ZEB Inc. | Services – Human Centric ZEB
💚 Buildings That Put People First

Achieving Comfort
and Sustainability
Through ZEB

From energy saving through sacrifice,
to people-centered comfort and health.

Energy certification alone is not the goal.
We deliver occupant health and wellbeing.
🌱

Human Centric ZEB

From energy saving through sacrifice,
to people-centered comfort and health.

Philosophy

The ZEB Inc. Philosophy

We aim beyond conventional ZEB certification

Conventional ZEB Certification
🏢

Focused Solely on
Energy Balance

  • Achieving energy targets through efficiency and generation
  • Meeting BEI thresholds is the top priority
  • Occupant comfort often becomes an afterthought
  • Occupant health and productivity are not evaluated
Our Approach
✦ The ZEB Inc. Approach
🌱

Comfort Meets Sustainability:
Buildings That Put People First

  • Energy targets through efficiency and generation — of course
  • Meeting BEI thresholds — always achieved
  • Occupant health and productivity come first
  • Sustainable buildings through comfort, not sacrifice
🏢 Business Perspective — Offices

Forced energy saving hurts business

Uncomfortable environments cause health issues and loss of focus. Comfortable spaces boost employee retention and productivity, directly benefiting the bottom line.

Lower Productivity = Business Loss
🏫 Social Perspective — Schools

Healthy children benefit all of society

Proper ventilation and humidity control prevent infections and reduce absences. Parents take fewer sick days, and healthcare costs drop — reducing costs across society.

Schools more comfortable than home → Minimized social costs
Creating comfortable spaces through ZEB is the most economically rational choice
Merit

Three Benefits of ZEB

🧡

Comfort & Health

Enhanced Intellectual Productivity

Optimal thermal and lighting environments boost focus and creativity.

Better QOL & Health

Uniform temperature reduces stress and protects physical and mental health.

🌿

Environmental Harmony

Decarbonization Commitment

Minimize CO2 emissions and build a sustainable social foundation.

Community Resilience Hub

On-site generation and storage support business continuity during disasters.

📊

Economic Value

Minimize Life Cycle Cost

Reduced utility costs dramatically lower the building’s total life cycle cost.

A Building That Gets Chosen

High BELS ratings enhance tenant appeal and asset value.

Service

Services Tailored to You

Optimized ZEB support for local governments, private businesses, and design professionals

1

Seminars & Training

  • ZEB workshops for officials to raise awareness of ZEB importance
  • Regional workshops for local businesses and designers
  • Practical study sessions on standard input methods and ZEB design
2

ZEB Feasibility Study (Existing Buildings)

  • Create ZEB retrofit plans including CO2 reduction, energy savings, costs, economics, and schedules
  • Identify the most cost-effective ZEB candidates from multiple buildings
3

Subsidy Application Support

  • Select and recommend the most suitable subsidy programs
  • Comprehensive support from application to post-approval procedures, inspections, and final reporting
4

Energy Compliance & BELS Registration

  • BELS registration (ZEB certification) based on design documents
  • Energy compliance assessment, minor changes, and completion inspection support
  • BEI recalculation and ZEB compliance advice when designs change
5

ZEB Design Support

  • Design support for architects unfamiliar with ZEB
  • Specific pre-design advice for achieving ZEB
  • Calculate BEI from schematic design and deliver specifications with BEI results
1

Energy Compliance & BELS Certification

  • BELS registration (ZEB certification) based on design documents
  • Energy compliance assessment, minor changes, and completion inspection support
  • BEI recalculation and ZEB compliance advice when designs change
2

Subsidy Application Support

  • Select and recommend the most suitable subsidy programs
  • Comprehensive support from application to final reporting
3

ZEB Design Support

  • Design support for architects unfamiliar with ZEB
  • Specific pre-design advice for achieving ZEB
  • Calculate BEI from schematic design and deliver specifications
4

ZEB Feasibility Study (Existing Buildings)

