Solar Energy Myths

7 Solar Energy Myths - Discussed and Debunked

Solar energy facts and myths. We have all heard of them but how many of us believe them?

In fact, how many of us completely disregard them?

The reality is that most recognise the importance of solar energy in the mix as we move to cleaner energy sources.

Despite the various solar energy facts and myths, the reality is that the days of expensive solar energy have gone. We now find ourselves in a time where solar power systems are becoming more and more affordable.

Therefore, they are now starting to overtake fossil fuels. Whereas not entirely down to solar, over the first five months of 2019 the UK generated more power from non-polluting clean energy sources than fossil fuels. In the US reports state that April was the first month the same occurred, ever. Elsewhere in the world, India is now investing more in solar than coal.

Whether you want to do your bit for the planet or reduce your electricity bill, solar energy is a serious contender.

Innovation and Improvement Dispelling Solar Energy Myths

Scientists and engineers are investing more money in solar technology. Significant progress has been made over the past 25 years improving the energy output from solar.

This is mostly down to improvements in the efficiency of solar energy. Solar energy efficiency is how much of the sun’s energy is actually converted into heat or electricity. Way back in the 1960s, Les Hoffman created a solar cell with an efficiency of around 14%. Later in the 2000s, new microelectronic materials bought us closer to 25%2.  And then later in 2017 scientists in Germany achieved 44.5% efficiency6. That’s an improvement in solar efficiency of nearly double in less than 10 years.

Of course, reversing damage to the environment is vital. One way we can help remove our need for C02 polluting fuels is to accelerate the transition to solar energy. In turn, supporting the electricity grid with this cleaner energy source. Despite this, a whole host of solar myths can still put people off making the switch. In this article, the aim is to debunk those solar energy myths and show just why solar energy is a worthwhile choice.

Solar Energy Myths:

Solar Energy Panels Blue Sky

Solar energy is the third most popular type of renewable energy after wind and hydro. As we move to move renewable sources expect to see an increase in solar. Photo Credit: Pixabay from Pexels

Myth 1

Solar Energy Mixes with Non-Renewable Energy in the Grid Which Means it is not Renewable

All energy, whether it is renewable or non-renewable will combine in the grid7. It is not possible to split up the various sources once they enter the system. However, if we add more solar energy to the grid, it reduces the need for other energy sources. We can only consider this to be a good thing.

Many of us desire 100% renewable energy. However, the variability of solar generation on a large scale can present problems achieving consistent levels of renewables3.

However, people can guarantee 100% renewables off-grid. We can achieve this via independent solar PV systems. By installing solar panels on roofs and not drawing electricity from the grid homes can achieve 100% renewable energy.

So, even if solar does mix with traditional energy, it does not make it a non-renewable. A balance is necessary whilst we transition to more renewable sources.

The more solar energy that goes into the grid the cleaner our energy becomes. Governments, energy companies and individuals are shifting the balance in favour of renewable energy. As we do we can look to completely phasing out non-renewable energy. For the planet and our climate the sooner this happens the better.

Myth 2

Solar Farms Waste Land

If we want to build solar farms that can contribute to the energy needs of whole countries then we need space. Yes, solar farms are often built on agricultural land but that does not mean they waste land. Solar panels require space and to accelerate renewable energy use we need to find that space8.

In general, for every 1 kW of energy we generate via solar power, we need around 100 square feet of panels11. So, if we consider a 1mW solar PV plant, then we will need around 100,000 square feet. In the grand scheme of things, this is not a huge amount of space.

All solar farms are subject to rigorous planning. As part of this, low-grade land is prioritised. Additionally, solar farms can co-exist with livestock. When replacing empty land or crops they can provide a haven for bees and birds as well as other insects and wildlife. This improves pollination and helps crop yields in other fields10.

So, we find the solar energy myth that solar farms waste of land incorrect. They can actually help farmers to enhance their productivity. It can also help us to make use of stubborn land whilst, in measure, supporting natural habitats at the same time.

Myth 3

Solar Energy Costs Too Much

Perhaps ten or fifteen years ago, we were able to say that solar energy was too expensive. However, solar is now a cheaper source of energy than fossil fuels.

We are seeing increased demand and developments in the technology and that pushes costs down12. Those who choose to install solar panels can benefit not only from an affordable system but also from feeding excess energy into the grid.

The UK government has pledged a significant amount of funding, including £177 million, in order to bring the cost of solar energy technology down. Eventually, this will feed through to end customers who will then benefit from making savings. Innovative feed-in tariffs provide a further incentive. Solar installations can earn money whilst helping to reduce energy costs.

Myth 4

Global Warming is Not Real

There are still people out there who believe it is a hoax. Despite this, scientists are proving that climate change is down to human activity. As 97% of climate scientists believe this, then there is no way that global warming is a hoax9.

So, those people who think that solar energy is pointless should think differently. These scientists are experts in their fields. Therefore, we should take action to counteract global warming.

Myth 5

It is Inaccessible

Another solar energy myth is that solar energy is inaccessible. On the contrary solar energy is a cost-effective, electricity generation solution. The cost is now less than that of fossil fuels. The economics of solar energy is now more favourable than that of climate polluting fossil fuels13.

On earth, we have the ability to generate 89 Petawatts of solar energy15. This makes solar energy the most abundant source of power in the world.

In fact, solar energy is now more accessible than ever before. Community solar projects are on the rise with businesses and homeowners taking advantage of it. There are also some excellent examples of schools using solar energy.

