Earth Day 2020 is the 50th Anniversary of Earth Day.

Earth Day 2020Earth Day 2020 is the 50th Anniversary of Earth Day although unfortunately, the world is facing global sustainability issues such as COVID 19, climate change, and other issues.
Achieving sustainability is a work in progress and calls for a constant evolution of technologies, ideas, and concepts to develop solutions that are practical and effective. Sustainability solutions will be resilient and focused on overcoming technical and policy barriers that prevent the uptake of sustainability in different sectors of society.

As of today, the world is experiencing some of the pressing global challenges that we probably have not experienced in our lifetimes. Clearly, technology will not or does not provide all the answers that we need today, however, it will help to speed up or assist in moving us towards a sustainable path. Technological solutions are just one part of the big picture as other solutions include policy, regulations, sustainable business as well as innovative financing options that are effective to promote sustainability from a systems’ perspective.

Technology can be broadly defined as the entities, both material and conceptual created by the application of mental and physical effort to achieve some value. Technological change, on the other hand, can refer to several yet compatible concepts involving an improvement in technology or technological progress. According to Rogers (2003), the idea of technological change underpins a social process involving adopters and others who are profoundly affected by its cultural setting, political institutions, and marketing strategies.

Sustainability calls for new concepts and ideas to reverse, for instance, the effects of climate change. Solar photovoltaics (PV) is just one of many of the new technologies to help in sustainability efforts. IRENA notes that renewables such as solar PV and energy efficiency offer a safe, reliable, and affordable way to achieve massive decarbonization in line with keeping the rise in global temperatures “well below 2°C”. IRENA’s analysis shows the combination of renewables, energy efficiency and increased electrification could achieve 90% of the reductions needed in energy-related emissions.

wind power
Renewables are also becoming cost-effective and with time we have seen for example solar power at grid parity. Grid parity is the point when the cost of alternative energy becomes equal to or less than electricity from conventional energy forms like fossil fuels. As such, renewable energy subsidies are now been phased out, and, in the USA for instance, the investment tax credit (ITC) to support consumers in switching to solar was reduced at the beginning of this year from 30% to 26%.

Now, the solar investment tax credit is available to homeowners in some form through 2021. In 2020 & 2021 owners of new residential and commercial solar can deduct 26% or 22% of the cost of the system from their taxes respectively. The ITC will then be reduced to 10% available for only owners of new commercial solar energy systems while there will be no federal credit for residential solar energy systems’.

Furthermore, IRENA’s analysis of renewable energy shows that the cost of electricity from renewable energy technologies has fallen steadily and even dramatically in recent years, and since 2000, especially for solar and wind generation and are now seen as viable commercial options. Also, power generation from renewable sources and technologies has become competitive with fossil-based or nuclear power.

biogas technology

Food waste is another issue that has become a huge sustainability issue over the last decade. In particular, food waste is a major source of methane (CH4) which is one of the most potent gases that is causing climate change. If food waste were a country, it would come in third after the United States and China in terms of impact on global warming. Hence, reducing food waste around the world would help curb emissions of planet-warming gases, lessening some of the impacts of climate change such as more extreme weather and rising seas.

With these sustainability challenges, it is clear that Earth Day 2020 presents us with an opportunity to contribute to efforts of fighting sustainability issues facing planet Earth and there so many solutions as we have captured above. Here at reneenergy.com, we want to thank you for your continued support and for subscribing to our blog posts. Thank you again. Please subscribe below if you haven’t to keep you posted about our blog posts.



Five(5) benefits of a solar phone charger

With the growing environmental concerns of climate change and the decreasing prices of solar PV, solar energy is trending in many sectors, including but not limited to power homes and businesses. Also, portable solar solutions including portable solar chargers or solar phone chargers are trending with increasing awareness about renewable energy. This article attempts to explain five(5) benefits of using a solar phone charger:solar phone charger

  1. A solar phone charger is portable and uses clean energy to help you charge your electronic devices. Once you have selected your solar cell phone charger, whose cost can be estimated to range anywhere from $50 to $200 depending on the brand and features included, a solar phone charger is very portable as it can be carried anywhere to charge your cellphone. A solar-powered phone charger comes in handy, especially used during traveling or outdoor activities. Since it is portable during the day when there is sunshine you can use it in your picnics, hikes or when camping to use it to charge not only your cellphone but also your iPad, portable speaker, humidifier, etc.
  2. A lot of people especially in rural areas mostly in the developing world are not connected to the grid. As such, having solar chargers and other solar PV systems like solar panels and solar batteries are being used to produce power for both households and commercials helping to solve the energy access issue.
  3. A solar phone charger would probably be the main source of energy in off-grid areas to power cellphones. For instance, in Africa, around 640 million people don’t have access to a grid and where some people do have access to the electricity supply is unreliable and unstable. As a result, solar PV has become one of the main sources of energy to power homes and businesses using one of the most consistent and promising approaches to tackling this huge obstacle to energy access, that is, off-grid pay-as-you-go solar power model, now called PayGo.
  4. A solar phone charger uses solar energy – a renewable energy source. Even though energy from a solar charger might seem trivial or does not have an impact in terms of how much you can save when it comes to energy because cellphones or smartphones use a trivial amount of electricity. For instance, iPhone 5 uses 3.5KWh/year and costing about $0.41/year to charge them while Galaxy S III consumes 4.9 KWh/year at $0.5/year primarily because of the Galaxy’s larger battery. However, this might not impact you, but considering the aggregate impact (about 5 billion cellphones around the world) in terms of energy reduction from the grid and the increasing demand for mobile phones worldwide; your usage of the Sun’s energy to power your phone probably has an impact, if you look at it from a system’s perspective.
  5. A solar phone charger is one step to energy efficiency when you aggregate the number of cellphones from a system’s perspective. Currently, there are about 5 billion cellphones around the world according to GSM intelligence. Users for smartphones are expected to increase by 2023 to over 7 billion. Smartphones consume more energy depending on how many wireless data the device is using as well as the amount of power consumed in making those wireless connections. As a result, when not using energy from renewables, a solar phone charger can help in reducing your carbon footprint.

From a system’s perspective, electronic gadgets or even electric vehicles powered using solar power will have an impact in terms of greenhouse gas (GHG) emissions reduced while increasing the energy efficiency consumed in the long-term.

Some of the best solar phone chargers have been reviewed on Amazon. When looking for some of the best solar phone chargers, it is important to evaluate the number of devices that can be charged, the time it takes to charge, and overall durability when selecting a model.

Five great products on the market have been evaluated through Amazon to help determine which solar charger best meets your needs. You can learn more at Amazon.

To understand your energy profile and GHGs that can be reduced while going solar using a solar panel calculator can help you figure out your sustainability benefits. Learn more about how you can check instantly whether solar is right for you.