2022-09-29-REC-min-att - Laserfiche WebLink

Browse Search

SED Associates Corp Consulting Engineers the demand charges are less to further reduce the operational cost. Again, this would be based on hot water use of the facility. Although this system has the lowest operational cost it does have the highest installation cost. With a COP of 3.80, the estimated operational cost based on the provided electrical cost of $0.23/kWH is $3,269.75 Approximate Construction Cost: $146,000 (does not include possible utility company transformer and engineering costs or building modification/addition.) Option 6 — Geothermal Heat Pump Water Heater This option would utilize ground water as the medium to heat the necessary domestic water. This system would include a water source heat pump, heat exchanger, storage tanks and pump. A well survey would need to be performed in order to determine where the required ground water wells could be installed. Before this system could be sized and proposed as a viable option, a geothermal heat pump installer would need to examine the site to determine whether it's best suited for a horizontal or vertical ground loop. While both system designs provide energy efficiency and savings benefits, installing a vertical loop system typically requires more time and money, as a drilling rig would be required and potentially bore through solid rock. The soil type also impacts the cost and time requirements for a geothermal heat pump installation. For instance, if the soil is soft and easy to dig out, your installation will take less time and money than an installation in denser clay -based soils or rock formations. Additionally, consideration of the above- ground features that impact available space would need and may need to physically alter your property's landscape during the installation process (especially for horizontal loop installations). For the reasons stated above, this option was not considered as a more in-depth review of the site including a geo-technical survey would be required to determine its viability. Option 7 — Solar Hot Water Heater This option would use roof mounted fourteen (14) solar panel, two (2) internal storage tanks and an electric back-up tank. Solar systems and analysis require a specific product understanding and its application for this analysis SED engaged a specialized firm for this application see attached selection. Estimated annual saving compared to electric resistance is 6,712KWH/annual x $0.23= $1,544 Approximate Construction Cost: $29,700(does not include roofing, structural engineering and rebates) 6,300 electrical work $36,000 total Before this system could be finalized a structural analysis of the roof needs to be done to establish any impact and upgrading the roof if required.