The customer completed a retro-commissioning project in an 11-story multi-tenant office building. The project implemented three measures: (1) revised hot deck OA reset scheduling, (2) optimum start/stop AHU controls, and (3) OA damper repairs to allow airside economizing.
The customer completed a retro-commissioning project in an 11-story multi-tenant office building. The project implemented three measures: (1) revised hot deck OA reset scheduling, (2) optimum start/stop AHU controls, and (3) OA damper repairs to allow airside economizing.
The RCx project at a school district involves the following measures at six buildings: EEM-3: Reduce operating hours of air conditioning (AC) units and heat pumps, EEM-4: Set cooling tower (CT) fans condenser water (CW) pumps speed to 0% when the chiller does not operate, and EEM-5: Increase lock out temperature of economizers in AC units and heat pumps. The project also implemented two other measures; EEM-1 - replace existing AC units with high efficiency units, and EEM-2 - replace existing heat pumps with high efficiency heat pumps. However, the IOU incentives, hence have not been considered as the project scope.
39 RCx measures at six healthcare campuses. At boilers, measures include: optimization of boiler controls, steam
pressure resets, hot water temperature resets, and lockout schedules. At air handling units,
measures include: optimization of AHU scheduling, economizer controls, cold/hot deck
temperature controls, and supply air temperature reset controls. At air conditioning units,
measures include: optimization of operating schedules, supply air temperature resets, and static
pressure resets. At terminal boxes, measures include: optimization of operating schedules and
minimum flow adjustments.
Supply air temperature resets for four AHUs,
airflow setback for one AHU, chilled water
supply temperature reset, and heating hot
water supply temperature reset
Light Sensor, LED Fixture, Linear Fluorescent Fixture
The project involves interior lighting retrofit to replace T8 and T5 linear fluorescent fixtures with
T8 linear fluorescent and LED fixtures. The project also involves the installation of dimming
controls in select areas of the building.
Current Limiting Protector (CLiPs): Installation of CLiPs to bypass the existing line reactors on the high voltage bus between incoming PG&E lines and the plant as well as the refinery's cogeneration unit to reduce power losses (I^2R losses) during normal operations.
The proposed measure involves replacement
of one existing chiller (CH-6) with a high
efficiency chiller at a telecommunication and
data center facility in California CZ 03.
The customer also proposes to replace
another existing chiller (CH-5) with a high
efficiency chiller under a separate incentive
application (2K13215903).
The customer is retrofitting three existing 100% outside air handlers in a office building to allow recirculated airflow during periods of heating (the building will still use 100% OA during cooling periods).
Insulate bare surface hot water pipes,
flanges, valves, pumps and strainer surfaces
with 1-1.5 inch thick mineral fiber blanket
and canvas jacket sleeving.
Sawmill Upgrade: Replace hydraulic drives with electronic
drives; upgrade the large log mill that will
increase production by 15%, while
simultaneously reducing the connected load
by 690 HP.
Sawmill Upgrade: Replace hydraulic drives with electronic drives; upgrade the large log mill that will increase production by 15%, while simultaneously reducing the connected load by 690 HP.
Food Processing Evaporator System Modifications: Replace single effect evaporator system with a three effect evaporator system that includes MVR and TVR.
Reciprocating Water Chiller, Screw Water Chiller, Adjustable Speed Drive
Chiller Retrofit; Plant Controls: The customer is replacing a 72-ton, watercooled,
dual compressor, Carrier glycol
reciprocating chiller with a new 89-ton,
water-cooled, Carrier glycol screw chiller.
The customer is also retrofitting their
primary and secondary glycol and condenser
water pumps with variable speed drives and
implementing a condenser water temperature
reset control strategy.
