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A. General Feasibility
Studies and Technical Support
OES was incorporated primarily to perform
general feasibility studies for all utility customers in New York
State and the surrounding areas. In the past three years, since
incorporation, OES has performed 61 feasibility studies covering 34.9
million total square feet. Thirteen of these audits were for customers
that utilized NYSERDA funding opportunities directly with OES.
Optimized Energy Services, Inc. uses an
energy auditing approach that is system wide. OES focuses on all the
energy consuming equipment and the equipments’ interaction with the
facilities. Additionally, OES evaluates operational, utility and
equipment related opportunities during the energy audit.
As new technologies or improved operating
procedures present themselves and have been time proven, OES
encourages our customers to embrace and implement them. OES also
provides ongoing assistance to our customer base at no cost in order
to ensure that the audit to implementation stages are carried out and
to continually educate the customer in order to make the best energy
use decisions.
The following represents the methodology that
is taken during the evaluation of opportunities at the facilities:
1. Utility Data Collection
and Analysis (
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The most recent 24 months of utility data is
required to be collected and entered into the project database as a
basis for load analysis and economic analysis. All fuels currently
consumed by the customer will be detailed in a utility data
spreadsheet format. The data will be compared against the historical
heating and cooling degree information to provide the most accurate
Btu per square foot per fuel type. This data will also be used to
develop the baseline energy use profile for the facility to be used in
the proposed Energy Conservation Measures analysis. This baseline may
also be compared against computer assisted building modeling for
buildings that have a short utility usage history.
2. HVAC Equipment
Nameplate Data Gathering, Facility Drawings and Site Assessment (
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All pertinent equipment nameplate data will
be documented and be used to determine specific fuel consumptions,
full load and part load operating hours, NEMA ratings, etc and is the
basis for comparison against any proposed method of operation or
equipment change out being proposed under the Energy Conservation
Measures. Additionally, the facility drawings showing equipment
schedules, piping layouts, sizes and locations of electric, gas and
fuel oil services will be evaluated to provide basis for analysis. The
site assessment is necessary to understand operating personnel
activities as it relates to building operation. This is accomplished
through facility walk-through with the building managers and through
discussions about the facility operation. During this period pictures
of pertinent equipment, building façade, roof conditions, and
operational problems will be conducted and stored electronically in
the database for use in the analysis and report.
3. Energy Efficient
Lighting (
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An inventory of all lighting fixtures is
conducted for the entire site. Included in the audit will be lamp
wattage, ballast wattage, fixture type, operating hours and fixture
quantities. As part of the audit, an evaluation will be conducted to
install energy efficient electronic systems including T8 lamps, and a
reduction in lighting load through lower lighting levels if
appropriate.
4. Lighting Controls (
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A subset to the energy efficient lighting,
the lighting controls evaluation consists of identifying opportunities
to turn off lights during low or un-occupied periods. A considerable
amount of energy can be saved through this evaluation. As part of the
lighting controls audit, an evaluation of the patterns of usage will
be conducted and shared with the facility personnel. This evaluation
will be compared with the available technologies currently in the
market place for the best technology fit at the site.
5. Energy Efficient Motors
(
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An inventory of all HVAC related motors is
conducted to include exhaust fans, supply fans, return fans, domestic
water pumps, heating hot water pumps, compressors, etc. to determine
existing efficiency ratings. In addition, an assessment of the annual
operating hours is performed to determine full load hours of
operation. Energy efficient alternatives will be compared for cost and
savings. The start-stop operation is evaluated for proper controls and
maintenance improvements.
6. Variable Frequency
Drives (
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A subset to the energy efficient motor audit,
an evaluation of the motor load and control scenario is conducted to
determine if through the installation of a variable frequency drive,
significant savings can be achieved over the existing mode of
operation.
7. Energy Management
System (
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An inventory of all HVAC equipment is
conducted and evaluated for the current control scenario. Those pieces
of equipment that are manually controlled will be evaluated against
the control under an energy management system scenario (or improved
local controls.) The improvements include but are not limited to
implementing methods for reducing equipment run time, resetting hot
water temperatures, resetting hot and cold decks on the air handling
equipment and providing proper feedback to the buildings operators.
