Independent Consulting
for Your Path to Net Zero
Strategic decarbonization and implementation advisory – powered by independent German expertise.
You invest in prestigious buildings, visionary urban developments or high-performance real estate portfolios.
Rising energy costs, regulatory expectations and global ESG standards require forward-looking solutions that deliver visible sustainability – and measurable impact.
At Haas Sustainable Consulting, we support owners, developers and asset managers in defining and implementing a future-proof climate strategy:
✔️ CO₂-neutral transformation of existing properties
✔️ Decarbonization with economic and reputational value
✔️ Identification and activation of international funding opportunities
✔️ Transparent, audit-ready ESG alignment for stakeholders and investors
Our Services towards Net Zero
Strategic 3-Phase Program for Climate-Conscious Real Estate Investors
Independent German Expertise
for Sustainable Transformation to Carbon Neutrality
1. CO₂-Neutrality Roadmap
Strategic entry point for assessing emission potential and climate targets.
Module 1 gives you a clear view of your property’s main CO₂ drivers, a prioritized list of measures, and a solid strategic basis for long-term climate planning.
2. Strategic Decarbonization Plan
Actionable CO₂ strategy with funding opportunities and investment guidance.
Module 2 provides a ready-to-implement climate strategy with CO₂ targets, Energy Audit EN 16247, and funding guidance – a solid basis for investments or EPC models with guaranteed savings.
3. Net Zero Management & Implementation
Establishment of a CO₂-centered management system and project implementation support
Module 3 supports the full implementation of your decarbonization strategy through a CO₂-focused energy management system (ISO 50001), funding applications, and EPC delivery – supporting effective execution.
Winfried Haas
German Consulting Engineer – Founder & Principal Advisor
Winfried Haas is a German energy expert with over 30 years of international experience in managing complex decarbonization, energy efficiency, and renewable energy projects.
He advises real estate owners, investors and project developers in the UAE, Middle East and Europe on how to achieve carbon neutrality – through tailored CO₂ strategies, energy audits, and implementation support.
With deep expertise in both technical systems and ESG requirements, he builds trusted partnerships with clients who seek economically sound and future-proof sustainability solutions.
Customer Groups
Cities, Districts and
Public Authorities
Administrations of cities, districts and major public facilities like universities, city halls, theaters, opera houses, authority head quarters, sports events halls, museums
Commercial and production sites
Developer, owner and operator of office buildings and towers, shopping malls, hospitals, airports, logistic center, data center, hotels, convention center and productions sites.
Communities, Villages and Holiday Resorts
Communities, Villages and Holiday Resorts
Why Work With Us
German Engineering with Awarded Track Record
Trusted precision and 30+ years of experience in energy efficiency, renewable energy and CO₂-reduction strategies. Proven results and a certified, award-winning track record from complex transformation projects in Germany and internationally.
Economic Value through Climate Strategy
Strategic CO₂ roadmaps focused on ROI, operational cost savings, and funding opportunities. From short-term quick wins to performance-based models like Energy Performance Contracting (EPC), we deliver impact and economic value.
Trusted Partnership, Culturally Aligned
Strong personal commitment and culturally sensitive collaboration with GCC stakeholders and international advisors. We build loyalty through reliability, discretion, and long-term thinking – fully aligned with your values and vision.