Founded in 1994, AESC provides program design and implementation, measurement and
verification, and corporate sustainability services to utilities, regulators, public entities and private
enterprise throughout the United States. Our staff includes electrical, mechanical, environmental, and software engineers, all of whom
have a passion for energy engineering. We understand the regulated utility environment as well
as the competitive world of commercial and industrial facilities.
Praxis by AESC is a user friendly, customizable software platform that accelerates utility programs and accommodates a variety of technical and non-technical users. Users employ Praxis both as a single-use energy modeling tool, and as a suite of integrated solutions that encompass modeling, building auditing, energy reporting, and incentive application processing. The calculation engine behind Praxis is driven by decades of energy engineering expertise, a comprehensive understanding of building systems, and calculation tool development.
Water treatment facilities operate using intricate systems of
interdependent actions. Because of this, one change can have a ripple effect throughout the entire process. AESC has the knowledge and experience necessary to
understand and assess your unique plant and provide reliability-based energy efficiency solutions.
AESC offers expert energy engineering resources for the sustainability officer, energy manager and facilities professional. For more than twenty years, AESC has served commercial facilities on behalf of utilities and
regulators. Our extensive demand side management experience and understanding of utility
incentive programs makes us uniquely capable of evaluating your energy strategy and advising
you as you consider various technologies and financing options.
AESC Engineers are setting the standard of quality in regulatory compliance. AESC’s work as technical reviewer and support for utility DSM programs was recently evaluated by a California IOU. AESC’s work was found to be the best pool of reviews and standards.
AESC intelligent agents efficiently manage the energy assets and peak loads at single and
multi-station facilities or previously unconnected "power neighborhoods". Using distributed decision making intelligence combined with real time price signals, weather data, and site
specific performance requirements, energy assets are optimized in a complex Critical Peak Pricing (CPP) environment.
LADWP's Energy Efficiency Technical Assistance Program [EETAP] will reimburse up to 100% of the cost of Comprehensive
Energy Audits. AESC is an LADWP-approved Trade Ally committed to delivering audits that help you do more with your energy efficiency investment. As your EETAP audit resource, we'll
focus on your infrastructure requirements and financial goals.
AESC is plugged in to help Oregon schools and school districts drive quality campus improvements. AESC is a qualified energy auditor and modeler under the state’s SB 1149 program, which provides funds for energy upgrades. AESC supplements the existing team of campus facility experts by identifying opportunities, providing project planning services, and maximizing grant funding for energy projects. When the interests of school administrators, facilities professionals, utilities, technology vendors, contractors, and bond managers align, successful projects are the result.
Retrocommissioning (RCx) is a process that optimizes a building’s heating, ventilation and air conditioning (HVAC) system performance to improve efficiency while meeting operational needs. With support from the APS Schools Pilot Program and RCx Program, AESC performed a comprehensive energy audit at the Wickenburg High School campus. The objectives of the audit were to identify opportunities to reduce energy use, improve occupant comfort and prolong equipment life.
In support of California’s strategic plan to accelerate the penetration of energy efficiency technologies, San Diego Gas & Electric’s Emerging Technology program funded a study of rooftop package unit maintenance and control retrofit technology at two fast food restaurant buildings. The primary goals for this project were to determine the energy savings potential and demand response (DR) capabilities of an advanced rooftop controller (ARC) for rooftop units (RTUs) and how a standardized operations and maintenance (O&M) protocol can complement the technology. In order to gain insight into the technology and the O&M procedure, a field test and subsequent analysis were conducted.Read the report here.
In support of California’s strategic plan to accelerate the penetration of energy efficiency technologies, this report presents the findings of a field evaluation of a plug load monitoring and control technology in an office building. The work was executed by Alternative Energy Systems Consulting Inc. for the San Diego Gas and Electric Emerging Technology program. The primary goal for this project was to determine the energy savings of the plug load control technology in a typical office building setting. The technology consists of networked power strips which communicate with an external vendor cloud server. The cloud server hosts data collection, trending, and controls through the use of scheduling and logical rules. Each power strip receptacle switches on and off according to user-defined schedules or master/control rules. The estimated cost for 104 four-receptacle power strips, 3 cloud communication bridges, and annual data service fees is about $11,933 for the first year and $1,040 each subsequent year. Read the report here.
The emerging technology (ET) presented in this report is an HVAC management system with dynamic energy and demand optimization designed for commercial rooftop units (RTUs) and split system applications. The ET replaces a traditional thermostat with multiple sensors that measure dry-bulb temperature and relative humidity in a zone. The information from the sensors is sent to an on-site controller, which relays the information to a cloud server for storage, analysis, and reporting. The on-site system then dynamically evaluates zone conditions using the sensor data, weather data (as a proxy for radiant heat), schedule information, as well as specific zone-by-zone properties such as air flow rates that are stored in the system’s database. The controller then activates fans, compressors, and furnaces as applicable to maintain a “comfort” setpoint. The control mechanism differs from traditional thermostats, where fans and compressors are activated based solel y on a specific dry-bulb temperature versus the whole comfort temperature relative humidity range. Read the report here.
