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CASE STUDY

St. John’s Contact Centre, Seaham.

Learn how Delta-T reduced energy consumption by ‘20%’ and saved St. John’s Contact Centre real money on their utility bills.

EVALUATION PERIOD
3 MONTHS
Duration of Delta-T testing from Feb – April 2023
ENERGY SAVINGS
20%
In total, savings equated to 20% CO₂, 5.4 tonne savings.
NETZERO CONTRIBUTION
100%
Additional contribution to sustainability objectives

Introduction.

Delta-T is a chemical additive that will significantly reduce the running costs on heating and cooling closed loop systems.

The performance of SafeSol’s Delta-T was trialled in the underfloor heating system at Seaham St John’s Contact Centre. This building houses a large library and several council offices dealing with all council services in the Seaham area. The building has an atrium and a substantial glass frontage. It is open to the public from 8.30 from Monday to Friday. The library is open on Saturday mornings.

Read on to discover more about this case study …

The Heating System.

Seaham Library has two Viessmann Boilers CIB 200 that supply underfloor heating throughout the building. The underfloor heating is constructed of polyethylene pipes. The total system volume was calculated at 2200 litres from a drawing provided by Durham Council.

The Durham Council had made several changes to the way the system operates by adjusting BMS settings and decided to add new formulation Delta-T as a final energy reduction measure.

The Installation.

Delta-T was installed in the system at a rate of 1 litre Delta-T to 100 litres of system water volume. 22 litres of Delta-T were added to the system on the 15th of February for optimum energy savings. Water quality samples were taken prior to and after the addition of Delta-T.

The Monitoring.

The gas usage in this building is influenced by the external temperature. (all buildings are subject to population variation but this building which is open to the public should be less affected by this). The building because of the amount of external glass will be affected by sunlight heating the building – This can distort the Heating Degree Days (HDD) which reflects outside ambient temperature.

Firstly, a comparison was made of the energy savings in February, March, and April 2024 with the corresponding months of 2023. These savings would comprise savings made by Durham Council and savings made by the introduction of Delta-T. Then a further comparison was made between March and April 2024 with November and December 2023 when all the Durham Council modifications had been completed, and any savings made were solely attributable to Delta-T.

Full months were used and normalised using the Degree Days from Newcastle Airport.

THIS GAVE AN OVERALL SAVING OF 20% FROM THE INSTALLATION OF DELTA-T

The Outcome.

The calculations show an overall saving (Durham Council energy saving measures and Delta-T) of 30% with 20% of these savings directly attributable to Delta-T. It is thought that these savings may be conservative because of the amount of glass in the building and the use of plastic pipe for heat transfer. All UWS testing was done on metal only systems.

Based on an annual gas usage of 150,000kWh, the figure represents a gas saving of 45,000 kWh (Delta-T: 30,000 kWh) and a CO2 reduction of 8.0 tonnes. (Delta-T: 5.4 tonnes) See Figure 1.

The trial at Seaham St John’s Contact Centre continues.

¹ Glass will magnify sunlight contributing to heat in the building – This can happen even when the outside temperature is cold – distorting the gas usage/HDD normalisation.

¹Sources Centre for International Environmental Law, Carbon Tracker, Domer et al, Franklin Associates etc published by COMET – Coalition on Materials, Emissions Transparency

²The carbon Footprint of Potable Water Danfoss Engineering Tomorrow.

Before and After Delta-T.

Delta-T had an amazing impact on the underground heating system at Durham Council’s Seaham St John’s Contact Centre. Although Durham had optimised their system using the building management system (BMS) they still achieved a reduction in gas usage from their heating system of 20%.

WITHOUT DELTA-T			WITH DELTA-T
Month	Gas Usage kWh	HDD	Month	Gas Usage kWh	HDD	Energy Savings
Feb 2023	20,410	175.2	Feb 2024	20,700	260	32%
Mar 2023	29,806	300	Mar 2024	17,322	273	36%
Apr 2023	18,008	238	Apr 2024	13,400	227	22%
					AVERAGE SAVINGS	30%

The chart above illustrates that the energy savings include the client’s contributions from system optimizations, which account for a total of 10%. This amount is incorporated into the totals displayed on the right.

Additional Savings.

This building is considered as energy efficient. Any out of hours gas usage will be brought on by the frost setting. One of the benefits we have noticed when using Delta-T is that buildings heat up twice as fast than when using untreated water in the circuit. (Proven in council buildings operated by Bradford Metropolitan Council and South Tyneside Council). Consideration could be given to turning the heating on an hour later than normal. This operation has saved a lot of energy in other buildings.

