Let’s all admit it, we sometimes purchase items online or from local stores without truly knowing whether they are energy-efficient or not. We just go with what the salesperson says or what is labeled on the packaging.
Of course, this does not mean that some salespersons lie in order to sell because some genuinely give good recommendations and advice on what gadgets to avoid.
However, the true information lies with the customers and you can only know the performance of a product or a gadget by reading customer reviews.
This article will attempt to give a physics guide of what energy efficiency mean and how to choose energy-efficient products.
Glossary of terms
- Renewable energy – Renewable energy is also known as an alternative energy source. They come from natural sources like the sun and wind rather than Petroleum.
- Energy audit – This simply refers to an assessment of your home’s energy use.
- Home energy rating – It is ranked on a scale of A to G. With a home energy rating of A standing for very efficient and G to represent inefficiency.