WHOLE PROPERTY ENERGY UPGRADE
External Wall Insulation, Solar & Electric Heating – Codnor Ripley, Derbyshire
AEG delivered a full residential energy efficiency upgrade combining external wall insulation, solar PV, and electric storage heating to reduce heat loss, improve indoor comfort, and significantly uplift the property’s overall energy performance.
PROJECT OVERVIEW
A coordinated retrofit designed to improve insulation, generate renewable electricity, and modernise heating
This project involved a comprehensive residential retrofit delivered by AEG at a property in Codnor Ripley, Derbyshire. The installation combined a 100mm external wall insulation system, a roof-mounted solar photovoltaic array, and Dimplex electric storage heaters to create a more efficient and comfortable home.
By integrating thermal insulation, renewable electricity generation, and controlled electric heating, the project addressed multiple performance issues at once. The result is a property with significantly lower heat loss, better use of energy, and a much stronger EPC outcome.
Improved thermal envelope through full external wall insulation
Onsite renewable electricity generation through solar PV
Efficient electric storage heating for better control and comfort
Project Snapshot
THE CHALLENGE
Addressing poor insulation, inefficient electric heating, and weak overall energy performance
Before the upgrade, the property experienced significant heat loss through poorly insulated external walls, creating higher heating demand during colder periods and reducing indoor comfort. The building also relied on an inefficient electric heating setup that did not support good energy performance.
These issues affected both running costs and livability. The project required an integrated solution that could improve the building fabric, support lower energy consumption, and deliver more reliable and controlled heating throughout the home.
Before Upgrade
Poor thermal insulation, high heat loss, inefficient electric heating, and a low EPC rating.
Project Objective
Create a coordinated retrofit that improves efficiency, comfort, and long-term property performance.
THE SOLUTION
A multi-technology installation combining insulation, solar generation, and efficient electric heating
External Wall Insulation
A 100mm EWI PRO insulation system was installed across exposed walls to improve the thermal envelope and reduce ongoing heat loss from the building fabric.
Solar PV Integration
A roof-mounted solar photovoltaic system was installed to generate renewable electricity onsite and support lower dependence on grid-supplied energy.
Electric Storage Heating
Dimplex electric storage heaters were installed to improve heat delivery, support off-peak energy use, and provide more practical room comfort throughout the property.
EXTERNAL WALL INSULATION SYSTEM
Strengthening the building fabric with a 100mm insulated external envelope
The external wall insulation installation was central to the retrofit strategy. By applying a 100mm EWI PRO system to the outside of the building, AEG improved the property’s ability to retain heat and reduced thermal loss across exposed wall areas.
The process included wall preparation, insulation board fixing, detailing around openings, and a rendered finish to enhance both thermal performance and external appearance.
100mm EWI PRO insulation system installed
Improved indoor temperature retention
Reduced heat loss through external walls
Enhanced finished appearance of the property exterior
INSTALLATION PROCESS
Wall preparation, insulation fixing, system build-up, and rendered finishing stages
SOLAR PV INSTALLATION
Renewable electricity generation integrated into the wider property upgrade
The solar PV installation allows the property to generate renewable electricity onsite, helping support the operation of the electric heating system while reducing reliance on imported grid energy.
Delivered using technology from Chint New Energy Technology Co., Ltd., the system forms an important part of the overall upgrade by improving energy resilience and contributing to lower ongoing electricity demand from conventional sources.
Roof-mounted renewable electricity generation
Supports lower reliance on grid energy
Works in combination with electric heating measures
SOLAR SYSTEM COMPONENTS
Installed with roof array to support safe and efficient renewable generation
The completed solar installation included the roof-mounted panel array needed to generate renewable electricity safely and effectively as part of the wider retrofit strategy.
Roof-mounted solar PV array
Supports efficient use of generated electricity
Helps reduce dependence on conventional grid power
Contributes to wider property energy performance improvements
ELECTRIC STORAGE HEATING
Modern Dimplex heaters installed to deliver controlled and efficient room heating
Installed Heater Units
AEG installed Dimplex electric storage heaters including QRAD150RF, QM070RF, QM150RF, and QM100RF to improve controllable internal heating performance.
Room-Based Comfort
The installed heaters improve usable room comfort and support practical heating output throughout the property following the wider energy upgrade works.
Off-Peak Energy Use
The storage heating system stores energy during off-peak periods and releases heat when required, helping improve cost control and day-to-day efficiency.
BEFORE & AFTER
From heat-loss-prone brick façade to a fully insulated and rendered finished exterior
ENERGY PERFORMANCE IMPROVEMENT
A major uplift in EPC performance from a low-rated property to a modern efficient standard
Pre-Installation Rating
The property had a low pre-installation energy rating of G (11), reflecting poor insulation and inefficient heating performance.
Post-Installation Rating
Following the full upgrade, the property achieved a much stronger rating of B (86), showing substantial improvement in overall performance.
Integrated Impact
The combined effect of insulation, solar PV, and electric storage heating delivered a dramatic uplift in energy efficiency and usability.
PROJECT IMPACT
Lower heat loss, improved comfort, reduced energy demand, and stronger long-term performance
The completed works transformed the property into a more comfortable and energy-efficient home. The external wall insulation reduced heat loss, the solar PV system introduced renewable generation, and the electric storage heaters provided a more practical and controlled internal heating solution.
Together, these measures created a more resilient and modern residential property better aligned with present-day efficiency expectations and lower long-term running costs.
Dramatic reduction in heat loss
Lower overall energy consumption
Improved indoor comfort
Reduced energy costs and stronger EPC outcome
VISUAL INSTALLATION GALLERY
From exposed brickwork and system build-up to finished render, solar installation, and completed heating improvements
PLANNING A COMPLETE ENERGY UPGRADE?
Talk to AEG about insulation, solar, and heating retrofit solutions
We deliver coordinated residential energy upgrades designed to improve thermal performance, reduce energy demand, and create more efficient, comfortable homes.
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