¹ Sources Centre for International Environmental Law, Carbon Tracker, Domer et al, Franklin Associates etc published by COMET – Coalition on Materials, Emissions Transparency

²The carbon Footprint of Potable Water Danfoss Engineering Tomorrow.

Why Choose Delta-T?

Choosing Delta-T means choosing to invest in an efficient future. Our product works diligently to enhance the performance of your heating and cooling systems, helping you to significantly reduce energy costs while promoting sustainable practices.

SafeSol is proud to lead the way in water treatment innovations, and we invite you to explore the benefits of Delta-T for your organisation. Experience a new era of energy-saving solutions with SafeSol’s expertly crafted Delta-T.

CASE STUDY

St. John’s Contact Centre, Seaham.

Learn how Delta-T reduced energy consumption by ‘20%’ and saved St. John’s Contact Centre real money on their utility bills.

Introduction.

The Heating System.

The Installation.

The Monitoring.

THIS GAVE AN OVERALL SAVING OF 20% FROM THE INSTALLATION OF DELTA-T

The Outcome.

Based on an annual gas usage of 150,000kWh, the figure represents a gas saving of 45,000 kWh (Delta-T: 30,000 kWh) and a CO2 reduction of 8.0 tonnes. (Delta-T: 5.4 tonnes) See Figure 1.

¹ Glass will magnify sunlight contributing to heat in the building – This can happen even when the outside temperature is cold – distorting the gas usage/HDD normalisation.

¹Sources Centre for International Environmental Law, Carbon Tracker, Domer et al, Franklin Associates etc published by COMET – Coalition on Materials, Emissions Transparency

²The carbon Footprint of Potable Water Danfoss Engineering Tomorrow.

Before and After Delta-T.

The chart above illustrates that the energy savings include the client’s contributions from system optimizations, which account for a total of 10%. This amount is incorporated into the totals displayed on the right.

Additional Savings.

¹ Sources Centre for International Environmental Law, Carbon Tracker, Domer et al, Franklin Associates etc published by COMET – Coalition on Materials, Emissions Transparency

²The carbon Footprint of Potable Water Danfoss Engineering Tomorrow.

Why Choose Delta-T?

Let’s work together towards a more energy-efficient future! Contact us today about Delta-T

Delta-T is a SafeSol Product

Trademarks and Awards

Accreditations

Terms & Conditions

CASE STUDY

St. John’s Contact Centre, Seaham.

Learn how Delta-T reduced energy consumption by ‘20%’ and saved St. John’s Contact Centre real money on their utility bills.

Introduction.

The Heating System.

The Installation.

The Monitoring.

THIS GAVE AN OVERALL SAVING OF 20% FROM THE INSTALLATION OF DELTA-T

The Outcome.

Based on an annual gas usage of 150,000kWh, the figure represents a gas saving of 45,000 kWh (Delta-T: 30,000 kWh) and a CO2 reduction of 8.0 tonnes. (Delta-T: 5.4 tonnes) See Figure 1.

1 Glass will magnify sunlight contributing to heat in the building – This can happen even when the outside temperature is cold – distorting the gas usage/HDD normalisation.

1 Sources Centre for International Environmental Law, Carbon Tracker, Domer et al, Franklin Associates etc published by COMET – Coalition on Materials, Emissions Transparency

2 The carbon Footprint of Potable Water Danfoss Engineering Tomorrow.

Before and After Delta-T.

The chart above illustrates that the energy savings include the client’s contributions from system optimizations, which account for a total of 10%. This amount is incorporated into the totals displayed on the right.

Additional Savings.

1 Sources Centre for International Environmental Law, Carbon Tracker, Domer et al, Franklin Associates etc published by COMET – Coalition on Materials, Emissions Transparency

2 The carbon Footprint of Potable Water Danfoss Engineering Tomorrow.

Why Choose Delta-T?

Let’s work together towards a more energy-efficient future! Contact us today about Delta-T

Delta-T is a SafeSol Product

Trademarks and Awards

Accreditations

Terms & Conditions

¹ Glass will magnify sunlight contributing to heat in the building – This can happen even when the outside temperature is cold – distorting the gas usage/HDD normalisation.

¹Sources Centre for International Environmental Law, Carbon Tracker, Domer et al, Franklin Associates etc published by COMET – Coalition on Materials, Emissions Transparency

²The carbon Footprint of Potable Water Danfoss Engineering Tomorrow.

¹ Sources Centre for International Environmental Law, Carbon Tracker, Domer et al, Franklin Associates etc published by COMET – Coalition on Materials, Emissions Transparency

²The carbon Footprint of Potable Water Danfoss Engineering Tomorrow.