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How can you design sustainable building services without increasing costs?

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Building services are the systems that provide comfort, safety, and functionality to a building, such as heating, ventilation, lighting, water, and power. They account for a significant part of the energy consumption and environmental impact of a building, so designing them sustainably is crucial for reducing greenhouse gas emissions and operating costs. However, many engineers face the challenge of balancing sustainability and cost-effectiveness, as some green solutions may require higher upfront investment or maintenance. In this article, you will learn how you can design sustainable building services without increasing costs, by following some practical tips and applying some innovative strategies.

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Royal NWOKOCHA

Green Building and Energy Efficiency master’s Student at UM6P - Mohammed VI Polytechnic University| Bsc in Civil…
Manoj Singh

Manager Maintenance at SET- Qatar, Free Helpdesk Forum.

1 Assess the building's needs

The first step to design sustainable building services is to understand the specific needs and constraints of the building and its occupants. You should conduct a thorough analysis of the site, climate, orientation, layout, function, and usage patterns of the building, and identify the optimal performance criteria and targets for each service. This will help you to avoid over-sizing or under-sizing the systems, and to select the most suitable technologies and materials that match the building's requirements and context.

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Manoj Singh

Manager Maintenance at SET- Qatar, Free Helpdesk Forum.
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Here are some ways to design sustainable buildings without increasing costs: Select the right site Orientate the building for passive solar exposure Improve insulation Use natural ventilation Purchase energy-efficient appliances and fixtures Use renewable energy sources Harvest rainwater Install smart appliances Recycle and reuse construction waste Here are some other sustainable building practices: Develop green spaces Create sustainable transportation systems Design neighborhoods to reduce ecological footprints Design buildings that are more environmentally friendly Design buildings that are better able to withstand and adapt to environmental challenges

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Costel Nastac

Construction Consultant | Project Monitoring
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Conduct a life cycle cost analysis to evaluate the total cost of ownership over the lifespan of building systems. Consider not only initial capital costs but also operating, maintenance, and replacement costs. Select sustainable technologies and strategies that offer the best long-term value and return on investment.

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Guillaume R.

Responsable commercial - Développement activité bardage
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Evaluer les besoins du batiment constitue la première étape vers l'optimisation du projet. Cette analyse est à faire dans les premiers pas du projet, et pourra, et devra impliquer des changements de conception afin d'utiliser des matériaux plus durables, plus verts, ou simplement changer de systèmes de construction dans un but de développement durable.

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2 Optimize the passive design

The passive design of a building refers to the architectural features that minimize the need for mechanical or electrical systems to provide comfort and functionality. For example, the shape, orientation, insulation, shading, windows, and natural ventilation of a building can influence the amount of heat gain or loss, daylight availability, and air quality. By optimizing the passive design of a building, you can reduce the demand for heating, cooling, lighting, and ventilation services, and thus save energy and costs. You should also consider the integration of renewable energy sources, such as solar panels, wind turbines, or geothermal heat pumps, to generate clean and low-cost power for the building.

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Royal NWOKOCHA

Green Building and Energy Efficiency master’s Student at UM6P - Mohammed VI Polytechnic University| Bsc in Civil Engineering | DUT in Civil engineering
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By correctly studying the envelop of our structure and correctly constructing our building based on the optimal results gotten from the study, we can optimize the passive aspect of our building which will in turn lower the need to integrate active equipments to increase the comfort the building gives, we can optimize the passive design starting from something as little as the Orientation of the building and other architectural choices like the size and positioning of windows and also the choice of materials used in the envelop as well as the isolation etc, a lot can be done to make the passive design very efficient and in a case where we still need to integrate some equipments, renewable energy sources should be implemented.

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Costel Nastac

Construction Consultant | Project Monitoring
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Prioritize energy efficiency measures to reduce energy consumption and operating costs. Incorporate passive design strategies such as orientation, day lighting, natural ventilation, and shading to minimize the need for mechanical systems. Specify high-efficiency HVAC equipment, lighting fixtures, and appliances to optimize energy performance.

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Guillaume R.

Responsable commercial - Développement activité bardage
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L'optimisation passive est à la fois la plus facile et la plus importante. Elle permet très souvent d'économiser l'échelle du projet car elle permet d'éviter certaines dispositions constructives (telles que de l'isolation supplémentaire, de la consommation d'énergie pour refroidir l'intérieur...).