REEP-108 Data Requests: The implementer states that Hydrogen is currently being vented and it is standard practice to vent
Hydrogen. From prior experience staff consultants feel that the venting claim is unsupportable. By law,
refineries in California are not allowed to vent highly combustible gas such as Hydrogen in the air. Any
excess Hydrogen produced is normally piped into the refinery gas, and excess volume, if any, may be
burned under the emergency flare rules. That occurrence is extremely rare. Staff consultants, therefore,
are unable to accept the implementer's claim that Hydrogen venting is standard practice. In our opinion,
ISP is piping Hydrogen into the refinery pipeline or burning it to produce process heat. Since Hydrogen
has some BTU value, it is inconceivable that a refinery that is buying natural gas from a utility would not
use the purest form of Hydrogen produced by the methane reformer.
Please submit evidence in the form of permit to demonstrate that millions of therms of Hydrogen is
being allowed to be vented. Also submit a low-rigor ISP study to support the claim of venting Hydrogen,
not reusing it as fuel is standard practice. This is a show-stopper review and the ISP study is triggered by
a project application. Therefore, this project and all similar projects will remain on hold until the ISP
claim is substantiated. Staff consultants expected PG&E's own show-stopper assessment to have
accompanied this application.
Furnace #2 Upgrade: The scope of the project is to refurbish an existing glass furnace with energy reducing upgrades that allow capacity increases at lower gas input per unit of product delivered.
Static switch installation: This project adds new load switching technology to two existing 500 kW uninterruptible power supplies. The switches raise the systems operating efficiencies to approximately 99% from their assumed baseline efficiencies of ~93%.
Install new automotive paint process: The project is a new paint booth system in an automotive manufacturing facility. The project includes the installation of the pretreatment dip tanks, electro-deposition undercoating tank, paint spray booths including the HVAC systems serving them.
Compressed air system modifications: Replace air compressor sequencing controller, repair air leaks, adjust system pressure set points, and replace timer drains with no loss drains.
LIGHTING RETROFIT/NEW-INT LED HORTICULTURAL: Install 256 high efficiency air cooled LED horticultural lighting in an indoor facility expansion with a baseline of 50/50 CMH and LED fixtures.
PROCESS RETROFIT/NEW-FAN-VFD, PROCESS RETROFIT/NEW-FAN-EFFICIENT UNIT: Installation of (63) 72" New Free Stall High Efficiency Barn Fans as an New Load Project
Add floating head pressure controls, an auto-purger unit to eliminate non-condensable air, and add VFD controls on the air handler units in the cold storage building at a large wine production facility.
Measure 1
REFRIGERATION - EVAPORATOR - FAN CONTROLLER - To-Code/Std
Measure 2
REFRIGERATION RETROFIT/NEW-SYSTEM-ADD/MODIFY EQUIPMENT
Measure 3
REFRIGERATION - CONTROLS - FLOATING HEAD PRESSURE - To-Code/Std
LED Fixture, Linear Fluorescent Fixture, HID Fixture
Replace (304) T12, T8, and T5 linear fluorescent lamps, (47) exterior High Pressure Sodium and Metal Halide lamps/ballasts, and (7) high bay fixtures with LEDs in a food processing plant.
Replaced/Retrofit (183) T8 4' 32w 4L NBF - Existing 2nd Gen with (183) (4)KT-LED12T8-48G-835-E(1)KTLD-4LT8-UV-12C-VDIM at a Retail - Single-Story Large (RTL) facility
California Community Colleges - Savings by Design Whole Building: New construction of three community college buildings with a gross floor area of 24,448 sf.
Add three Variable Frequency Drives on the three 30HP wine transfer pumps that are currently operating by manual throttle control through slide valves.
Add iZ Systems Automation Platform to eight compressor system ((1) 300 HP, (2) 250 HP, (1) 200 HP, (2) 150 HP, (1) 100 HP and (1) 75 HP) located in four separate areas running on their individual pressure bands to control all compressors centrally based on rate of pressure change algorithms on central pressure signals.
Install (2) 200 HP variable frequency drive (VFD) oil free compressors, install (2) heated dryers, install 5,220 gallons of storage, and install no loss air drains to replace the existing (7) non VFD compressors and purge air dryers at a computer hardware
Addition of ductwork, dampers and actuators to allow partial recirculation of exhaust air that will reduce temperature rise at the 1.8 MMBTU/hr burner for seven existing industrial laundry facility dryers.
