Energy Performance Scores (EPS) are rating systems used to measure the energy efficiency of a building. This system provides a quantitative assessment of the building's energy performance by measuring the amount of energy required to keep the building running.
Energy Performance Scores are usually expressed as numerical figures or grades that are displayed on a label. A rating of 100 indicates that the building is highly energy-efficient and requires minimal energy usage, while a score of zero means the opposite. Energy Performance Scores are now mandatory in many states and countries before a building or property can be sold or rented to a tenant.
There are various energy performance score rating systems available worldwide, but the most common is the Energy Performance Certificate (EPC) and the Energy Star rating. Both systems assess the energy performance of a building, but they use different criteria.
Energy Performance Certificate (EPC): This rating system is used in the UK and Europe, and it's mandatory for all buildings to have one before they can be sold or rented. The EPC provides an energy rating ranging from A to G, with A being the most energy-efficient and G the least. The certificate summarizes the energy performance of the building and provides recommendations for energy-saving improvements.
Energy Star Rating: This rating system is predominant in the United States and it's voluntary. The program was established by the US Environmental Protection Agency (EPA) to evaluate the energy efficiency of buildings and appliances. The Energy Star rating is based on a score from 0 to 100. A score of 75 or higher is required for commercial buildings to receive an Energy Star certification.
The importance of energy performance scores cannot be understated. High energy usage in buildings is the leading cause of greenhouse gas emissions and contributes significantly to climate change. Buildings account for over 40% of energy use globally. By improving the energy efficiency of buildings, we can reduce energy consumption, decrease carbon emissions, and save money.
In addition, energy-efficient buildings are a great investment as they tend to have lower operation and maintenance costs, higher resale value, and improved comfort for occupants. Business owners and landlords can also benefit from energy performance scores by lowering energy costs, protecting assets, and attracting and retaining tenants.
However, achieving high energy performance scores requires a combination of design, construction, and management practices. Building owners and architects must consider factors such as energy-efficient lighting, windows, insulation, heating and cooling systems, and renewable energies.
In conclusion, energy performance scores play a crucial role in promoting energy efficiency and reducing greenhouse gas emissions. They provide a simple and effective way to assess a building's energy performance and drive improvements. By improving energy performance, business owners, and homeowners can reduce energy costs and protect the environment. Therefore, it is essential to prioritize energy efficiency in the design and management of buildings.