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Experience

Energy Analysis and Computer Modeling:
In the past eleven years (11), EBA has successfully conducted numerous projects utilizing its Doe-2 modeling expertise. Typically, the simulations entailed on-site energy audits and/or input data from the sites architectural, mechanical and electrical plans. The tasks were performed for various commercial, indusrtrial, institutional and residential sites to evaluate different energy efficient technologies in lighting, HVAC, direct/distributed digital controls, refrigeration, motors and building envelope. The analyzed technologies include day lighting controls, geo-source heat pumps, cool roofs, cogeneration plant, thermal storages, variable speed chillers, engine driven chillers, multiplexed refrigeration systems with floating head pressure control and over-sized condensers as well as direct digital controls for chilled water and air distribution systems. Some of the technologies require the development of new performance curves for their part load operation as well as for various ambient and condensing temperature operations.

EBA has completed hundreds of feasibility projects that include development of the recommended measures incremental cost, life cost analysis and input of the utility rate structures with seasonally energy (kWh and kBtu) and demand (kW) charges. Has also completed many projects that required the development of load profiles and bench marking of the simulation results with the end-use monitored data and/or the utility history of demand and energy usage. Conducted energy analysis for various commercial buildings including high-rise office, complex laboratory buildings of bio-tech company’s, high-rise hotels and casinos, refrigerated warehouse and groceries, large retails, large storages, central plants, universities and colleges, religious places of worship, large shopping malls, convention centers, commercial industrial sites as well as manufacturing sites.

On-Site Energy Audit:
EBA team has completed in the past several hundreds of energy audit to evaluate various new construction energy efficiency incentive programs of the major California electric utility companies like PG&E, SMUD, SCE and SDG&E. The majority of EBA projects for on-site survey utilized the collected onsite data to generate a computer model that is utilized to evaluate various energy conservation technologies. The energy onsite audits EBA completed are done for various commercial, industrial, residential and institutional buildings. The sites include high-rise office, complex laboratory buildings of bio-tech company’s, high rise hotels and casinos, refrigerated warehouse and groceries, large retails, large storages, central plants, universities and colleges, religious worships, large shopping malls, convention centers, commercial industrial sites as well as manufacturing sites. Responsible in developing the computer model. Company has also conducted special projects in exterior lighting studies sponsored by the California Energy Commission to evaluate lighting foot candle levels, types, tress passing, glare and other parameters.

Design Assistance and Facilities HVAC Design:
Conducted design assistance for various commercial buildings funded by major California utilities and California School districts communicating closely with mechanical and architectural firms. Among the task performed includes the analysis of packaged system verses built-up systems performance, partial thermal storage verses full thermal storage selection and sizing, evaluation and sizing of various types of chillers including VSD and absorption chillers. EBA staff has won third, fourth and fifth place awards in three different projects of mechanical design done for commercial buildings that involve load calculation, system design and distributed digital control (DDC) for the UCSD HVAC design course project among an average of 50 participating teams for each project. EBA staff has attended an in-depth summer course on DDC controls design.

End-use Monitoring and Commissioning:
Performed the monitoring and re-commissioning of the mechanical systems of various commercial buildings for the Integrated Design of Small Commercial HVAC Systems project of the CEC. Various sections of the mechanical systems are evaluated including the economizers, refrigerants (EBA has an EPA certified Type III technician), compressors, fans, and thermostats employing different techniques and measuring instruments. Completed the “Evaluation of Cool Roofs” project of San Diego Gas & Electric that was performed on four (4) commercial buildings. Various measuring techniques and devices were employed to measure the heat flux, weather, energy use as well as the roof and deck temperatures. Company has also conducted studies and measurement of the temperature stratification of conditioned space and attic for a ceiling insulation research project. Employed various lighting measurements techniques for exterior lighting research projects.

Schools Alternative Energy Funding Program:
Company has completed over 150 energy and economic analysis projects for the Alternative Energy Funding Program of School Buildings funded by the Office of Public School Construction (OPSC). During these projects, EBA staff has worked with the building architects, mechanical and electrical designers to determine the appropriate ECM’s applicable for funding. The DOE-2 energy simulation program was employed to perform the energy analysis. EB A has also been involved in the evaluation of energy projects applying for the Alternative Energy Funding Program of the OPSC for the several years. EBA is currently registered as an energy consultant with a California School District to provide services on call.

Power/Distributed Generation:
Performed the pre-feasibility study of a Combined Cycle Cogeneration Plant for the Medical Center of a large California University using the Doe-2 program. The study addressed the future expansion of the medical center up to the year 2020. Has completed proposals of power generation projects that have received positive reviews but pending due to non-technical issues beyond EBAs scope.

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