Replace one 75 hp fixed speed oil-flooded rotary screw compressor (with load/unload control) with one new 50hp variable speed drive (VSD) rotary screw compressor, in a food processing facility.
Early retirement of a Tomato Processor's single-effect evaporator with a new system that will use both mechanical vapor recompression (MVR) and multi-effect evaporator technologies to reduce overall energy usage while maintaining capacity to evaporate 40,000 pph of water from inlet tomato product.
Retrocommissioning project of 3-building campus which includes the following measures: Enable ESS mode on five main UPS's, enable overnight setbacks and implement Optimum Start routine, tune cooling control and commission DSP and SAT resets, and improve airflow and temperature control in data center.
HVAC Technology, Lighting - Fixtures, Whole Building
Dishwasher, Faucet Aerator, Showerhead
This is a 296 unit apartment community consisting of multiple buildings of different sizes and arrangements, with extensive outdoor areas. The installed retrofits include:
LED common area and apartment lighting
Low-flow faucet aerators and showerheads
Smart thermostats
Energy efficient dishwashers and refrigerators
Attic insulation up to R-30
HVAC Technology, Lighting - Fixtures, Whole Building
LED Fixture, Faucet Aerator, Showerhead
This is a 309 unit low-rise apartment complex. This site underwent the following upgrades:
NEST smart thermostats
Low-flow faucet areators, 1.0-gpm and 1.5-gpm
Low-flow showerheads at 1.5-pgm
High efficacy apartment lighting
High efficacy common area lighting
VSD recirc pumps for DHW system
HVAC Technology, Lighting - Fixtures, Whole Building
LED Fixture, Faucet Aerator, Showerhead
This is a 309 unit low-rise apartment complex. This site underwent the following upgrades:
NEST smart thermostats
Low-flow faucet areators, 1.0-gpm and 1.5-gpm
Low-flow showerheads at 1.5-pgm
High efficacy apartment lighting
High efficacy common area lighting
VSD recirc pumps for DHW system
(10) LEDone LOD-MAAL-100W-50K-TPIII-SBA fixtures at 100W were installed, replacing the existing 400W HPS fixtures
(3) Verlux ST45W27V50KA fixtures at 45W were installed, replacing the existing 250W HPS fixtures
(7) James Lighting ZY-15W1200 BONS (5000K) fixtures at 30W were installed, replacing the existing 59W 4ft 32W 2-lamp fixtures
(7) James Lighting ZY-15W1200 BONS (5000K) fixtures at 30W were installed, replacing the existing 118W 4ft 32W 4-lamp fixtures
(11) James Lighting ZY-15W1200 BONS (5000K) fixtures at 30W were installed, replacing the existing 109W 8ft 59W 2-lamp fixtures
(3) LEDone LOD-FL-50W50K-HL fixtures at 50W were installed, replacing the existing 250W HPS fixtures
Measure 1: Replace twelve (12) HID Canopy fixtures with LED fixtures (Measure code CLB81). The retrofit includes installation of LED fixtures in the following existing exterior lighting fixture types:
Replace (12) – 400 Watt High Pressure Sodium Canopy fixtures with (12) – 100 Watt LED fixtures
Measure 2: Replace one (1) HID Flood fixtures with an LED fixture (Measure code CLB50). The retrofit includes installation of an LED fixture in the following existing exterior lighting fixture type:
Replace (1) – 250 Watt High Pressure Sodium Flood fixture with (1) – 50 Watt LED fixture
Measure 3: Replace five (5) HID Wall Pack fixtures with LED fixtures (Measure code CLB52). The retrofit includes installation of LED fixtures in the following existing exterior lighting fixture types:
Replace (5) – 400 Watt Metal Halide Wall Pack fixtures with (5) – 80 Watt LED fixtures
New construction, 3-story Academic Leadership and Enrollment Center, with a gross conditioned square footage of 74,804 sqft aiming for 35.8% better than baseline.
