Upgrade Your HVAC System Today and Unlock Lasting Value
With RetroFIT+, cut energy costs, secure asset value, and achieve sustainability goals.
Start Smart, Avoid Overspending
Begin your RetroFIT+ project by optimizing your HVAC system to achieve savings and improve performance — before committing to larger, potentially unnecessary modernization projects. Only invest where it truly adds value.
What you gain with this approach:
- Fast return on investment, immediate impact, low downtime: Smaller, OPEX-sized projects deliver results quickly.
- Right-sizing benefits: Lower peak load after optimization (~5–15%) lets you select smaller, more cost-effective equipment later.
- Comfort preserved: Sequencing and hydronic fixes reduce complaints, overrides, and noise.
- Decision clarity: Belimo provides prioritization of the next steps with costs, savings ranges, and operational risk insights — giving you confidence at every stage.
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| Potential energy savings | 10-25% | 10-30% | 10-30% |
| Return on Investment | 0.5–4 years | 2–7 years | 10–20+ years |
| Downtime | less than 1 day* | 1 day to 1 week | 3 months to 1 year |
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*Lower peak load after Stage 1 reduces equipment and auxiliaries in Stage 2, cutting future CAPEX as well as energy use. |
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How RetroFIT+ Works – The PLUS Methodology
Profile:
- Assess buildings with the highest retrofit potential
- Focus on age, energy use, and system setup
- Result: Prioritized starting point
Log:
- Capture key system, control, and performance data
- Establish a transparent operational baseline
- Result: Fact-based assessment
Utilize:
- Pilot targeted improvements with minimal disruption
- Validate impact using real-time data
- Result: Proven measures
Sustain:
- Verify performance and confirm savings
- Scale successful solutions across the building portfolio
- Result: Portfolio-wide impact
Regulatory Requirements Are Tightening — RetroFIT+ Helps You Stay Compliant
Energy codes, benchmarking expectations, and incentive programs are increasing the pressure to prove HVAC performance and control effectiveness. RetroFIT+ helps building owners validate results, improve sequences and setpoints, and support reporting, tax deductions, and utility incentive cases.
Important Standards
• ASHRAE 90.1 energy standard
• ASHRAE 62.1 ventilation and 55 comfort
• 2024 IECC where locally adopted ENERGY STAR Portfolio Manager benchmarking
RetroFIT+ Helps Achieve Compliance
• Validate before-and-after performance
• Improve control sequences and setpoints
• Support benchmarking and compliance documentation
Financial Subsidies
• Federal 179D tax deduction
• State and utility incentive programs
• Municipal incentives for public buildings and schools
European requirements are increasing the need for better controls, clearer performance evidence, and stronger energy management. RetroFIT+ helps building owners assess comfort and ventilation, improve control performance, and support audits, compliance reviews, and funding discussions.
Important Standards
• EPBD recast and national BACS implementation
• EN16798 comfort and IAQ benchmarks
• ISO52120 for controls and automation
• UK ESOS for qualifying organizations
RetroFIT+ Helps Achieve Compliance
• Document comfort and ventilation performance
• Review controls against recognized functions
• Prepare audit-ready evidence and action plans
Financial Subsidies
• BEG/BAFA and KfW in Germany
• CEE white certificates in France
• National and utility schemes across the EU and UK
Energy codes, green building frameworks, and ESCO-led retrofit models are increasing the need for clear performance evidence. RetroFIT+ helps building owners document comfort, ventilation, and energy performance, package measurement and verification evidence, and support submissions under local sustainability frameworks.
Important Standards
• Australia NCC 2022 Section J
• NABERS operational ratings
• Singapore BCA Green Mark 2021
RetroFIT+ Helps Achieve Compliance
• Improve controls, setpoints, and scheduling
• Set up metering and performance tracking to support better NABERS ratings
• Support Green Mark documentation on HVAC system efficiency and performance verification
Financial Subsidies
• State and utility schemes tied to Section J measures
• Higher NABERS rating can support asset value
• Green Mark upgrade pathways
Energy codes, green building frameworks, and ESCO-led retrofit models are increasingly needed for clear performance evidence. RetroFIT+ helps building owners document energy, comfort, and ventilation results. It also supports retrofit planning and preparation for financed upgrade programs.
