The costs of solar energy, both in terms of total installed costs and solar panel costs, have been coming down in the last 20 or so years. The dramatic price drop of solar energy has made solar energy the world’s cheapest source of power currently. It is no wonder that solar photovoltaic (PV) capacity has increased almost 12 times from 72 gigawatts (GW) in 2011 to 843 GW in 2021.
ChatGPT is just one of the many generative AI tools. Many other tools can generate text, images, videos, music, graphics, and other creative content. In September 2023, OpenAI rolled out voice and image capabilities in ChatGPT. So, ChatGPT can now listen, talk, and see. This is a key development and a huge step change that could potentially lead to even more powerful generative AI tools.
Is it possible to create “energy-positive” buildings? Is it possible to make buildings “generators of energy”? The answer is “Yes”. It is possible. In reality, there are already many “energy-positive” homes and buildings around the world.
Hydrogen is increasingly seen as having the greatest potential to close the energy production and consumption demand gap.
Hydrogen is energy-dense. Hydrogen is the most abundant element in the universe. When hydrogen is burnt, it produces water and does not emit any carbon dioxide. It is totally clean and has zero carbon. Green hydrogen, which is produced using renewable energy to break down water into hydrogen and oxygen by electrolysis, does not emit any carbon dioxide in the production process.
Being energy-dense, hydrogen can be stored as a standby fuel for hydrogen-ready gas turbines during periods of peak loads. Hydrogen can be an energy carrier for export.
However, hydrogen by itself does not exist naturally under room temperature and energy is needed to produce hydrogen.
Industry experts believe green hydrogen must be produced at a cost of around US$1.50/kg to be competitive with other fuel types, and we may be close……
In the coming years, the impacts of extreme weather events on energy security, food security, water security, and biodiversity will force many countries to intensify their climate change actions to reduce global warming.
To reach net-zero by 2050 is no longer enough. Reaching net-negative by 2040, 10 years before 2050, shall be the new target.
We are, by April 2022, 25 months into the global COVID-19 pandemic which was declared officially by the World Health Organization (WHO) on 11 Mar 2020.
In many parts of the world, lives have come back to almost like the pre-pandemic normal. People have gone back to offices to work at least for some workdays instead of working from home. Students have gone back to schools for face-to-face learning. International borders are open in many countries.
So, are we in the COVID-19 endemic yet?
Can Humankind win the war against COVID-19? The answer is yes.
In less than a year, many COVID-19 vaccine developments has made very good progress and are already in the final phase of clinical trials.
What about COVID-19 testing technology?