These two recent examples illustrate how city authorities are entrusting Dalkia with the mission of supporting their grand renovation and revitalisation projects for urban zones, with an environmental slant.
Networks at the heart of urban development projects
In Barcelona, Dalkia won the international procurement contract for the construction and operation of a heating and cooling grid supplying the districts of la Marina, Gran via l'Hospitalet, the Mercabarna market and the Fira trade fair(see press release [in French]:http://www.dalkia.com/fr/presse/actualites/20090727,contrat-energie-barcelone.htm).
In Hamburg, Germany's second city, Dalkia's bid was selected for the construction and operation of a heating plant and supply network in the vicinity of the harbour zone.Zone coverage represents some 900,000 m², comprising 90% homes and offices.
These two projects demonstrate how heating networks can constitute a modern, efficient and sustainable response in supporting urban development along sustainable, environmental lines.
Renewable energies in the heart of the cities
What these innovative and exemplary projects have in common is their leveraging of renewable energies.In Barcelona, the project will ultimately incorporate cold recovery from a regasification plant, and heat generation will come from a cogeneration plant using biomass from the city's parks and gardens.Solar heating systems will also be incorporated.In Hamburg, heat will be produced essentially via the exploitation of biomass and use of innovative fuel cell technology run on biogas.
Costed environmental benefits
There are significant environmental benefits for both projects.The emissions from the Hamburg network will, according to the general specifications, be less than 120g/KWh in 2016. In Barcelona, the expected CO2 reductions represent the equivalent of the consumption of a town of 60,000 inhabitants: almost 14,000 tonnes of CO2.