pa-energy London metering and energy management systems | OPTIFLUX 2000 electromagnetic flowmeters for building management energy monitoring “The London Hospital” Case
PA-Energy is a service and system integration provider of buildings and sites energy and water metering, monitoring and analytics. The services and solutions assist energy managers to better manage their buildings and sites to reduce energy and water consumption. We work to resolve problems with metering and submetering matters.
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optiflux-200-flowmeter

OPTIFLUX 2000 electromagnetic flowmeters for building management energy monitoring “The London Hospital” Case


 Plant Room Metering / (“The London hospital case”)


1. Application of magnet flow technology in metering hot water services and chilled water services

2. Basic Principles of thermal energy metering

3. Considerations when installing large bore flow meters

KROHNE’s OPTIFLUX 2000 installed on the LTHW system


For many years now ‘Energy’ has been a hot topic. Energy prices are constantly under the spotlight, and pressure is consistently being applied to businesses and consumers alike to reduce their carbon footprint in order to help meet the government targets for reducing the effects of climate change.

For large infrastructure sites such as hospitals, large office complexes and arenas, energy management is a very important factor in optimising energy usage which in turn can reduce both utility costs and carbon emissions. Given the significant amounts of energy, including gas and water these buildings use, it is vital to have a management process in place to monitor on site usage and identify areas of high consumption. This data can then be used to look at ways of optimising energy usage.

One such example is a London based hospital that required their energy and water consumption to be monitored and evaluated against KPI’s as part of their management process. PA Energy, a London based energy and water services company with an impressive track record in assisting customers to reduce their utility demand and costs, were contacted and asked to review the metering in 3 blocks whilst identifying any problems with heat and chilled water metering and provide a resolution fix.

Heat metering requires three values; the flow rate, the temperature of the supply heat transfer fluid (usually water) and the temperature of the fluid in the return leg of the system.  These values can calculate the energy consumption which can be reviewed and savings potentially made. It was on the LTHW (low temperature hot water) system that PA Energy required a reliable flowmeter to measure the flow rate of the water up to 80⁰C at flow rates of between 5 and 8.5 m3/h. They decided on the OPTIFLUX 2000 electromagnetic flowmeter from KROHNE, the world market leaders in electromagnetic flowmeter technology.

Designed for water and wastewater applications the OPTIFLUX 2000 was the ideal choice. It provides both high accuracy and reliability and is maintenance free. It comes with a wide range of industry approvals and with a huge installed base, it gave PA Energy confidence that they were installing a meter they could trust.

Percy Albuquerque, managing director of PA Energy comments; “Installing the correct flowmeter on a project is vital. We need to be confident that it can meet the demands of the application and provide accurate and reliable data readings that can be used in calculating energy consumption.” He continues, “KROHNE offered a solution that ticked all the boxes. We have now installed a number of  OPTIFLUX 2000 flowmeters and are very happy with how they are performing.”

The systems provided by PA Energy, using the OPTIFLUX 2000 will enable the site staff to monitor utility consumption and evaluate demand whilst identifying opportunities for cost savings and carbon reduction.

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Learn about Krohne

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Authors: PA Energy / Krohne

KROHNE Ltd

About KROHNE

KROHNE is a full-service provider for process measuring technology for the measurement of flow, mass flow, level, pressure and temperature as well as analytical tasks. Founded in 1921 and headquartered in Duisburg, Germany, the company employs over 3,600 people all over the world and is present on all continents. KROHNE stands for innovation and maximum product quality and is one of the market leaders in industrial process measuring technology.

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