Cardiff (Wales) - Grangetown

Cardiff is the capital and largest city in Wales and the ninth largest city in the United Kingdom.

Since the 1990s, Cardiff has seen significant development. A new waterfront area at Cardiff Bay contains the Senedd building, home to the Welsh Assembly Government and the Wales Millennium Centre arts complex. Current developments include the continuation of the redevelopment of the Cardiff Bay and city centre areas with projects such as the Cardiff International Sports Village, a BBC drama village and a new business district in the city centre.

A - Aerial photograph of Cardiff Bay
B - Wale Millennium Centre arts complex
C - Cardiff International Sports Village design

Grangetown is a thriving urban community within the city of Cardiff comprising of almost 20,000 residents, with a population density of almost twice the average of the city. Grangetown is one of the most culturally diverse communities of any Council ward in Wales, 92% of children attending the local school have English as a 2nd language. A smaller section of Grangetown is also home to a major Welsh Water pilot project named Greener Grangetown which is looking at the retrofit of innovative sustainable urban drainage systems. The City of Cardiff Council is involved both as highway authority and in a community liaison and urban design advisory role. 

This area of Grangetown sits right adjacent to one of the city's largest rivers, the River Taff. For the WISDOM project, we will be looking into demand management by replacing customer meters with Smart Meters. In addition, customers that volunteer to be involved in the project will receive a water audit and the opportunity to access their water usage data. These meters will allow us to gain a better understanding of how water is used in the area.

It is envisaged that the WISDOM project, running alongside the Greener Grangetown work, will further heighten residents' awareness of their water use causing behavioural changes where water and money is saved. The area for the study comprises of a main road that runs alongside the river with a dozen side streets branching from that main road. Around 95% of the properties are residential housing made up predominantly of terraced houses. There is a Mosque and a number of retailers located nearby including 12 grocery shops/food outlets and the same number of retailers not selling food (pharmacy, upholsters, hairdressers etc.).

There is a further option for the WISDOM project to investigate water usage in larger commercial enterprises by widening the scope of the study area to include 2 Primary Schools, 2 Car Garages and an assortment of warehouse which are located in the wider vicinity. Just a little further North along the adjacent river bank is located a large Brewery which would also use significant amounts of water compared to the residents of Grangetown. Discussions about the inclusion of these uses in the WISDOM work are ongoing.


Type of Building

Expected water usage

Mosque (Clydach St)

More than typical household usage

Council Houses

Typical  household  usage

Terraced Houses

Typical  household  usage

Semi Detached Houses

Typical  household  usage

Care Home/Flats

More than typical household  usage

Food Outlets/Grocery Stores

More than typical household usage

Non food retail outlets

Less than typical household  usage


Cardiff (Wales) - Twyny Aberdovey

The Tywyn Aberdovey water distribution zone in North West Wales has been identified as one where there is a fine balance between supply and demand. Dŵr Cymru Welsh Water (DCWW) has been tasked by Ofwat, as part of the Sustainable Economic Level of Water Efficiency (SELWE) target, to reduce overall demand before the end of AMP 5 period, March 2015. The company has already carried out water efficiency projects in the area and this is one of the reasons why this location was chosen as a third trial site for the WISDOM project. Other reasons for choosing this location are that the Tywyn Aberdovey water distribution zone is a wholly enclosed system from abstraction, to water treatment through to discharge from the wastewater treatment works. This is different from the Grangetown area of Cardiff. Grangetown is supplied from a water treatment works that is located to the north east of the capital city and which also supplies many other areas of Cardiff. Secondly, the wastewater treatment works which receives Grangetown flows also receives waste water from different parts of Cardiff and the Vale of Glamorgan. Finally, the clean water network within Cardiff is primarily gravity fed, providing limited demonstration opportunities for examining the water-energy nexus within this area. The addition of the North Wales pilot area to the WISDOM project provides the exciting ability to demonstrate elements of WISDOM on an enclosed section of network allowing demonstration in a way that is not possible in the Grangetown area.