VUR Village Hotels Ltd (VUR) is a chain of 30 hotels across the UK. Carbon Credentials is a trusted partner of VUR having supported the Group’s:
- Energy data gathering and reporting
- Carbon Reduction Commitment reporting and audits
- ESOS and site audits for all hotels
The ESOS energy audits undertaken at seven VUR Village hotels identified potential for improvements to the Building Management System (BMS) control strategy and functionality across numerous sites. VUR has, as a consequence, commissioned Carbon Credentials to deliver further BMS optimisation services across the portfolio. This case study details the process and output at Village Maidstone.
The objective of this project was to optimise control of the major building services for the hotel, achieved by utilising a web-based data analytics platform alongside a comprehensive site audit. This led to improvements in energy efficiency, whilst also improving occupant comfort.
To optimise BMS controls, Carbon Credentials assembled a team to undertake monitoring, a technical survey and control strategy development activities that delivered improvements in system performance and reductions in energy consumption.
The Carbon Credentials team has been working in collaboration with Site Maintenance Teams and incumbent BMS Maintenance Providers to make best success of the project and ensure sustainable consumption reduction.
This project was forecast to save 59,000 kWh of electricity and 241,000 kWh of gas, equating to a cost saving of over £17,000 per year. Further opportunities that require some additional investment can lead to an additional saving of over £16,000 per year. In total, this was a forecast saving of over £33,000, as well as a number of recommendations relating to life cycle replacement and system resilience.
Through the information obtained from the data acquisition device, site audit and collaborative working, a list of agreed changes were implemented to the BMS to achieve energy and cost savings.
Figure 1: Bolier Operation Visualisation
Significant benefits were immediately achieved and clearly visible. The site had previously ran on two boilers, however it can now support heating requirements using 1 boiler only, even during the coldest outside conditions. Furthermore, AHUs were programmed in an energy efficient manner to take advantage of recirculated air and free cooling.
Figure 2: AHU Damper Operation
The software changes alone are now forecast to save £18,000 – £20,000 per year. Additional savings will also be identified in the summer when the chiller is in operation. Savings will be confirmed using Carbon Credentials Measurement and Verification process, which is aligned with IPMVP standards.
The BMS Optimisation Performance Managed Service allows the remote monitoring of plant equipment meaning that issues and faults can be proactively identified and rectified. At Village Maidstone the Carbon Credentials team identified a boiler fault the morning that it occurred. The fault was causing significant temperature and consumption fluctuations. The team attended site on that day and rectified the fault. This could have cost over £1,000 in energy, caused occupant discomfort and may have damaged the plant if not rectified.
Figure 3: Boiler Energy Consumption
Figure 4: Boiler fault identification and rectification
- Reduced Energy Costs, Consumption and Carbon
- Improved Comfort Conditions & Customer Experience
- Reduced Maintenance and Asset Costs
- Daily Proactive Performance Maintenance
- Outsourced Energy Management Service
“The realisation that tweaks can be made and have an impact is staggering. I did not realise that so much energy intensive plant equipment ran for such extensive periods of time. The reception and public areas felt better during a walk around post-implementation.” Ian Giblin, Maintenance Manager