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Energy modeling is a digital simulation tool that allows for calculations and subsequent analysis of a building's loads and energy consumption throughout a year of virtual use. It also helps in estimating costs during the construction and operational phases of the building.

Advantages of Using an Energy Model

 

  • Accurate prediction of heating, ventilation, and air conditioning system loads.
  • Analysis of indoor climate conditions throughout the year considering the designed engineering systems.
  • Evaluation of potential annual energy consumption reductions through the implementation of energy-efficient solutions.
  • Analysis of energy resource consumption, considering the interrelationship between consumers under real operating conditions.
  • Forecasting annual operating costs: expenses for thermal and electrical energy by building consumers.
  • Possibility to increase the project's IRR by 8-10% by reducing capital costs for connection to energy sources and optimizing the cost of energy supply equipment.

 

 

Key Aspects in Creating the Model

 

  • Building architecture;
  • Geographical location and orientation relative to the cardinal directions;
  • Impact of neighboring buildings on shading calculations;
  • Thermal protection of the building envelope;
  • Calculations of heat losses and heat gains;
  • Operating mode and distribution of energy loads among consumers;
  • Accounting for the performance of engineering systems and their automation;
  • Modeling of building energy supply systems, including centralized sources;
  • Calculation of loads on the building's energy system;
  • Application of alternative and renewable energy sources.

 

To calculate the cost of the energy modeling service, use our online calculator.

 

 

Methodology of Energy Modeling

 

In creating an energy model, two digital models of the building are developed:

 

1. "Base Model"

A 3D model of the building is constructed in a specialized software tool, taking into account all the engineering aspects provided by the project. This model is then used to analyze the thermal and electrical loads necessary for the building's operation and compare them with the project specifications.

 

2. "Energy-Efficient Model"

Based on the "Base Model," energy-efficient solutions are developed, tailored to a specific list for the particular building. These solutions aim to reduce energy loads and annual resource consumption costs.

 

The difference in annual energy consumption between the "Base" and "Energy-Efficient" models demonstrates the level of achieved energy efficiency and the economic benefits during the building's operation.

Comparing the energy loads (thermal and electrical) between these models allows for the assessment of potential savings during the construction phase, related to the capacity of connections to energy networks.

 

 

 

Objectives of Construction Object Energy Modeling

 

Option 1:

 

Building Certification According to International Environmental Standards. Buildings aiming to meet standards such as LEED and BREEAM undergo an energy modeling process comprising two key stages:

 

1. Preliminary Energy Modeling

  • Creation of Base Energy Model: Develop a Base Energy Model according to ASHRAE 90.1 standards, and construct a Project Energy Model in line with the project documentation using specialized software.

  • Comparison of Models: Compare both models to assess energy efficiency metrics.

  • Determining Potential Points: Identify potential certification points based on the comparison results and develop architectural and technical solutions to enhance energy efficiency.

 

2. Energy Modeling for Certification Body Examination

  • Development of Models: Develop Base and Project Models during the "Construction" phase, incorporating approved recommendations from the preliminary energy modeling.

  • Model Adjustments: Adjust the model based on changes in the project documentation.

  • Final Comparison: Conduct a final comparison of the two energy models and calculate certification points for energy efficiency.

  • Documentation Preparation: Prepare the necessary documentation for review by the Certification Body.

 

 

Option 2:

 

Engineering Project Rework for Optimizing Capital and Operational Costs, Investment Attractiveness Analysis for Implementing Energy-Efficient Solutions

1. Verification of Project Solutions: Detailed Study of Project Solutions: Conduct a thorough review of project solutions, calculate the energy loads of the object, and verify the parameters of the energy system for optimality and sufficiency.

 

2. Optimization of Capital Construction Costs: Energy Modeling for Cost Optimization: Utilize energy modeling to optimize project solutions and reduce costs on engineering equipment and connection to energy supply systems.

 

3. Reduction of Operational Costs: Evaluate potential investments in energy efficiency to achieve long-term savings in management and maintenance of the object (budget, operational expenses, IRR, NPV, energy loads (thermal, cooling, electrical), and annual energy resource expenses).

 

To determine the cost of energy modeling services, you can use our online calculator.

 

 

Why is Energy Modeling Necessary?

