What is the energy use intensity?
When you benchmark your building in Portfolio Manager, one of the key metrics you’ll see is energy use intensity, or EUI. It’s calculated by dividing the total energy consumed by the building in one year (measured in kBtu or GJ) by the total gross floor area of the building (measured in square feet or square meters).
What is energy intensity level?
Energy intensity is defined as the amount of energy used to produce a given level of output or activity. Using less energy to produce a product or provide a service results in reduced energy intensity. Improve understanding of the role of efficiency improvements in changing energy markets.
Why is energy use intensity important?
It is used in a number of different ways including to set a target for energy performance before beginning design, to benchmark a building’s designed or operational performance against others of the same building type, or to evaluate compliance against energy code requirements.
How do you calculate energy intensity?
Energy intensity is the ratio between gross inland energy consumption (GIEC) and gross domestic product (GDP), calculated for a calendar year. GIEC is calculated as the sum of the gross inland consumption of the five sources of energy: solid fuels, oil, gas, nuclear and renewable sources.
What is energy intensity of a country?
Energy intensity is a measure of the energy inefficiency of an economy. It is calculated as units of energy per unit of GDP. High energy intensities indicate a high price or cost of converting energy into GDP. Low energy intensity indicates a lower price or cost of converting energy into GDP.
What is building energy intensity?
Building Energy Intensity is used to gauge the energy efficiency of a building based on the building floor space. It is a measurement of the building’s annual energy consumption (kWh/yr) divided by it’s gross floor area (GFA in m2). Gross Floor Area (GFA) shall exclude car park areas and Data Centre Room.
How does energy intensity work?
Energy Intensity is measured by the quantity of energy required per unit output or activity, so that using less energy to produce a product reduces the intensity.
How does energy intensity relate to energy efficiency?
Energy intensity is a measure of an economy’s energy efficiency and shows how much energy is needed in order to produce a unit of gross domestic product (GDP). For instance, if an economy becomes more efficient in its use of energy and its GDP remains constant, then the ratio for this indicator should fall.
What is an energy intensity target?
We obtain the target level of energy intensity when the amount of energy use is reduced from the actual energy use amount to the minimized energy use amount, while the amount of economic output rises from the actual output amount to the maximized economic output.
What is the difference between energy and intensity?
The Energy of light (electromagnetic radiation) is calculated using the equation . The intensity of light, when defining light as a particle is the number of photons present at any given time. When light is defined as a wave the intensity is the square of the amplitude ( ).
What is an EUI and how is it used for energy management?
Energy use intensity (EUI) measures a building’s energy efficiency. It is expressed as a function of the building size by identifying annual energy usage per square foot of your building. Simply put, it can be computed by dividing your total energy consumption for the year by the total floor area of your building.
What is BEI energy?
Building Energy Index (BEI) [kWh/m2/year] = Total Energy Consumption a year [kWh/year] Total Occupied or Net Floor Area [m2] Total Energy Consumption is defined as total energy of. electricity (or electricity equivalent) consumed by the building.