Solar Energy Myths Community Solar Farm

Community solar installations have become a more common sight. In the U.S community solar in 2020 is forecast to add 3GW of electricity generation14. 3GW can power about half a million homes. The installation pictured is in Maine, U.S. Photo Credit: U.S. Department of Energy by William Byers on Flickr free for re-use.

Myth 6

More Maintenance is Required

Solar energy requires land and it also requires a solar installer. However, once we install solar PV panels there is limited need to worry about long term maintenance4. Of course, large farms will have teams of specialists who monitor systems. This ensures that they operate efficiently as well as help to identify problems.

Unlike other traditional methods, solar energy does not require individuals who work on the power plants in the same way. The panels will need checks from time to time. However, there is a reduction in the need for maintenance helping reduce the ongoing cost1.

Myth 7

Cloudy Weather Means Solar Panels Don’t Work

Everyone associates solar energy with the sun. While this is true, they still work and harness sunlight when the weather is cloudy. We can rely on solar energy all year round5, even when it snows.

Solar energy is an extremely reliable source of energy. Energy production might drop slightly with less sun however they will continue to operate.

Perhaps surprisingly, solar energy generation is known to improve when the temperatures are low. This is because electronics function more efficiently during lower temperatures.

Solar energy myths and facts - It is a Real Source of Energy

If we are to take solar energy seriously, then we need to understand what makes solar energy green. Solar energy is improving and that has made it a worthwhile technology. More countries use solar than ever before. From affordability to accessibility solar energy is a hugely important part of our energy future. Nobody can argue with that.

#Description
1Mohammad Taghi Ameli, Saeid Moslehpour, Mehdi Shamlo, Economical load distribution in power networks that include hybrid solar power plants, Electric Power Systems Research, Volume 78, Issue 7, 2008, Pages 1147-1152, ISSN 0378-7796, https://doi.org/10.1016/j.epsr.2007.09.009.
2Jackson, P. , Hariskos, D. , Lotter, E. , Paetel, S. , Wuerz, R. , Menner, R. , Wischmann, W. and Powalla, M. (2011), New world record efficiency for Cu(In,Ga)Se2 thin‐film solar cells beyond 20%. Prog. Photovolt: Res. Appl., 19: 894-897. doi:10.1002/pip.1078
3C. Wan, J. Zhao, Y. Song, Z. Xu, J. Lin and Z. Hu, Photovoltaic and solar power forecasting for smart grid energy management. in CSEE Journal of Power and Energy Systems, vol. 1, no. 4, pp. 38-46, Dec. 2015. doi: 10.17775/CSEEJPES.2015.00046
4Jibran Khan, Mudassar H. Arsalan, Solar power technologies for sustainable electricity generation – A review, Renewable and Sustainable Energy Reviews, Volume 55, 2016, Pages 414-425, ISSN 1364-0321, https://doi.org/10.1016/j.rser.2015.10.135.
5N. Sharma, P. Sharma, D. Irwin and P. Shenoy, "Predicting solar generation from weather forecasts using machine learning," 2011 IEEE International Conference on Smart Grid Communications (SmartGridComm), Brussels, 2011, pp. 528-533. doi: 10.1109/SmartGridComm.2011.6102379
6Lumb, M. P., Mack, S., Schmieder, K. J., González, M., Bennett, M. F., Scheiman, D., Meitl, M., Fisher, B., Burroughs, S., Lee, K.‐T., Rogers, J. A., Walters, R. J., GaSb‐Based Solar Cells for Full Solar Spectrum Energy Harvesting. Adv. Energy Mater. 2017, 7, 1700345. https://doi.org/10.1002/aenm.201700345
7Ton, Dan, Peek, Georgianne H., Hanley, Charles, & Boyes, John. Solar energy grid integration systems - Energy storage (SEGIS-ES). United States. doi:10.2172/1217673.
8Reda Hassanien Emam Hassanien, Ming Li, Wei Dong Lin, Advanced applications of solar energy in agricultural greenhouses, Renewable and Sustainable Energy Reviews, Volume 54, 2016, Pages 989-1001, ISSN 1364-0321, https://doi.org/10.1016/j.rser.2015.10.095.
9Sterman, J. D. and Sweeney, L. B. (2002), Cloudy skies: assessing public understanding of global warming. Syst. Dyn. Rev., 18: 207-240. doi:10.1002/sdr.242
10R.R. Hernandez, S.B. Easter, M.L. Murphy-Mariscal, F.T. Maestre, M. Tavassoli, E.B. Allen, C.W. Barrows, J. Belnap, R. Ochoa-Hueso, S. Ravi, M.F. Allen, Environmental impacts of utility-scale solar energy, Renewable and Sustainable Energy Reviews, Volume 29, 2014, Pages 766-779, ISSN 1364-0321, https://doi.org/10.1016/j.rser.2013.08.041.
11Solar Market Insight Report 2016 Year In Review. Solar Energy Industries Association
12Shafiqur Rehman, Maher A. Bader, Said A. Al-Moallem, Cost of solar energy generated using PV panels, Renewable and Sustainable Energy Reviews, Volume 11, Issue 8, 2007, Pages 1843-1857, ISSN 1364-0321, https://doi.org/10.1016/j.rser.2006.03.005.
13Renewable Power Generation Costs in 2017. International Renewable Energy Agency. January 2018.
14U.S. Community Solar Outlook 2017. Wood Mackenzie, February 2017.
15Rizzo, Gianfranco & Arsie, Ivan & Sorrentino, Marco. (2010). Hybrid Solar Vehicles. 10.5772/10332.
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