A recent report from Columbia University’s Sabin Center for Climate Change Law identified and rebutted a list of false claims about solar energy. The authors “reviewed social media groups and websites created to oppose renewable energy projects or policies, as well as existing coverage about misinformation.”
Looking into these discussions on social media, we’re struck by the astounding number of people who still believe solar myths they have heard circulating around. It can be hard to understand the technicalities behind solar power and get the facts straight. But it is, however, crucial to be informed without being misguided, especially when considering installing solar panels as alternative energy sources.
Myth 1: Solar energy is unreliable and requires 100% fossil fuel backup
Solar panels, without backup from batteries or long-distance transmission, can face intermittent challenges. However, many solar projects now integrate energy storage, ensuring more reliable electricity supply. This includes using other renewables, stored energy, and power from sunnier areas on cloudy days, reducing the need for new natural gas plants as backups.
A National Renewable Energy Laboratory study found that panels installed between 2000 to 2015 had a median failure rate of five out of 10,000 annually, a rate of 0.05%. The failure rate of residential PV inverters have been described by researchers as “acceptable, even good,” needing to be replaced only once in the lifetime of a solar photovoltaic (PV) system
Myth 2: Solar energy is worse for the climate than fossil fuels
Like fossil fuels, solar energy offers both pros and cons. While fossil fuels offer consistent availability, they come with well-known downsides like greenhouse gas emissions. Solar, on the other hand, is a technology. Unlike fossil fuels, solar energy doesn't require drilling and eroding the ground, then polluting water supplies.
Modern solar panels last around 30-35 years, providing ample time to reach carbon neutrality and produce clean energy without emissions. Specifically, the total lifecycle emissions for PV and concentrating solar power (CSP) panels were 43 and 28 grams of CO2-eq/KWh (carbon dioxide-equivalents per kilowatt-hour). In contrast, coal generated lifecycle emissions are 1,001 grams of CO2-eq/KWh, and natural gas generated lifecycle emissions are 486 grams of CO2-eq/KWh.
Myth 3: We do not have sufficient mineral resources for large-scale solar development
A 2023 study analyzed 75 emissions-reduction scenarios and determined that the global reserves of essential materials should be sufficient to fulfill the future demand for electricity generation infrastructures. Moreover, recent developments have seen the emergence of new commercial initiatives aimed at recycling solar panels, potentially decreasing the need for specific raw materials in the future.
Myth 4: Solar projects harm biodiversity
When solar farms are well-planned, and include habitats for pollinators, they can support and boost natural biodiversity.
The microclimates created by solar farms can diversify plant life, leading to a richer variety of insects and birds. Additionally, the shaded areas under solar panels can provide essential habitats for various species, including those that are endangered.
Myth 5: Solar energy costs more than fossil fuels and relies on subsidies
Initially, installation costs were high because it was uncommon to use solar power as an energy source. Now, solar power has become “the cheapest source of new electricity generation in most parts of the world” This is evident from the record-low power purchase agreements seen in countries such as the United Arab Emirates and Chile.
One report states that solar is currently at $60/MWh, while gas combined cycle is at $70/MWh. Unlike oil, gas, and coal, solar photovoltaic (PV) is a technology, not a fuel, which means its costs are expected to keep decreasing each year due to ongoing research and technological advancements.
While both solar and fossil fuel generation benefit from subsidies, solar power is currently receiving more subsidies than fossil fuels. However, the Inflation Reduction Act is predicted to reduce the subsidized levelized cost of electricity for solar by 20%-35% by 2030.
Concluding Thoughts
Improving energy efficiency simply makes sense when it comes to tackling climate change.
When constructing a new home, you have numerous choices that can improve both your immediate environment and the world at large. Similarly, even if you're not planning to build, making changes to your existing home can significantly reduce your energy consumption and the emissions you generate in the future.
evoDOMUS specializes in providing comprehensive solutions for pairing ultra-energy efficient construction methods with solar photovoltaic system integration in residential projects. With our expertise, you can confidently embrace renewable energy and reduce your environmental impact while enjoying the benefits of sustainable living.