The audit will also provide a database for unit characteristics to
include kW, horsepower, flow rate, capacity, voltage, amperage, hertz,
phase, location and area served.
8. Air Condition System
Evaluation (
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An evaluation of the air conditioning systems
is conducted to determine existing system efficiency and make the
economic comparison of system modifications to include air flow,
co-efficient of performance, heat rejection methodology, fuel
switching, insulation and hours of operation.
9. Heating System
Evaluation (
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An evaluation of the heating system is
conducted to include the boiler efficiency, distribution efficiency,
presence of water treatment, steam traps, make up water rate,
insulation, end use equipment efficiency i.e. unit heaters or unit
ventilators. In addition, an inventory of all electric heating
equipment is performed to determine if a hydronic or direct fired
fossil fuel alternative is cost effective.
10. Building Envelope
Improvements (
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An evaluation of the building envelope will
be conducted to include a complete inventory and assessment of the
windows, doors, relief fans and other penetrations to determine of
excessive infiltration is occurring. We will evaluate building
pressurization to determine if the structure is positively or
negatively pressurized contributing to system losses. We will evaluate
new windows, window film, door and window seals, exhaust fan and
relief fan balance, insulated overhead doors and insulation in
general.
11. Fuel Switching and
Dual Fuel Applications (
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Prime mover evaluation will be conducted to
determine the effectiveness and economic advantage of fuel switching.
Analysis of fuel switching could include cogeneration, alternative
pumping other than electric; environmentally friendly alternatives
include solar power via photovoltaic and hydronic heating
opportunities.
B. Implementation
Assistance
(
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Optimized Energy Services, Inc. has provided
technical support and assistance for customers that needed to move
forward to a Request For Proposal (RFP) process after the full detail
energy audit was performed. The customers were provided with in depth
understanding of the flexible options of implementing the proposed and
approved energy conservation measures for their facilities. We ensured
that the customer could make the best financial and operational
decision so that they would receive the full benefit of installing all
measures.
We have performed this service for five
separate customers under this scenario, Arden Hill Properties, Onteora
Central School District, Warwick Central School District, Ice Time
Inc. and Palmer Road Properties. OES developed the bid documents and
assisted in the contractor selection process for the school districts.
Arden Hill, Ice Time and Palmer Road have elected to move forward in a
piecemeal fashion with their own staff implementing some of the
measures and general contracting others. For these customers we
provided a great deal of assistance in providing a network of
contractors for them to work with, financing of the project and the
interfacing with NYSERDA for applicable rebate incentives.
Both school locations completed the selection
process. Warwick CSD has contracted with an ESCO to implement the
suggested measures but Onteora has not moved forward due to internal
issues even though the bid process was completed and the ESCO provided
it’s final contract. Both of the aforementioned are locations that
contracted with OES to perform the detailed energy audit though
NYSERDA.
OES has also assisted the Town of Hamden and
the Town of Fairfield, both located in Connecticut, with review and
analysis of the detailed energy audits that were provided by the ESCOs.
The review was a detailed analysis of the approach and techniques that
were utilized for baseline modeling and the proposed conservation
measures including verity of the savings and costs. In both cases we
improved the communication standard between the customer and the ESCO
in relation to the measurement and verification process/methodology,
derivation of achievable savings and improvement in reporting.
C. Energy Procurement
(
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Optimized Energy Services, Inc. has qualified
staff that has provided aggregation, load profiling and procurement of
energy supply for large utility customers in New York State. Specific
experience is with the Orange & Rockland Power Pick Program since its
inception in 1995. Mr. Eric Ackerly was the primary contact for the
United States Military Academy who participated in the Power Pick
program through Noresco while employed with that firm. Energy supply
contracts were negotiated with Cinergy on behalf of the USMA over a
two year period. Cinergy was also the major supplier to other large
and small customers that participated in the Power Pick program. Mr.
Ackerly transitioned to a firm that was the only other major supplier
to commercial and industrial loads in the Power Pick program and
regularly program managed between 60 mW and 85 mW of load aggregation
and procurement. Mr. Ackerly performed various other NYSERDA sponsored
load aggregation studies including an Ulster County BOCES study and an
Orange-Ulster County BOCES study. Additionally, Mr. Ackerly provided
project support for a State of Connecticut Load Aggregation study.
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