Retrofitting

What is Retrofitting?

Retrofitting refers to the process of upgrading existing systems, structures, or equipment to improve their functionality, efficiency, or safety without completely replacing them.

Why is Retrofitting Needed?

Retrofitting is a vital strategy for Newcastle to achieve its Net Zero target by 2030. The city faces unique challenges that necessitate upgrading existing buildings, as outlined in the Net Zero Newcastle – 2030 Action Plan:

1. Energy Consumption Reduction

   • Buildings account for 64% of Scope 1 and 2 emissions in Newcastle. Retrofitting reduces energy demand, easing the decarbonization challenge.

     (Newcastle City Council, 2020, p. 37)

2. Fuel Poverty Alleviation

   • Newcastle has high levels of fuel poverty, meaning many residents struggle to afford heating costs. Retrofitting improves the thermal efficiency of homes, reducing energy bills and enhancing the health and well-being of vulnerable populations.

     (Newcastle City Council, 2020, p. 40-41)

3. Climate Change Mitigation

   • By retrofitting buildings, Newcastle can reduce its reliance on fossil fuels for heating and electricity, significantly lowering carbon emissions and contributing to national and global climate goals.

     (Newcastle City Council, 2020, p. 8-9)

4. Climate Change Adaptation

   • Retrofitting increases resilience against climate-related challenges, such as extreme heat, flooding, and cold weather, protecting residents and infrastructure.

     (Newcastle City Council, 2020, p. 80-85)

   
   

Guide for retrofitting existing homes by Newcastle City Council

How Can Retrofitting Be Done?

The Net Zero Newcastle – 2030 Action Plan outlines a multi-faceted approach for retrofitting buildings to ensure energy efficiency and sustainability:

1. Fabric First Approach

   • Objective: Minimize heat loss by enhancing the building's thermal envelope.

   • Measures:

     • Insulating roofs, walls, and floors.

     • Draught-proofing doors and windows.

     • Upgrading windows to double or triple glazing.

       (Newcastle City Council, 2020, p. 44)

2. Low-Carbon Heating Systems

   • Objective: Transition from gas-based systems to renewable heating technologies.

   • Measures:

     • Install heat pumps (air-source or ground-source).

     • Explore alternative sources like district energy networks, geothermal energy, and hydrogen.

       (Newcastle City Council, 2020, p. 50-55)

3. Renewable Electricity Generation

   • Objective: Increase on-site renewable energy production to reduce dependency on grid electricity.

   • Measures:

     • Install solar photovoltaic (PV) panels on roofs.

     • Incorporate battery storage systems for energy optimization.

       (Newcastle City Council, 2020, p. 48-49)

4. Smart Energy Systems

   • Objective: Use smart technologies to manage energy use more efficiently.

   • Measures:

     • Deploy smart meters and thermostats.

     • Use demand-side management systems to balance energy consumption.

       (Newcastle City Council, 2020, p. 49)

5. Overcoming Barriers

   • The Action Plan acknowledges obstacles such as high costs, lack of public awareness, and complex bureaucratic processes.

   • Solutions:

     • Programs like the Green Homes Grant and Newcastle GREEN initiative.

     • Support for Small and Medium Enterprises (SMEs) to adopt retrofitting measures.

       (Newcastle City Council, 2020, p. 41, 46, 49)

Newcastle’s Vision for Retrofitting

The Net Zero Newcastle – 2030 Action Plan emphasizes that retrofitting is more than a technical upgrade; it is a holistic transformation. By enhancing energy efficiency, cutting emissions, and addressing socio-economic challenges, Newcastle aims to build a sustainable, resilient, and equitable city.