LOW CARBON HEATING Heat network? Theres a Hamworthy boiler for that. Scenario planning 3 1 4 All backed up by our friendly and knowledgeable team and a long-term commitment to spare parts. Wessex ModuMax mk3: Built on tradition, designed for modern requirements 40C differential temperature 90C operating temperature 10 bar pressure for high rise Corrosion-resistant stainless steel heat exchanger with 10-year warranty Built-in boiler sequence controls 97-762kW output Call today on 01202 662500 enquiries@hamworthy-heating.com hamworthy-heating.com 5 6 2 7 10 Electrical Smart controls For every building theres a Hamworthy solution. | COMMUNIHEAT 8 9 Optional connection Heat Natural resources 1 Boiler 2 Electric heating 3 Biomass 4 Thermal storage 5 Heating network 6 Heat pump 7 Batteries 8 Solar (PV) 9 EV charging (car club) 10 EV charging one way Figure 2: Various scenarios are being modelled because Buro Happold does not know what technologies consumers will choose what is a multi-step process of modelling, developing an implementation road map, and designing the solution, which can all be done in the same digital environment. Having populated the model, Buro Happold is now starting to model various scenarios. Its scenario-based, because we do not currently know what technologies consumers will choose, says Proctor (see Figure 2). What we can say is that, if they made a certain choice, the model can anticipate what the outcome would be for consumers, in terms of their energy bill and capital cost, versus the implications for the network. In another scenario, the model will be used to assess the implications of adding a 7kW electric vehicle (EV) charger to the heating load for every home with a drive. Proctor explains: The focus of CommuniHeat is about getting the heat price down and understanding the network impact of heat, but from a network perspective you also need to be able to understand the impact of combined heat and EV charging. The model will also be used to assess the impact on Grid demand of adding energy efficiency measures to homes. Well model the impact of putting insulation into properties by adjusting the heat profile, which well then convert into a power profile to assess the impact on the network, says Proctor The team is now running the optimisation exercise, which will attempt to minimise the cost to the consumer of the oil to electric transition. This includes appraising the benefits of access to community energy services, which include community-owned renewable energy and new financing mechanisms. Our results show communityowned assets and local energy markets can make a real difference to the cost to the consumer, says Proctor. Other scenarios planned include modelling the impact of battery and thermal storage. All these technologies are in the model. Once weve optimised consumer costs, well look at demand flexibility, Proctor adds. The resulting insights are being collated, and Proctor says these are proving really interesting and could lead to real changes in the way we approach decarbonisation for these communities. CJ 38 January 2022 www.cibsejournal.com CIBSE Jan 22 pp36-38 Community heat.indd 38 23/12/2021 13:56