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3 Use efficient equipment and controls

Another way to design sustainable building services is to use equipment and controls that are efficient, reliable, and adaptable. You should choose devices that have high energy ratings, low emissions, and long lifespans, and that can be easily maintained and upgraded. You should also install smart controls that can monitor, regulate, and optimize the operation of the systems, based on the real-time conditions and needs of the building and its occupants. For example, you can use sensors, timers, thermostats, dimmers, and occupancy detectors to adjust the temperature, lighting, and ventilation levels according to the occupancy, activity, and preference of the users.

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Costel Nastac

Construction Consultant | Project Monitoring
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Explore opportunities to integrate renewable energy sources such as solar photovoltaics, wind turbines, or geothermal systems into the building's energy infrastructure. Generate on-site renewable energy to offset utility costs and reduce reliance on fossil fuels, while taking advantage of available incentives and rebates.

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Guillaume R.

Responsable commercial - Développement activité bardage
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Ces sytèmes optimisés et intelligent sont de plus en plus courants, ce qui nous indique que nous allons dans la bonne direction. On le voit par exemple sur les systèmes de désenfumage qui devient de plus en plus intelligents.

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4 Implement demand-side management

Demand-side management is a strategy that aims to reduce the peak demand and overall consumption of energy and water in a building, by influencing the behavior and choices of the users. You can implement demand-side management by providing information, feedback, incentives, or penalties to the users, to encourage them to use the building services more efficiently and responsibly. For example, you can install meters, displays, or dashboards that show the real-time or historical data on the energy and water usage and costs of the building or each unit, and compare them with the benchmarks or goals. You can also offer rewards or discounts to the users who achieve certain savings or reductions in their consumption.

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Costel Nastac

Construction Consultant | Project Monitoring
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Design building systems holistically to maximize efficiency and performance while minimizing costs. Integrate HVAC, lighting, water, and other systems to work synergistically and minimize energy and resource consumption. Use building automation and controls to optimize system operation and respond dynamically to changing conditions.

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Guillaume R.

Responsable commercial - Développement activité bardage
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La gestion de la demande est sans doute la dernière mesure mise en place dans le projet. Bien qu'utile pendant la vie du projet, elle ne substituera jamais aux optimisations constructives, tant sur la conception (choix des matériaux) que sur la réalisation.

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5 Evaluate the life-cycle costs

The final tip to design sustainable building services without increasing costs is to evaluate the life-cycle costs of the systems, rather than focusing only on the initial costs. The life-cycle costs include the capital, operating, maintenance, and disposal costs of the systems, as well as the environmental and social costs associated with their impacts. By using a life-cycle approach, you can compare the long-term benefits and trade-offs of different options, and choose the ones that have the lowest total costs and the highest value over the lifespan of the building. You can also identify the opportunities for improvement and optimization of the systems, and monitor their performance and savings over time.

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Guillaume R.

Responsable commercial - Développement activité bardage
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Evaluer les co?ts de cycle de vie est un moyen d'identifier les problèmes que le projet pourra rencontrer lors de son cycle de vie. Ne pas faire cette évaluation pourrait conduire à des surconsommation énergétiques. Cette évaluation invite à l'optimisation par le biais de changements lors de la conception.

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6 Here’s what else to consider

This is a space to share examples, stories, or insights that don’t fit into any of the previous sections. What else would you like to add?

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Costel Nastac

Construction Consultant | Project Monitoring
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Implement commissioning and ongoing monitoring programs to ensure that sustainable building systems perform as intended and meet design objectives. Verify system functionality, optimize settings, and identify opportunities for further improvement through data analysis and performance tracking. Engage building occupants and stakeholders in sustainability initiatives and provide education and training on energy conservation, water efficiency, waste reduction, and sustainable practices. Encourage behavior change and empower occupants to participate in achieving sustainability goals.

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How can you design sustainable building services without increasing costs?

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3

4

5

6

1 Assess the building's needs

2 Optimize the passive design

3 Use efficient equipment and controls

4 Implement demand-side management

5 Evaluate the life-cycle costs

6 Here’s what else to consider

Civil Engineering

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How can you design sustainable building services without increasing costs?

1

2

3

4

5

6

1 Assess the building's needs

2 Optimize the passive design

3 Use efficient equipment and controls

4 Implement demand-side management

5 Evaluate the life-cycle costs

6 Here’s what else to consider

Civil Engineering

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