Centrifugal Water Chiller, Screw Water Chiller, Adjustable Speed Drive
Accelerated replacement of an existing 250 ton water cooled screw process chiller at a bottling plant with a more efficient 160 ton water cooled VFD centrifugal chiller.
Optimization, Air Economizer, Temperature Reset Control
Implement controls strategy to optimize existing air handling units and chiller operation through temperature resets, set-backs, and economizer operation for cleanroom and office spaces.
Compressed air system controls project at a food processor to bring (1) 200 HP and (2) 125 HP compressors in two separate areas running on their individual pressure bands into a single central arrangement.
Optimization, Temperature Reset Control, Adjustable Speed Drive
Implementimg thirteen (13) measures. Eleven (11) are BRO measures and two (2) are add on retrofit (AOE). These measures include IMplement optimum start/stop, optimize economizer controls, duct static pressure reset, data center temperature, VFD controls, hot water plant lockout temperature, reset chilled water supply temperature, condenser water reset.
Compressed air system controls project; building up to the Title 24 code in terms of system controls. There are currently (1) 250 horsepower, (1) 200 horsepower, (3) 125 horsepower, (5) 75 horsepower and (1) 50 horsepower compressors in seven separate areas running on their individual pressure bands causing the plant to have more online horsepower than necessary. iZ Systems Automation Platform will be installed to control all eleven compressors based on rate of pressure change algorithms on one central pressure signal in the most efficient arrangement possible.
Optimization, Air Economizer, Temperature Reset Control
Implement seven(7) BRO measures for a large office.
This project involves the following measures:
RCM1 – Scheduling Optimization for B2 MAU and B3a AHU-1 through AHU-3
RCM2 – Optimize Economizer Controls on B1 AC-1, B2 AC-1 & AC-2, B3a AHU-2 & AHU-3, and B3b AHU-1
RCM3 – Static Pressure Reset on B1 AC-1 through AC-4, B2 AC-1 & AC-3, and B3a AHU-1 through AHU-3
RCM4 – Supply Air Temperature Reset on B1 AC-1 through AC-4, B2 AC-1 & AC-2, and B3b AHU-1 & AHU-2
RCM5 – Increase Chilled Water Supply Temperature of B2 Chillers Serving Data Center
RCM6 – Chilled Water Supply Temperature Reset on B3 Chillers
RCM7 – Add Schedule and Lockout Controls on Heating Units (DFs) Fans in B1 and B2
EEM-1: Install automation platform to efficiently control air compressors (up to Title-24 compliance). This involves adding the iZ Systems Automation Platform “to control all four compressors based on rate of pressure change algorithms on one central pressure signal in the most efficient arrangement possible.”
The project is Accelerated Replacement (AR) of two (2) 100 HP, single stage, rotary screw air compressors with load/unload control. The proposed replacement is a 200 HP, single stage, rotary screw compressor with VFD control.
This project is not approved because this measure is not incented in NC
refrigerated warehouses. For applications of this measure in facilities other than refrigerated warehouses, ED may
wish to conduct an industry standard practice assessment in collaboration with PG&E. It appears though that T24
requirement could be considered as the base standard practice even for other industrial sectors. If PG&E would
like to discuss ED’s assessment during the weekly call or at a specifically scheduled time, we are available.
The project has been conditionally approved by ED. Refer to ex ante review report (X068 PGE 2K12079864 Phase 2 EAR 2012_0831 ver 2.docx and X068 PGE 2K1209864 ED Calculation 2012_0831.xlxs) for the full requirements and context of this request.
ED has found mistakes in the analysis PG&E has submitted. A critical assumption in the
PG&E analysis is that the floor-by-floor systems are constant volume reheat. ED had questioned
this assumption in their previous review, and was assured that the system was indeed constant
volume. But, based on information provided in the retrocommissioning verification report, that
assumptions does not seem to be valid. Per revised calculations, ED recommends frozen annual
energy savings of 66,769 kWh and 18.23 kW, and gas savings of 5,459 therms
Air Economizer, Temperature Reset Control, Adjustable Speed Drive
A conference call with ED consultants, PG&E, and Ecology Action was arranged for December 14, 2012 to discuss the M&V plans proposed by ED for HOTEL001ARCX on November 30, 2012. This project was splintered from the original project submission, HOTEL001RCX, in order to expedite the implementation of other project measures that had been conditionally approved by ED. The M&V plan that was proposed in the phase II HOTEL001ARCX EAR was largely targeted towards collecting baseline information for a hotel guestroom controls measure.
