Carbon & Economic Comparison for Hot Water Systems Using Heat Pumps, Direct Electric and Hydrogen Blends

This CPD will show the savings achieved using three low-carbon systems. The first system is a gas combustion continuous flow water heater that can run on hydrogen blends up to 20 %, as shown in figure 2. The second system is defined as a hybrid and consists of a heat pump and gas water heater 20% hydrogen blend ready, as shown in figure 3. The third system is the all-electric and consists of a heat pump and direct electric cylinder, as shown in figure 4. The study uses “notions” of buildings from previous real-life projects to compare each system. The notion establishes the building’s peak loading conditions, temperature, and recovery times. In this article, a gym health centre is used as a notion.