ENERGY
ENVIRONMENTALLY FRIENDLY HQ
W
hen PRIVA Building effects of mechanical heating and cooling developed a library of software programs
Intelligence required - layers of hot and cold air that result in that manage heat and cold storage in the
more office space at hot heads and cold feet and wells, drainage options, and that monitor
its Dutch uncomfortable drafts due to warm or cold minimum and maximum pressures,
headquarters the air being pushed around the building - leakage, flow rate, and more. In
obvious answer was have been eradicated. addition, for the end-user, there is a range
to develop a new purpose-built structure of energy monitoring programs that
on the existing headquarter site. ENERGY EFFICIENT UNDERGROUND provide data relating to, for example, total
But rather than erect just another office STORAGE: The foundation of the net stored energy and charged and
complex, the company drew on its building’s heating and cooling system is discharged energy. Minimum, maximum
knowledge and experience in building an underground thermal energy storage and the average status of the injection
controls and energy management (UTES) system incorporating separate cold and extraction temperatures are
and constructed an energy-efficient and warm wells, heat exchangers and accessible, together with information
building that utilizes an underground heat pumps. The underground springs relating to groundwater displacement.”
thermal storage system that is capable can supply up to 437kW of heating and
of providing heating and cooling up to 465kW of cooling. Heating and BMS: Heating, cooling and lighting is
throughout the building, eliminating the cooling is simultaneously supplied to the controlled by a PRIVA BMS incorporating
need for boilers and chillers, managed, building and has the ability to respond Compri HX and Comforte CX controllers.
obviously, by a PRIVA building quickly to track changes in the weather. Compri HX is a main plant controller that
management system (BMS). Previous installations have shown that an comes complete with embedded Internet
The new campus site provides UTES system can reduce energy technology that supports browser
8,200m
2
of office space, excluding the consumption costs by 40% - 80%, operation, alarm reporting by email and
atrium, and when fully occupied will dependent on its application. data transfer via XML. At the PRIVA
accommodate 500 staff. PRIVA currently As Arnood Rook, Project Coordinator campus site, Compri HX controllers
employ around 400 people of which Application Development for PRIVA manage the UTES system, heat pumps, air
approximately 300 work in the Building Intelligence, responsible for UTES handling units, and heat wheel.
Netherlands; the remainder operate within explained, “Experience shows that The Comforte CX is an intelligent
European branch offices including the UK. temperatures of up to 80 - 90°C are individual room controller capable of
Inside, the company has chosen an achievable in the warm well, with low providing integrated control of a number
open-plan layout confident that the temperature heat storage at 40 - 45°C. of devices including climate control
precise control of the building services will The introduction of the UTES system has equipment, lighting and sunblinds. At the
result in a comfortable working meant that the new PRIVA building can PRIVA campus, each floor is zone
environment for everyone. The operate perfectly efficiently without the controlled with a dedicated Comforte CX
application of chilled ceilings and natural need for boilers or chillers. managing lighting requirements and
ventilation means that many of the side “To control the UTES, we have comfort conditions for its area. CX units
ENERGISING EUROPE: A REAL MARKET WITH SECURE SUPPLY
T
he European Commission gas supplies. Guarantees of fair ownership and operation should be
has adopted a package of competition with third country companies “unbundled”. This refers to the separation
legislative proposals to ensure are also strengthened. between the network operation of electricity
a real and effective choice of “An open and fair internal energy and gas from supply and generation
supplier and benefits to every market is essential to ensure that the EU activities. The proposals make it clear that
single EU citizen. The can rise to the challenges of climate the Commission’s preferred option in this
Commission’s proposals put consumer change, increased import dependence and respect is ownership unbundling - in other
choice, fairer prices, cleaner energy global competitiveness. This is about words that a single company can no longer
and security of supply at the centre of getting a better deal for consumers and own both transmission and be occupied in
its approach. business and making sure that third country energy production or supply activities. In
The package promotes sustainability by companies respect our rules”, explained addition, the Commission proposes a
stimulating energy efficiency and European Commission President Barroso. second option, the “independent system
guaranteeing that even smaller companies, To make the internal market work for operator” which makes it possible for
for instance those that invest in renewable all consumers whether large or small, and existing vertically integrated companies to
energy, have access to the energy market. to help the EU achieve more secure, retain network ownership, but provided that
A competitive market will also ensure competitive and sustainable energy, the the assets are actually operated by a
greater security of supply, by improving Commission is proposing a number of company or body completely independent
the conditions for investments in power measures to complement the existing rules. from it. Either one of these options will
plants and transmission networks, and – Separation of production and supply create new incentives for companies to
thus help avoid interruptions in power or from transmission networks: Network invest in new infrastructure, inter-connection
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SUSTAINABLE FM | OCTOBER 2007
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