Air Economizer, Temperature Reset Control, Adjustable Speed Drive
CPUC staff waives further review of the above referenced project. The utility will apply a Gross Realization Rate of 0.9 to the ex ante savings values at project claims.
Energy Division selected PG&E NC0120306 for ED review in July 2012. PG&E provided documentation for this application in August 2012. In response to ED’s follow-up data request, PG&E informed ED that some of the measures originally shown in the application documents had been moved into a third party program and are documented under application number NC0117386. PG&E recently informed ED that the post field inspection for NC0117386 has been completed and final internal review is pending for the project, with incentive payment expected by the end of November 2012.
After PG&E recently made changes to this custom project application, PG&E #2K12104029,
ED finds the recent submittal acceptable, and therefore, ED chooses to waive further
reviews. PG&E will apply the 0.90 GRR factor when filing for this project’s claim.
The majority of the three panel reviewers, by a 2-1 margin, decided that the replacement of HVAC
equipment and controls at the is a normal replacement project, not an early
replacement project.
CPUC staff custom projects ex ante review team held a conference call on November 15, 2013
with PG&E and the 3P implementer, EMCOR, on the large phase 1 campus lighting project.
PG&E is currently having EMCOR address six calculation issues that ED raised:
Commission staff reviewed the documentation for this project received on October 28, 2014
from PG&E. Staff was expecting final savings calculations for a group of five buildings that
underwent a lighting fixture and controls retrofit under Project #: 2K1221049C which was
conditionally approved at 692,956.8 kWh.
Optimization, All Equipment, Water Side Economizer
ED is unable to approve the project’s ex ante savings until the following are clarified:
1. Data center load is 56 W/sf, or about 28% of design value.
2. CRAH supply/return temperature rise is 12 deg F, which is less than half of the expected value. Thus, even if the data center goes up to the original design load, the fan power savings would be significantly reduced compared to the original estimate.
3. In the July trend data, the condenser entering temperature is sometimes lower than the outdoor wet bulb temperature, which is not possible. Some effort should be made to determine the cause of this discrepancy and to formulate a possible workaround to make use of the valid portions of the trend data.
4. The “Actual” chiller performance curve is based on a condenser entering temperature of 72 deg F. The analysis should account for the degradation in chiller efficiency at higher condensing temperatures in order to make the peak kW calculation accurate.
5. Outdoor temperature is not shown for the January trend data. There are points in that data set where the transition between economizer and chiller operation appears to occur. If outdoor temperature were known, the transition point assumption of 55 F used in the model could be verified.
6. Incremental cost calculations appear to be reasonable.
CPUC staff waives further review of the above referenced project. The utility will apply a Gross Realization Rate of 0.9 to the ex ante savings values at project claims. Upon completion of this project, please upload all final project documentations to this project’s directory in the CMPA. Upon submitting the utility claims for this project to the CPUC, please upload to this project’s directory in the CMPA a document indicating this project’s claim ID and the quarter and year in which the project is claimed.
CPUC staff waives further review of the above referenced project. The utility will apply a Gross Realization Rate of 0.9 to the ex ante savings values at project claims. Upon completion of this project, please upload all final project documentations to this project’s directory in the CMPA. Upon submitting the utility claims for this project to the CPUC, please upload to this project’s directory in the CMPA a document indicating this project’s claim ID and the quarter and year in which the project is claimed.
Upon review of PG&E’s revised calculations (with the almond drying air recirculation removed), CPUC staff waives further review of this project. PG&E is to upload in the CMPA project file the project’s final energy savings calculations, the incentive payments, and the completed IR package. Also, PG&E is to include the actual PG&E Claim ID numbers for each measure, once incentives are paid, in its claims reporting.