 

Energy modeling is used to forecast the performance of a building in the future, starting from its design phase. This enables the selection of the most advantageous energy supply scenario, identification of the best and most environmentally safe type of engineering equipment, calculation of development prospects, and anticipation of future operational costs. It also allows for the integration and prediction of the effectiveness of innovative solutions.

 

 

 

Benefits of Energy Modeling

 

Energy modeling can address several key tasks:

 

  • Optimization of Operational Costs: Energy modeling helps determine which investments in energy efficiency can reduce long-term management and maintenance costs of the building.
  • Reduction of Capital Costs: It allows for the adjustment of design decisions and consumer loads, potentially lowering the cost of engineering equipment and connection to municipal energy supply networks.
  • Analysis of Project Solutions: Energy modeling allows for the assessment of the feasibility of design decisions and the optimization of energy loads, preventing the incorrect selection of engineering equipment.
  • Certification for Green Buildings: Energy modeling confirms compliance with energy efficiency requirements for environmental certifications such as LEED, BREEAM, and WELL.

 

 

 

Value of Energy Modeling for the Object

 

Energy modeling enables the creation of a substantiated and energy-efficient project, which will be valued by future tenants and owners, possessing high investment potential.

Service Plan for Project Engineering Optimization

 

Stage 1: Review of Project Documentation

  • Assessment of Initial Design Solutions: Evaluation based on the received documentation.
  • Preliminary List of Work: Identification of improvements for energy efficiency.
  • Duration: 5-10 working days.

 

Stage 2: Creation of the Basic Energy Model

  • Calculation of Required Energy Loads: Analysis for each consumer.
  • Annual Energy Resource Consumption Forecast: Estimation of yearly consumption.
  • Energy Balance Assessment of the Building: Comprehensive evaluation.
  • Duration: 20-30 working days.

 

Stage 3: Development of Solutions Based on the Basic Energy Model

  • Proposal Development: Minimizing loads and reducing energy consumption.
  • Energy Efficiency Modeling of Proposed Measures: Separate evaluation of each measure.
  • Technical and Economic Benefits Assessment: Analysis of potential improvements.
  • Duration: 30-40 working days.

 

Stage 4: Creation of the Energy-Efficient Model

  • Modeling of the Final Set of Solutions: Based on proven technical and economic feasibility.
  • Evaluation of Implementation Benefits: Technical and economic analysis.
  • Duration: 10-20 working days.

 

Stage 5: Independent Support of Developed Solutions in Design

  • Final Approval of Solutions: With the client.
  • Technical Assignment Preparation: For project documentation amendments.
  • Design Process Support: Throughout the project design phase.
  • Duration: Throughout the design period.

 

*Note: The estimated service completion times are indicative and may vary depending on the project's scope (area, number of zones, number of engineering system types, building geometry complexity).

 

 

 

Frequently Asked Questions

 

  • What is the cost of energy modeling services? To determine the cost of energy modeling services, you can use our online calculator.
  • How long does the engineering optimization process take? Approximate timelines are indicated in the "Service Plan for Project Engineering Optimization" section. The duration may vary depending on the project scale (total area, number of modeled zones, variety of engineering systems, architectural complexity).
  • What software is used for energy modeling? Our team uses various software products depending on the task, including IES VE, EDSL TAS, and Design Builder.
  • Who performs the energy modeling of the facility? Energy modeling is carried out by a qualified engineer. Their competencies and experience should cover the key sections of the project (architectural and structural solutions, HVAC, power supply, water supply, energy efficiency) to ensure data accuracy and results. The engineer should also be proficient in auxiliary software such as Autodesk Revit, AutoCAD, and should apply ASHRAE 90.1, 62.1 standards.
  • Is it possible to conduct energy modeling at the initial stages without project documentation? Yes, it is possible. At the initial stages of design, energy modeling can be most beneficial, as it allows evaluating various aspects and features of the building, including location and orientation. Missing data is identified and agreed upon with the client.

 

 

Schedule a Consultation with an Energy Modeling Expert

 

For inquiries and to schedule a consultation, use the following contacts:

Email: info@hpbs.uz

Phone: +99890 9306566 (Telegram/WhatsApp)

We can arrange a meeting to provide detailed information about the service and answer all your questions.

 

 

Additionally: 

Implementation of Energy Management and Energy Auditing