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:

Cyber resilience is more than cybersecurity
Technews Publishing Cyber Security Integrated Solutions IT infrastructure
Hi-Tech Security Solutions held a round-table discussion focusing on cyber resilience and found that while the resilience discipline includes cybersecurity, it also goes much further.

Read more...
Revamping Liberty Life’s reception area
Turnstar Systems Access Control & Identity Management Commercial (Industry)
Turnstar supplied and installed four Speedgate Express lanes, each 550 mm wide, as well as two Pulse Special Needs Gates for wheelchair access to Liberty Life.

Read more...
Numerous challenges for transport and logistics
Transport (Industry) CCTV, Surveillance & Remote Monitoring Security Services & Risk Management Logistics (Industry)
Operators are making significant investments in automation and digitalisation in order to address security concerns, improve loss prevention as well as efficiency, and reduce unit order costs.

Read more...
Defining the resilience of cybersecurity
Cyber Security Security Services & Risk Management
Cyber resilience is less buzzword and more critical business strategy as the cybercrime landscape grows in intent and intensity.

Read more...
A key to urban transport challenges
Axis Communications SA Transport (Industry) CCTV, Surveillance & Remote Monitoring Integrated Solutions Logistics (Industry)
There are many enabling technologies that can impact transportation in South Africa, but a good place to start is by considering the applications for smart physical technology with the ability to collect and respond to data.

Read more...
Hikvision aims for solutions
Technews Publishing Hikvision South Africa Editor's Choice CCTV, Surveillance & Remote Monitoring News Integrated Solutions Conferences & Events
Hikvision recently held a roadshow titled Industry X, where the company highlighted its latest products and solutions, supported by partners and distributors.

Read more...
Technology and the future of security installation in South Africa
Editor's Choice Integrated Solutions Security Services & Risk Management
What are the technologies and trends shaping installation, service and maintenance teams globally, and how will they shape South African businesses today and in the future?

Read more...
Upgraded security and AI monitoring at upmarket estate
Watcher Surveillance Solutions Editor's Choice CCTV, Surveillance & Remote Monitoring Integrated Solutions Residential Estate (Industry)
Estate upgrades and enhances its security through a partnership between surveillance specialist Watcher and the incumbent guarding company.

Read more...
The technology wave implications for staff mismatches in control rooms
Leaderware Editor's Choice Security Services & Risk Management
An industry habit of looking at control rooms through a physical security lens has increasingly left clients and staff at a disadvantage in keeping up with control room technology and demands.

Read more...
Streamlining processes, integrating operations
Security Services & Risk Management Integrated Solutions Transport (Industry) Logistics (Industry)
With Trackforce Valiant, Airbus now has one single platform that connects its security guards, supervisors and management across its organisation.

Read more...