LED Fixture, Linear Fluorescent Fixture, HID Fixture
Commission staff waives further review of the above referenced project. PG&E should apply a GRR of 0.9 to the utility’s post-installation trued up gross savings for this project at claims.
CPUC staff waives further review of the above referenced project. The utility will apply a Gross Realization Rate of 0.9 to the ex ante savings values at project claims. Upon completion of this project, please upload all final project documentations to this project’s directory in the CMPA. Upon submitting the utility claims for this project to the CPUC, please upload to this project’s directory in the CMPA a document indicating this project’s claim ID and the quarter and year in which the project is claimed.
Project Descriptions: High Emissivity Coating on Furnace Refractory: The measure proposes to increase the heat transfer efficiency by applying a proprietary water-based coating to refractory surfaces inside an industrial furnace.
Final Memo Summary:
CPUC Staff note that PG&E staff has satisfactorily responded to the requirements in Staff’s final disposition. The final ex ante savings have been revised to match the CPUC Staff recommended values of 590,078 therms, 0 kW, 0 kWh. The project is an REA project type with project cost of $315,055.
Project Descriptions:
The customer proposes to implement four RCx measures at a large office building in order to improve the operational efficiency of the HVAC system.
EAR Waiver Summary:
CPUC staff waives further review of the above referenced project. However, PG&E must address the below issues and upload the requested items with the final project documentation onto this project’s folder in the
CMPA:
• The project’s measure costs are not itemized. PG&E must obtain and upload the itemized
measure costs, including equipment and labor costs by measure, to the project’s CMPA
folder.
• The CHW Reset eligibility is still a concern since a facility built in 1976 would have replaced
their original chillers by now. That history was not documented. If the chillers were replaced
when the 2005 Title 24 went into effect, then the CHW Reset measure may not be eligible.
PG&E must determine if and when the facility chillers were replaced, obtain and review the
permit for the chiller replacement, and determine the measure eligibility. If the CHW Reset is
found to be ineligible, CHW Reset must be incorporated into the baseline modeling and the
ex ante savings estimates and incentives revised.
• PG&E intends to pay an incentive for a zero cost measure, a chiller schedule operational
change, because the savings and costs are bundled at the project level, and the incentive cap
doesn’t kick in. This appears to circumvent the program rules not to provide incentives to
measures with a one year or less simple payback. The incentive for this measure represents
$4,276.66, about 5% of the total incentives. PG&E must provide rationale to justify awarding
an incentive for this no cost measure and not following the stipulated program rules.
Project Descriptions:
Seven (7) HVAC & Guest room controls measures: HVAC retrofit project for a luxury hotel.
Document Summary:
The EEM1 (guestroom controls) post M&V plan intends to collect a sample of guestroom FCU operation, guestroom occupancy data, and daily vacancy data (for the sampled guestrooms and the average for the hotel) over a period of two weeks in order to modify the hotel eQUEST model with site-specific findings. Fan motor state and time-series supply & return temperatures will also be collected over a period of 2 weeks. These data will be used to create site-specific heating and cooling hourly thermostat schedules for the guestroom zones in the eQUEST model. The guestroom zones and respective thermostat schedules can be categorized in to rented and unrented room types using the collected vacancy data.
Project Description:
This project, involves the removal of fixtures and replacing them with a total of 38 fixtures.
Document Summary:
ED observations and recommendations.
Project Description:
Steam valve replacement: Replacing steam let down valve with an automated valve to reduce excess steam vented to atmosphere.
Document Summary:
By this memo, Staff reaffirms denial of project IRCx 050 completely – as a retrofit or an RCx measure. PG&E should not claim any savings from IRCx 050.
Light Sensor, Linear Fluorescent Fixture, HID Fixture
Project Description:
Lighting and Controls: Linear fluorescent and HID lighting retrofit with occupancy sensor installation.
