Energy and Heat Capture Solutions

The vendor required to provide energy and heat capture solutions for each study site the potential of renewable energy (RE) electricity generation (EG) sources and design and simulate an optimal hybrid electricity generating (HEG) system to help offset fossil fuel (FF) EG and provide missing EG capacity to run the ground source heat pump (GSHP) district systems evaluated by agency.
- Hybrid electrical system design and simulation for GSHP heat mining systems:
•    Provide, for each site and for both high-temperature (HT) and low-temperature (LT) GSHP heat mining systems, an electricity load profile at a suitably granular scale over the 30-year system lifespan.
•    Sub-tasks: for each site and for both the LT and HT GSHP heat mining systems, the contractor will determine:
•    Screening: if the site has sufficient existing or planned EG capacity to power the GSHP heat mining system and the source of this EG (i.e., FF or RE). 
•    If the site has sufficient existing or planned RE to power the GSHP heat mining system, then no simulation work is required.
•    HEG system design and simulation: if site has insufficient existing RE EG to power the GSHP heat mining system, then the contractor will:
o    For sites with sufficient FF EG to run the GSHP heat mining system: a HEG system that can offset the FF EG required to run the GSHP heat mining system. 
o    For sites with insufficient FF EG to run the GSHP heat mining system: a HEG system that can reliably meet existing electrical load plus the additional load from the GSHP system, and offset the FF EG require to run the heating system. 
o    Design: an optimal HEG should be the lowest cost option but be reliable and integra table with the existing EG system.
- Heat capture system design and simulation:
•    Based on the results of the low- and high-temperature GSHP heat mining systems evaluated for each site (which will incorporate, as much as possible, the use of existing sources of waste heat during the heating season), agency will determine the amount of heat to be captured. 
•    This will be based on the amount of heat to be stored to balance heat removed during the heating season. 
•    Agency will use this information to determine the amount of heat to be captured by considering heat lost during storage.
a. Sub-tasks:
•    The low- and high-temperature GSHP with heat storage systems evaluated by agency, investigate heat capture options including from waste heat sources (e.g., from FF EG sources) and capture-specific sources (e.g., solar parabolic collectors). 
•    Design a heat capture system to capture approximately the amount of heat specified by agency. 
•    Simulate the system using appropriate software to determine the rate of heat capture at a suitable scale (e.g., daily, weekly) and iterate as required to determine an optimal system.
- Hybrid electrical system design and simulation for GSHP with heat capture systems
•    Using the updated electrical load information provided by agency, along with the load required to run the heat capture system, re-do the screening sub-task described in the task hybrid energy system design and simulation for heat mining to determine if additional EG is required and redesign and simulate the HEG system for the affected sites to account for the modified electrical load.