Important Standards
• Saudi Energy Conservation Code (SBC 601)
• Abu Dhabi Estidama Pearl framework
• GSAS in Qatar
• Dubai retrofit programs and ESCO models
RetroFIT+ Helps Achieve Compliance
• Produce audit-ready comfort and ventilation records for local green codes
• Package measurement and verification evidence for ESCO contracts
• Map documentation to Estidama and GSAS requirements
Financial Subsidies
• ESCO-financed retrofit models
• Municipal and utility-backed savings-share models
Success You Can Measure
From reducing gas consumption by half at our Großröhrsdorf site to helping a New York City property manager reduce carbon emissions by 40%, Belimo solutions deliver real-world impact in energy efficiency. Discover how our customers achieve more with RetroFIT+.
Embarcadero Center, San Francisco (USA)
At San Francisco’s iconic Four Embarcadero Center, an aging chilled water system with two-way, pressure-dependent globe valves and pneumatic actuators was struggling with low Delta T, rising energy costs, and no visibility into hydronic performance.
Retrofitting the building with Belimo Energy Valves converted the legacy system to pressure‑independent control. The result: improved Delta T, real‑time system visibility, and hidden faults brought to light. The upgrade reduced chiller plant energy use by 28%, delivering around $131,000 in annual energy cost savings.
Success Story
Embarcadero Center, San Francisco (USA)
United States
At San Francisco’s iconic Four Embarcadero Center, an aging chilled water system with two-way, pressure-dependent globe valves and pneumatic actuators was struggling with low Delta T, rising energy costs, and no visibility into hydronic performance.
Retrofitting the building with Belimo Energy Valves converted the legacy system to pressure‑independent control. The result: improved Delta T, real‑time system visibility, and hidden faults brought to light. The upgrade reduced chiller plant energy use by 28%, delivering around $131,000 in annual energy cost savings.
Allseas (Netherlands)
Allseas, a company with global leadership in the offshore energy sector, is setting new standards in HVAC efficiency. To ensure the sustainable operation of the fleet and the comfort of up to 500 employees per vessel, the heating and cooling systems of the Allseas ships are being gradually equipped with Belimo Energy Valves. A special highlight of these modernisation measures is the retrofit of the "Pioneering Spirit", the world's largest construction vessel. The vessel, which can raise offshore platforms weighing up to 60,000 tons in a single lift, achieved impressive results by installing 175 Energy Valves: the pumps' current consumption was reduced from 600 kW to 120 kW — an energy saving of 82%.
Thanks to this targeted Belimo RetroFIT+ measure, Allseas is now saving approximately EUR 700,000 in energy costs each year. As a result of these significant savings, the project's payback period is just three years. This means that the company is making a significant contribution to economic efficiency and to the reduction of the ecological footprint of the offshore industry.Watch our video to learn how Allseas is using innovative Belimo valve technology to maximise energy efficiency at sea and significantly reduce operating costs.
Success Story
Allseas (Netherlands)
Netherlands
Allseas, a company with global leadership in the offshore energy sector, is setting new standards in HVAC efficiency. To ensure the sustainable operation of the fleet and the comfort of up to 500 employees per vessel, the heating and cooling systems of the Allseas ships are being gradually equipped with Belimo Energy Valves. A special highlight of these modernisation measures is the retrofit of the "Pioneering Spirit", the world's largest construction vessel. The vessel, which can raise offshore platforms weighing up to 60,000 tons in a single lift, achieved impressive results by installing 175 Energy Valves: the pumps' current consumption was reduced from 600 kW to 120 kW — an energy saving of 82%.
Thanks to this targeted Belimo RetroFIT+ measure, Allseas is now saving approximately EUR 700,000 in energy costs each year. As a result of these significant savings, the project's payback period is just three years. This means that the company is making a significant contribution to economic efficiency and to the reduction of the ecological footprint of the offshore industry.Watch our video to learn how Allseas is using innovative Belimo valve technology to maximise energy efficiency at sea and significantly reduce operating costs.
Paramount Group, New York (USA)
In response to a regulatory mandate in New York City focused on improving energy efficiency and reducing carbon emissions for large buildings starting in 2024, a major property management company upgraded key buildings with the Belimo Energy Valve™, a pioneering, IoT-enabled device designed to optimize energy use and maintain Delta T in HVAC systems.
