As humans, we have the power to make changes to our lifestyle that can help ensure a sustainable future for the generations after us.
Countries all over the world are presently making large efforts to curb the issue of global warming and the majority has already established goals to address climate change challenge under the Paris Agreement.
To ensure climate sustainability, we must move away from burning fossil fuels, the leading producer of greenhouse gas (GHG) emissions. Globally we emit over 35 billion tonnes of CO2 per year and the burning of coal, natural gas, and oil for electricity and heat is the largest single source of global GHG emissions. China is, by a significant margin, the world’s largest emitter with more than one-quarter of global emissions. North America – dominated by the USA – is the second largest regional emitter at 18% of global emissions (Source: ourworldindata.org) Research indicates that the demand for energy in the world is expected to triple by 2050 and the current energy source, which mostly consists of oil and coal, is already at its limit and needs to be replaced immediately.
Fortunately, renewable energy plays has been increasingly playing a leading role in power production and reducing GHG emissions. Wind, solar and other renewable energy sources are steadily increasing their share in energy consumption across the world, further reducing the need for CO2-emitting fossil fuel energy. Global investments in renewables continued to show steady growth over the past decade.
Solar has proven to be one of the best renewable options and if produced on a massive scale can transition us towards sustainability. The declining cost of solar photovoltaic (PV) systems owing to technological upgrades and competition in the market, globally, has been driving the demand for the solar energy market. Active solar devices such as PV solar panels help to provide sustainable electricity for any use.
On PV, off-grid applications are increasing becoming a relevant industry in for both electricity production and lighting. These applications are typically used where there is no electric grid or when the cost of connecting to the grid is high. A key feature of off-grid renewable energy solutions is that they offer rapidly deployable, reliable and, in many cases, the most economically sustainable option to address the need for energy access (IRENA, 2018). In the last decade, the global installed capacity of off-grid solar PV has grown more than ten times, comprising mainly of solar home systems (about 50%) and solar lanterns/solar lighting systems (about 35%). Solar lighting system market is projected to reach USD 10.8 billion by 2024 from USD 5.2 billion in 2019.
It is expected that use of these green technologies can increase energy efficiency in the residential sector and contribute to diminishing the growth of GHG emissions, the primary cause of climate change. Energy from the sun is endless (at least for the next 5 billion years), it provides clean energy with no GHG emissions and it can save people money on their electric bills.
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