energy is the future, and it is believed that solar panels could produce over 50% of the world’s energy by 2040.

However, how does it work in terms of power, and is it strong enough at the moment to sustain the needs? In this guide, we will answer these questions.

Watts

All solar panels level of energy outputs are rated in watts. Panels typically range from 1 watt to in excess of 300 watts per cell. Many of the solar panels lie in the range of 135 watts (12 volts), but there are plenty of much greater ones that can be used if needed.

How it is worked out

The amount of watts a solar panel can emit is often shown by how many (watts) it can produce in ‘full sunlight’ (25 degrees). This panel is then marked down (after several tests) to show how many watts it produces. However, the figure that you should make sure you look for is the average that a particular panel emits. It is expected that your panel will produce 10-15% less productivity than the maximum figure because the temperature is not always at 25 degrees (the optimum temperature).

The Problem

The Development of solar panel cells has been in operation for over a century. Currently, solar panels operate at their highest level they have ever done, and it is expected that they will continue to develop in the future. However, at the moment, commercial solar panel cells are only operating at 18% efficiency. This means that they are only using 18% of the power they absorb from the sun. Therefore, at the moment the way solar panels are suggests that you will not get a terrific output per panel.

What this does show us is that one day (with advancements in technology), we will be able to increase the productivity of solar panels. It is estimated that with a further decade of research the productivity figure will rise to about 35%, which essentially means we will need to use roughly half the amount of solar panels to receive the same amount of electricity that we do at the moment.

Until then, the problem remains clear; at the moment the technology is not at a level where it can viably withstand all of our power needs. Even though the sun could power the world 35,000 times, it is not practical in the slightest to change everything to solar energy.

While commercial solar panel units continue to increase (and will do so for the foreseeable future), changes are being made to the way we live. A conversion from ‘regular’ electricity to solar electricity to power a 3 bed house will probably cost in the region of $10,000 to install, not only this but it will also take up a lot of space. At the moment this is not a sustainable option, therefore, until productivity increases, prices drop, and public understanding comes to the forefront, solar energy will continue to play second fiddle to non-renewable sources.