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Enable Zero-Emission Buildings with Thermal Energy Storage Management

ZYD Energy provides building decarbonization solutions
based on system integration and intelligent controls.

LOCUS Technology

Load Optimization Control Using Storage

Water heating is the second largest source of greenhouse gas emissions in residential buildings. The best option to decarbonize water heating is to use heat pump water heaters (HPWH) in combination with thermal energy storage (TES) to provide hot water using electricity from renewable sources. 
LOCUS Technology provides a system-level integration, control, and monitoring solution for HPWH systems to realize their carbon reduction potential by optimizing system efficiency and renewable energy utilization.

Reduce Design and Installation Costs

Reduce Building Water Heater Energy Costs

Minimize Greenhouse Gas Emissions

Support Reliable Electric Grid Operation

LOCUS Integration and Control

Effective integration of HPWH systems requires system-level controls to coordinate heating operation and storage utilization and manage system energy use schedule according to electricity supply conditions. Normal HPWH systems rely on water heaters’ built-in controls, which can ensure reliable hot water supply but cannot serve as system-level controls to manage system operation schedules.

LOCUS technology provides a system-level control by using an innovative flow router to integrate HPWH and TES equipment. LOCUS flow router provides interconnection between water heating and TES equipment and controls their operation by managing water flow between these equipment. This system-level control enables flexible adjustment of heating and storage operation schedules.

LOCUS flow router also simplify system design and installation by creating a plug-and-play system integration architecture, which enables scalable deployment of advanced HPWH and TEC systems.
LOCUS Flow Router split front.PNG

LOCUS Optimization

LOCUS technology optimizes both system efficiency and energy use schedule to minimize operational costs, greenhouse gas emissions, and grid impact. LOCUS optimization is built on the system operation flexibility enabled by flow route-based system-level controls. LOCUS optimization algorithms schedules water heating and storage use schedules according to  time-varying electricity price, carbon intensity, demand response signals, and building hot water demand. Using Internet of Things (IoT) data communication, LOCUS technology can provide grid-interactive optimization services to benefit customers, the electric grid, and the environment
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Residential Buildings with Solar Panels

LOCUS Performance Monitoring

LOCUS technology continuously monitors HPWH and TES system operation to support process optimization, track the energy consumption and carbon emissions, and alert system operators of faults and inefficiencies. LOCUS performance monitoring helps customers to reduce operational cost, improve tenant satisfactory, and verify carbon emission impact.

sustainable water heater
HeaterHive provides an innovative source of hot water for homeowners seeking sustainable, stylish, and healthy living. HeaterHive is packaged with a heat pump water heater and LOCUS technologies to provide a transformative hot water source with enhanced hot water supply, large energy savings, and drastic carbon footprint reductions.



Awards & Supporters

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Recipient of CalSEED 2019 Concept Award for clean energy innovation.

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EPIC Program


SBIR Program

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