Definitions

We define the common 'green' terms we use to ensure transparency

Definitions

We define the common ‘green’ terms we use to ensure transparency.

Tonnes of carbonWe mean carbon dioxide equivalent (CO2e), which is a unit of measurement that allows different greenhouse gases to be compared relative to one unit of CO2. This unit of measurement is typically used in carbon assessments and is sometimes expressed as Global Warming Potential (GWP). Carbon OutputThe number of tonnes of carbon released over a given time period. Embodied CarbonMaterial-related emissions over the entire lifecycle of the buildingOperational CarbonThe carbon emitted in energy and water consumption over the lifecycle of the building Whole life carbonA term used to describe the combined embodied and operational carbon over the life of a building

This graphic shows additional definitions that are associated with embodied, operational and whole life carbon.

Energy performanceMeasures the relative energy efficiency of a building, measured by the amount of energy required to provide building services. Whole life costThe total costs throughout the entire lifespan of a building, from construction to operation to disposal & distinct from lifecycle costing. Circular economyMeans designing for reuse, minimising waste, and maximising resource efficiency. Biodiversity net gainAn approach where developments leave biodiversity in a better state than before. It encourages developers to provide an increase in natural habitat and ecological features above the level of loss resulting from the project. The figure can be positive and negative. StakeholderIndividuals or groups with an interest or concern in our projects or who are affected by them.

Pictured: Two of our stakeholders (teaching staff) at the new Llanilltud Faerdref Primary School in Wales.