The upgrade dramatically cut energy use and costs – saving over $1 million in electricity in 2023 alone. The effort also earned Paramount $2.1 million in utility incentives, aligned the buildings with 2030 carbon reduction goals, and secured top sustainability certifications. This marks a significant stride towards the 2050 carbon neutrality target, demonstrating a strong commitment to sustainability and efficiency. Watch the video to find out more about the CO2 reductions and cost savings.
Success Story
Paramount Group, New York (USA)
United States
In response to a regulatory mandate in New York City focused on improving energy efficiency and reducing carbon emissions for large buildings starting in 2024, a major property management company upgraded key buildings with the Belimo Energy Valve™, a pioneering, IoT-enabled device designed to optimize energy use and maintain Delta T in HVAC systems.
The upgrade dramatically cut energy use and costs – saving over $1 million in electricity in 2023 alone. The effort also earned Paramount $2.1 million in utility incentives, aligned the buildings with 2030 carbon reduction goals, and secured top sustainability certifications. This marks a significant stride towards the 2050 carbon neutrality target, demonstrating a strong commitment to sustainability and efficiency. Watch the video to find out more about the CO2 reductions and cost savings.
Belimo Office, Großröhrsdorf (Germany)
Belimo is committed to increasing energy efficiency and reducing CO₂ emissions in buildings. An example of our initiative is the upgrade of the heating system at our Großröhrsdorf site in Germany, which covers an area of approximately 19,000 m2. Before our own RetroFIT+ specialists intervened, the site consumed 750,000 kWh of gas annually.
Through a series of targeted adjustments and modernization measures, we successfully halved this consumption, resulting in an annual saving of 75 tons of CO₂. The payback period was approximately one year, and the annual savings amount to EUR 38,000. Watch our video to see the practical steps and technologies Belimo has employed to decrease energy use, lower costs, and contribute positively to the environment.
Success Story
Belimo Office, Großröhrsdorf (Germany)
Germany
Belimo is committed to increasing energy efficiency and reducing CO₂ emissions in buildings. An example of our initiative is the upgrade of the heating system at our Großröhrsdorf site in Germany, which covers an area of approximately 19,000 m2. Before our own RetroFIT+ specialists intervened, the site consumed 750,000 kWh of gas annually.
Through a series of targeted adjustments and modernization measures, we successfully halved this consumption, resulting in an annual saving of 75 tons of CO₂. The payback period was approximately one year, and the annual savings amount to EUR 38,000. Watch our video to see the practical steps and technologies Belimo has employed to decrease energy use, lower costs, and contribute positively to the environment.
Trends Transforming the Building and HVAC Industry by 2050
Need help?
FAQ
How long does the assessment take?
Typically, about half a day, provided basic data is prepared in advance.
Will this disrupt tenants?
Usually, there is only minimal disruption to tenants. RetroFIT+ focuses on small, targeted retrofit measures that can be implemented with limited disruption to occupied buildings.
What if we do not have a modern building management system?
That is not a blocker. Many retrofit opportunities can be implemented without a modern BMS, while still creating better transparency and preparing the building for future digital integration.
How do we verify savings?
Verification becomes much easier when the right data is available. Products such as the Belimo Energy Valve™, Thermal Energy Meter, and sensors provide transparent performance data, either through Belimo cloud-based insights or through data collection in the building management system.
Can we start small before committing to a larger retrofit?
Yes. RetroFIT+ is designed to start with targeted measures in high-impact areas, so you can validate results first and scale step by step.
RetroFIT+ Redefined
Discover our innovative solutions that make HVAC modernization simple and efficient. From smart valves to intelligent sensors, we deliver everything you need.
Belimo Energy Valve™
Gain transparent insights into energy flows and system health. Continuously monitor and turn data into verified performance.
Sensors / Meters
Turns existing building data into a ranked measures list in hours with savings and payback bands, expected class uplift, and a decision-ready report
Ready to Act?
Start your RetroFIT+ journey today.
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3.77 MBRetroFIT+ Technical Documentation
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21.67 MBRetrofit Forms
Ball Valve Retrofit Form
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213 KBButterfly Valve Retrofit Form
Retrofit Form
174 KBGlobe Valve Retrofit Form
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144 KBDamper Actuator Retrofit Form
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