  • Create ZEB retrofit plans for your buildings (CO2 reduction, savings, costs, economics, schedules)
  • Identify the most cost-effective ZEB candidates from multiple buildings
5

Seminars & Training

  • Brief your clients on ZEB information, implementation methods, and subsidies
  • Host ZEB workshops for stakeholders
1

Energy Compliance & BELS Certification

  • BELS registration (ZEB certification) based on design documents
  • Energy compliance assessment, minor changes, and completion inspection support
  • BEI recalculation and ZEB compliance advice when designs change
2

Subsidy Application Support

  • Select and recommend the most suitable subsidy programs
  • Explain subsidy programs to building owners
  • Comprehensive support from application to final reporting
3

BEI Calculation

  • Pre-design advice for achieving ZEB targets
  • Calculate BEI from schematic design and deliver ZEB-compliant specs and results
4

ZEB Design Support

  • Specific advice for achieving ZEB
  • Calculate BEI from schematic design and deliver specifications
5

ZEB Feasibility Study (Existing Buildings)

  • Joint proposals and bids for public ZEB feasibility study tenders
  • Collaborative development of ZEB retrofit plans
6

Seminars & Training

  • Brief your clients on ZEB, implementation, and subsidies
  • Host ZEB workshops for stakeholders
Technology

Engineering Excellence That Delivers

High-precision simulation and ZEB performance management guarantee real results

Building Energy Simulation

We build 3D models and run detailed 8,760-hour annual simulations to optimize design
EnergyPlusBEST
  • Combine 3D building models with weather data for hour-by-hour calculation across all 8,760 hours
  • Accurately calculate HVAC loads per room to select optimal equipment (preventing over-investment)
  • Predict annual fluctuations in temperature, humidity, and power to verify comfort and efficiency at design stage
  • Quantify energy savings before and after retrofit — also used as evidence for subsidy applications

ZEB Performance Management (Commissioning)

Ensure the ZEB performance targeted in design is achieved and maintained through construction, completion, and operation
New Construction ZEBExisting Building ZEB
  • Design: Verify specifications required for ZEB, review design documents
  • Construction: Recalculate BEI with every design change to ensure ZEB compliance
  • Completion: Post-completion BEI verification and equipment performance testing
  • Operation: BEMS-based energy monitoring, analysis, and operational optimization
📈

Quantified Results

Clearly present energy savings with before/after data

⚙️

Optimized Design

Prevent over-investment by selecting optimal equipment capacity

📋

Subsidy Support

Prepare high-precision documentation for subsidy applications

Process

The Path to ZEB

One-stop support for both new construction and existing building retrofit

🏗 New Construction ZEB
1

Planning

Propose ZEB, plan with approx. 10% cost premium

2

Design

Include ZEB requirements in bid specifications

3

Construction

Recalculate BEI with every change to ensure compliance

4

Completion

Obtain ZEB certification at completion

5

Operation

Use BEI data sheets for ongoing efficiency and CO2 reduction

🔄 Existing Building ZEB Retrofit
1

ZEB Feasibility Study

Visualize potential and challenges

2

Identify Barriers

Assess cost-effectiveness and construction constraints

3

Plan Development

Create a highly feasible optimal plan

4

Retrofit Work

Execute with practical plans including occupied renovation

5

Comfort Achieved

Verification and tuning guarantee both comfort and efficiency

💡

For existing buildings, start with a ZEB Feasibility Study

By identifying barriers and quantifying potential, we dramatically increase feasibility. We support reliable ZEB conversion — not just plans on paper.

Clients

Selected Clients

Obayashi Corporation
Pacific Consultants Co., Ltd.
Bureau Veritas Japan
Ministry of Land, Infrastructure, Transport and Tourism
Ministry of Education, Culture, Sports, Science and Technology
Kurume City, Fukuoka

Get in Touch About ZEB

From feasibility studies to design support and subsidy applications — we are here to help.