Rohit Jogineedi
GTI Energy | Engineer
Speaker
Track C: Decarbonization and Electrification Strategies
Session C1: Building Decarbonization
March 11, 2026 | 3:00 pm - 3:30 pm
Evaluating Hybrid VRF + Gas DOAS Systems Across Climate Zones
| This work evaluates hybrid HVAC configurations pairing electric variable refrigerant flow (VRF) with natural gas or propane-based dedicated outdoor air systems (DOAS), benchmarked against fully electric VRF systems. Using EnergyPlus models calibrated with field data, simulations across ASHRAE climate zones revealed significant reductions in electricity use (40–50% in cold climates), annual CO₂e emissions (35–45%), and operating costs, particularly where heating loads are large and grid carbon intensity is high. In warmer climates, benefits were limited or negligible due to low heating demand. Natural gas proved more cost-effective than propane, though both reduced grid reliance and improved system resilience. These results underscore the role of hybrid VRF + DOAS as a scalable pathway for energy efficiency and emissions reduction in offices, schools, and healthcare facilities, aligning with decarbonization goals while supporting flexible fuel strategies. |
Speaker Bio
Rohit Jogineedi is an Engineer at GTI Energy, where he assists with research on advanced HVAC and building energy systems. His work focuses on developing and validating EnergyPlus models for emerging technologies. Rohit has contributed to projects spanning multi-family and commercial buildings across diverse climate zones, with emphasis on quantifying energy savings, emissions reduction, and techno-economic performance. His background includes system modeling, techno-economic analysis, and field validation of high-efficiency gas and hybrid systems, with the goal of supporting utility programs and advancing building decarbonization.