Parc Hafod decarbonisation retrofit
Project Overview
Hafod Housing Association Ltd. (Hafod), with the expertise of NetZero Collective and Cardo Group, has successfully completed a decarbonisation retrofit at Parc Hafod. This sheltered living scheme consists of 29 flats across four blocks, where improvements have been made to enhance energy efficiency. The primary focus was the installation of a large solar PV array, designed to lower residents’ electricity bills and reduce the cost of running electric heating systems.
Project Planning
NetZero Collective led the retrofit consultancy and programme management, ensuring a strategic and well-coordinated approach. The installation phase was completed in early 2025, with minimal disruption to residents. The system design features the SolShare technology, which distributes solar-generated electricity equitably among the flats in each block, making the most of renewable energy while simplifying installation.
Procurement of Products & Services
To achieve the project’s objectives, Hafod procured NetZero Collective’s consultancy and programme management services, alongside Cardo Group’s installation expertise. The work was secured through Pretium’s Greener Futures Partnership Framework, ensuring an efficient procurement process that aligned with technical and sustainability goals.
Project Delivery & Lessons Learned
A key challenge during the project was property access, a common issue in retrofit works. However, Hafod’s Decarbonisation Engagement Officer played a crucial role in overcoming this, ensuring smooth progress. One of the standout successes of the scheme has been the implementation of SolShare technology, which has proven to be a much simpler and more efficient solution for distributing solar power in multi-flat properties compared to traditional string inverters.
Workforce, Skills & Resident Engagement
A post-installation resident engagement event is planned to educate residents on how to make the most of their upgraded energy systems. Given that these properties rely solely on electric heating, the benefits of the solar PV system are expected to be particularly significant in reducing energy costs and improving affordability.
Conclusion
The Parc Hafod retrofit project demonstrates the benefits of innovative solar PV solutions in sheltered living schemes. By incorporating shared solar distribution technology, the project is expected to deliver substantial cost savings and environmental benefits for residents. With the collaborative efforts of NetZero Collective, Cardo Group, and Hafod, this scheme serves as a model for future energy efficiency upgrades in social housing.