AESC conducted field tests at six commercial building sites and evaluated the performance of three emerging evaporative cooling technologies: 1) outdoor supply air indirect evaporative pre-cooling; 2) condenser air direct evaporative pre-cooling; and 3) integrated systems implementing both 1 and 2. The evaporative retrofit components increased the efficiency of RTUs during low humidity and high temperature conditions, which typically occur when the grid is most stressed. Therefore, the technology not only provides a benefit in terms of energy savings and cost reduction to the customer, but also helps the utilities to lower their peak demands. Read the report here.
In support of California's strategic plan to accelerate the penetration of energy efficiency technologies, this report presents the findings of a field evaluation of Tier 2 advanced power strips (APS) installed at residential audio/video (A/V) systems and commercial office and computer lab workstations (PC). The work was executed by Alternative Energy Systems Consulting, for the San Diego Gas and Electric Emerging Technology program. RMS Consulting, CalPlug, CalTF, and the power strip vendor and manufacturer contributed additional direction, assistance, and field work in support of the project. Read the report here.
In support of California’s strategic plan to accelerate the penetration of energy efficiency technologies, AESC executed a study of a new fan motor technology with funding, guidance, and management by San Diego Gas & Electric Emerging Technologies Program. The primary goals for this project were to determine the energy savings and demand reduction of a permanent magnet synchronous motor with an innovative control design used in supermarket refrigerated cases.Read the report here.
This field assessment evaluates the effectiveness of an emerging energy efficient technology that uses solar energy. It directly supports the penetration of similar technologies in the residential and small commercial marketplace. The assessment demonstrates how a multifamily pool pump system was retrofitted with a variable speed drive (VSD) pump and two solar-powered pumps to reduce grid energy consumption, especially during peak hours. The project seeks to verify that this proposed emerging technology system is able to maintain the minimum health code required filtration flow rate and to quantify the total energy savings. The energy savings result from the installation of an efficient VSD pump and two solar photovoltaic powered pumps. Read the Solar Powered Commercial DC Pool Pump report here.
AESC conducted independent measurement and evaluation for Pasadena Water and Power on Variable Air Volume Fume Hoods. As part of this effort, AESC reviewed and validated project results, developed a spreadsheet based tool that could assist potential users in estimating the potential savings (see the Tools section below for more information) and examined the type of rebate or incentive that could be offered to encourage end user adoption of this energy saving measure. Read the PWP DEED Savings Comparison report here.
This project was designed to assess the energy savings potential of Tier 2 advanced power strips (APS) in residential audio/video (AV) applications and to support market adoption of the technology. The project goals were to measure and quantify the energy savings and demand reduction associated with Tier 2 APS devices, their usability, and customer acceptance. The study was motivated by the large, unaddressed standby energy consumption of consumer electronics and the potential to contribute towards California’s strategic energy efficiency goals. The results could inform program development, consumers, product design, and help increase APS adoption. Read the Energy Savings of Tier 2 Advanced Power Strips in Residential AV Systems report here.
When air contacts water, some of the liquid water evaporates to a gaseous state in the air stream. In this process, heat is removed from the air stream and added to the water as it evaporates, and thus the air becomes cool and moist. This heat transfer through the evaporation of water is the basis of evaporative cooling technologies. AESC developed this tip sheet and concise technology description. Read the Evaporative Cooling Technologies report here.
The City of Carlsbad, CA, contracted Alternative Energy Systems Consulting, Inc. (AESC) to conduct photovoltaic (PV) feasibility studies for the Alga Norte Community Park and the Safety Training Center. The purpose of the studies was to determine the size, cost, performance and internal rate of return for the PV systems at each site. Click the name of the study for more information. Read the City of Carlsbad PV Study report here.
AESC helps Collotype Labels in Napa California save energy by recommending a ductwork re-design instead of installing additional package units resulting in annual savings of 370,000 kWh with an increase in peak demand reduction to 50kW. Read the Collotype Labels Study here.
AESC's team identified 43 potential retro-commissioning, energy efficiency, load management, demand response and self-generation measures. The energy efficiency measures identified by the audit team supported the goal of how to do the same job with less energy. AESC intentionally avoided costly system modifications, and focused on reducing the existing systems' energy intensity. Click the name of the study for more information. Read the Vallejo Water District Study here.
Analysis of three different sites at Rock Island Arsenal resulted in selecting the central steam plant as the optimal location for a 1-MW fuel cell. Detailed stochastic analysis of the benefits of the fuel cell implementation resulted in a net savings of $82k per year with a CO2 emissions reduction of over 4,000 tons per year at 80% certainty. Click the linked study above to learn more. Read the Rock Island Arsenal Fuel Cell Implementation Study here.
AESC performed a preliminary, small-scale pilot test on the Smartcool ECO3 to assess the potential energy savings and comfort levels provided by the technology. This initial look at the ECO3, which augments thermostatic controls by adding dynamic compressor optimization functionality to reduce cooling and heating systems' energy consumption, demonstrated it has potential and would benefit from a larger, more comprehensive study. Read the SmartCool ECO3 Pilot Test here.
AESC's study shows how applying intelligent software agent technology expands the potential delivery of renewable energy through integration with storage technology and improved management of existing transmission facilities. Click the above link to read more about the intelligent agents. Read the Agents for Renewables Study here.
The "Agents for Renewables" Project was successfully completed in June 2011.
This project is the latest of three successful California Energy Commission funded projects involving the use of AESC`s intelligent software agent technology.