Hallidays already had achieved Silver and Bronze Environmental Business Pledge Award from Groundwork, but they had ambitions to reduce their carbon footprint further, become more efficient, and aim for the Gold standard. To begin this process they asked Bosci to conduct a holistic energy review to look at all areas of energy efficiency.
Our review showed that the first thing to focus on was capping the energy regulation. We then reviewed and measured exact lighting energy usage. As it is a relatively modern building, wholesale changes weren’t necessary, but we were able to make some cost saving suggestions. Our findings showed that some behavioural changes would also help save money.
Small things like encouraging the team to check all lights and screens were off when they left would make a considerable difference to energy usage.
Initial quotes from another renewable energy business initially made the project look financially unfeasible for Hallidays. But our know-how enabled us to propose a much leaner and efficient system that would deliver better results, need less equipment, and half the cost of the project.
We carefully took the time to measure Hallidays’ energy usage and proposed a system that more accurately matched their needs and provide a much better financial return. And the good news is that the system is already performing ahead of expectation.
In the farm the old electric storage heaters were expensive and inefficient. The coal fired aga was continually burning all day, every day of the year.
With energy prices constantly rising, the logical way forward was to aim for the maximum insulation for all building elevations and to go for a ground source heat pump that would deliver the greatest heat for the lowest electric consumption.
It was decided to replace all the windows and doors for A1 double glazing, the cavity walls were internally, insulated with 125mm Thermolite blockwork, and the roof space and cellar floors received upgraded insulation.
A Kensa 12kW heat pump would supply all the hot water needed without the use of an immersion heater. Underfloor heating was also installed.
On the first floor 50mm of Xtratherm insulation was inserted between the joists. The roof insulation was increased from 200mm to 300mm as recommended by Green Deal.
Finally the roof was covered with 16 photovoltaic (PV) panels giving up to 4kW of power.
Each apartment at Wharf Street has solar thermal hot water free of charge during the summer months saving approximately £200 per year on their energy bills.
This system provides 70% of the residents hot water throughout the year - even on cloudy days.
Our expertise ensured that our client achieved building regulations on the project for their planning application.
By using solar energy to heat the water and cut bills, we have helped to ensure a bright future for this Bosci customer.
The increase in electricity prices, coupled with the milk prices dropping considerably, resulted in a testing time for the owners. The farmer took the decision to reduce the electricity bills by investing in renewable technologies.
After consultation, it was decided that a large PV array, along with a wind turbine and heat recovery, were the best options for the particular site and energy requirements.
The 11kW Gaia turbine has so far produced 33200 kWh in the last
20 months, and has given an 11% return on the farm’s investment.
The 10kW PV installation has produced 7550kW in the last 12 months giving a 14% return on investment.
The heat recovery system takes the heat from the milk, and uses it to heat a 300-litre storage vessel, giving 600 litres of hot water each day.
All of these clever Bosci initiatives have resulted in the electricity bills coming down from over £700 per month to under £400 per month.
Naturally this has resulted in one very happy farmer.