Introduction to the Data section
LCA is data intensive. This section provides data that have been compiled by BRANZ to support building LCA of offices, and comprises:
Datasheets - generic data to support LCA modelling of the building life cycle.
LCA data - a New Zealand low voltage Grid electricity dataset for use when modelling the environmental impacts as a result of use of Grid electricity.
Datasheet data are generic i.e. they do not relate to specific building products, and therefore are aimed for use in early design when decisions on specific products are less likely to be made.
The data are presented in Excel. Each datasheet has a worksheet that provides guidance on the structure of the datasheet, and how to use the presented information. BRANZ recommends that you read this prior to use.
Datasheets may be useful for other LCA applications. It is up to the user to determine the suitability of the data for these other purposes.
Datasheets are named according to modules in the life cycle of buildings. For information about modules, click here.
The methods used for development of these datasheets are set out in the BRANZ SR351 study report.
The intention is to add to and improve these datasheets with data and information provided by construction industry stakeholders. To find out how you can provide data and information, please click here.
This section has data for use when modelling buildings using LCA. Given the significance of electricity use during occupation of buildings, a New Zealand low voltage Grid electricity dataset is available for download.
When comparing buildings using LCA, it is important that data used are comparable and consistent. This dataset is provided for this purpose.
The dataset is based on the LCA model developed by Sacayon Madrigal (2016) and comprises a three year average from 2012 to 2014 inclusive. Greenhouse gas emissions arising as a result of production and supply of electricity on the Grid may vary year to year depending on the amount and location of rainfall. A Grid average over 3 years has therefore been calculated to smooth out annual peaks and troughs that may result from different rainfall patterns each year.
The dataset can be received in the following formats:
References cited in this section
Sacayon Madrigal EE; Assessment of the life cycle-based environmental impacts of New Zealand electricity; Masters thesis presented to Massey University; 2016.