Better energy savings than BMS

April 2019 Integrated Solutions, Security Services & Risk Management, Commercial (Industry)

More than 35% of the power required to run a building is consumed in one place: the central chilled water plant. While there is value in connecting the building management system (BMS) to schedule plant run time, very little beats central plant optimisation (CPO) software for true energy savings – it optimises the performance of all components.

Russell Hattingh
Russell Hattingh

While CPO solutions have been available for some time, organisations often assume that a BMS performs the same function so having both is an unnecessary duplication. While BMS’ can apply general rules, such as scheduling outputs according to occupancy levels, it’s CPO software with its ability to constantly and consistently maximise the efficiency and performance of the entire plant, taking into consideration all plant components, as well as unique variables, that is delivering true breakthrough benefits.

Why is CPO important in South Africa?

South African organisations must lower energy consumption to address the country’s twin challenges of insufficient energy capacity and rising costs. Budgets are under pressure but, at the same time, organisations are being compelled to reduce their carbon footprints.

Many are taking the common-sense approach of replacing old plant equipment and systems with high-efficiency systems, such as variable speed drives and BMS technology. While both offer benefits, they are discovering that it is CPO technology that takes optimisation to the next level.

The hands-free relational control technology embedded in CPO solutions is able to constantly, consistently maximise the efficiency and performance of the entire plant. It takes into consideration every component part, including the chillers, pumps and cooling towers, and in addition, it factors in primary as well as secondary and tertiary circuit components in large installations, aligning them with demand and site priorities, and optimising performance and outputs.

Setting CPO up

CPO is a stand-alone unit that communicates with plant components and the BMS using standard protocols (BAcnet). It requires some setup. To optimise performance of the plant, it’s important to ensure unique variables are integrated into decision-making and site priorities are set.

CPO software takes multiple variables into consideration, pinging plant components for information but also tapping in the BMS and big data where relevant. Variables may include the combination of equipment on the site and its configuration, equipment conditions and availability, occupancy levels, ambient environment, operating conditions, the weather forecast and more. CPO also takes note of configured site priorities – some sites, such as pharmaceutical manufacture or ICT hosting facilities, may require always-on environmental control, others will happily shut plant equipment down when the building empties.

Because there is now so much information available and the cost of getting it wrong is so high, manual central plant management, which is exposed to human error, has become almost irresponsible. Consider the annual cost of running a plant at even 30% higher capacity than is necessary for a year, or the cost of shutting chillers down even just two hours later than is needed every day.

Benefits of CPO

• Cost effective optimisation based on proven best practices for any system type/configuration (24 standard chiller plant profiles or custom configuration).

• System is configured on-site with no disruption to operations.

• CPO is compatible with most building automation systems.

• Real-time dashboards to view operating efficiency, and view trends.

The more you know about your plant performance, the more energy you can save. CPO gives organisations immediate access to critical information, giving them the visibility they need to manage energy and operating costs and significantly improve the performance potential of their plant for years to come.

CPO’s web-based, real-time measurement, verification and management dashboards make equipment performance more visible. It will continuously collect, analyse and report on plant operating data, enabling the organisation to view operating efficiency in real time, as well as see both short and long-term trends.

CPO is going to become critical to maximise the operational efficiency of chiller plants and lower energy usage and cost. Just take a look at the CPO solution we have deployed at Stanford University (https://www.youtube.com/watch?reload=9&v=J5dnIYSIilM). Similar implementations are already happening locally, with great results.

For more information contact Russell Hattingh, Johnson Controls, +27 11 921 7129



Credit(s)




Share this article:
Share via emailShare via LinkedInPrint this page



Further reading:

Securing perimeters of secure locations
November 2019, Axis Communications SA, Modular Communications, Hikvision South Africa, Nemtek Electric Fencing Products, Technews Publishing, Stafix , Government and Parastatal (Industry), Perimeter Security, Alarms & Intruder Detection, Integrated Solutions
Hi-Tech Security Solutions asked a number of companies offering perimeter security solutions for their insights into protecting the boundaries of national key points.

Read more...
Vox expands managed services with Mimecast
October 2019, Vox Telecom , Integrated Solutions
Vox has added Managed Mimecast to its suite of managed service offerings to provide customers with a more effective way of safeguarding their emails against spam and malicious attacks.

Read more...
Stolen credentials on the Dark Web
October 2019 , Cyber Security, Security Services & Risk Management
Over 21 million credentials belonging to Fortune 500 companies, 16 million of which were compromised during the last 12 months, are up for sale.

Read more...
Stolen credentials on the Dark Web
October 2019 , Cyber Security, Security Services & Risk Management
Over 21 million credentials belonging to Fortune 500 companies, 16 million of which were compromised during the last 12 months, are up for sale.

Read more...
Enterprise security must change
October 2019 , Cyber Security, Security Services & Risk Management
The recent wave of cyberattacks against local banks has highlighted the importance of protecting data against malicious users.

Read more...
Digitising Maslow’s Hierarchy of Needs
October 2019 , Integrated Solutions, IT infrastructure
Mobile technology has the potential to change how Africa approaches patient and healthcare, says Phathizwe Malinga, managing director, SqwidNet.

Read more...
Body-worn cameras transforming security
October 2019 , CCTV, Surveillance & Remote Monitoring, Security Services & Risk Management
Police Service Northern Ireland now has over 7 000 officers using 2 500 cameras covering approximately 173 000 incidents each year.

Read more...
Protecting your customers’ data
October 2019 , Training & Education, Security Services & Risk Management
Simon Murrell, head of development and executive director at BrandQuantum says companies need to protect their customers from identity theft and data breaches.

Read more...
Intelligent analytics and the brains to match
September 2019, Bosch Building Technologies , CCTV, Surveillance & Remote Monitoring, Integrated Solutions
What if the brains behind our security cameras could be trained to improve their cognitive ability to pay attention, learn, and problem-solve according to specific rules and situations?

Read more...
AI-powered autonomous Drone-in-a-Box
September 2019 , CCTV, Surveillance & Remote Monitoring, Integrated Solutions
Organisations in the mining, energy and industrial, oil and gas, ports and terminals sectors can optimise security and business operations, whilst reducing risks and operational costs

Read more...