Document Summary:
CPUC Staff waives the post-installation review of this project. PG&E will apply a GRR of 0.9 to the final M&V ex ante savings results of approximately 900,000 kWh at project claims. PG&E will upload all final documentation for this project to the CMPA. PG&E will also upload to the CMPA a document indicating this project's claim ID number and the quarter and year this project was claim when those information are available.
Project Description:
HVAC and Lighting retrofits: Several lighting projects spanning multiple locations and one HVAC central plant retrofit project for an institutional office facility.
Document Summary:
HVAC project
1. Provide a status update for the HVAC portion of the project. Has design been completed? Has equipment been ordered? When is installation expected to begin?
2. ED cannot fully comprehend the scope of the HVAC project. A detailed description of the existing and proposed systems has not been provided.
3. For each affected system, provide a description of the existing and proposed equipment, system type and configuration, numbers of units, capacity, hours of operation, controls, set points, reset and lockout strategies, normal hours of occupancy for areas served by the affected equipment, etc. Provide the age and condition of the affected equipment....
Lighting projects
1. Please provide a facsimile of the original application form signed and dated by the customer representative. Please provide evidence of program influence to support the early retirement claims for the lighting retrofits.
2. Please provide an unlocked version of the modified lighting calculator or the password to unlock the spreadsheet.
3. Provide a site-by-site status update for the lighting portion of the project. Has equipment been ordered? When is installation expected to begin?...
Project Description: HVAC and Lighting retrofits: Several lighting projects spanning multiple locations and one HVAC central plant retrofit project for an institutional office facility. Document Summary: Revised from file X380 Notes 2013-10-23.pdf.
Project Description:
Rotary Hearth Furnaces: Replacement of Two Furnaces for Increased Production.
Document Summary:
CPUC staff waives further review of the above referenced project. The utility will apply a Gross Realization
Rate of 0.9 to the ex ante savings values at project claims. Upon completion of this project, please upload
all final project documentations to this project’s directory in the CMPA. Upon submitting the utility claims
for this project to the CPUC, please upload to this project’s directory in the CMPA a document indicating
this project’s claim ID and the quarter and year in which the project is claimed.
This email contains an initial review of the project X390 KEAI-027 Phase 2 (EEGA 7915), a controls upgrade project involving 1.) HVAC supply air static pressure reset and, 2.) night time sweep controls. This email also contains a request for additional documentation of the pre-existing conditions and proposed project.
Project Description:
Tube Seals on Crude Oil Furnaces: Replace degraded tube seals on three (3) crude oil furnaces.
Document Summary:
By this memo, Staff reaffirms denial of project IRCx 050 completely – as a retrofit or an RCx measure. PG&E should not claim any savings from IRCx 050.
The documents posted did not include final calculations spreadsheet. The application package appeared to use about 8300 hours to calculate savings, not 6900 hours. Since the DOE tool does not seem to have a way to enter local weather data, suggest use hours when the outside temperature is 75 F or less, not the compressor operating hours. Ideally the temperature differential at which dampers open should be similar to an HVAC economizer operation. The suggested 75F temperature is probably liberal.
Project Description:
Ring valve upgrade: Replacing plate valves with ring valves.
Document Summary:
Commission staff (CS) has reviewed PG&E’s partial response dated February 11, 2014 to the CS Show Stopper Review dated January 3, 2014 (Attachment 1 - see pages 2-4 of this document for reference) and accepts PG&E’s explanation that replacing a plate valve with a ring valve is NOT industry standard practice. However, there is a great discrepancy between PG&E’s claim of 20 years as EUL of ring valves as compared to not-to-exceed typical estimate of 3 years found from research CS consultants conducted (item #4 of CS disposition).
Project Description:
LED fixtures: The project will replace the exterior High Pressure Sodium (HPS) and Metal Halide (MH) fixtures with LED Fixtures.
Document Summary:
CPUC staff has reviewed the utility's resubmitted initial savings estimate of 493,636 kWh and 120.4 kW (based on the correct PSMH baseline), waives further review of this project, and recommends that the utility applies a GRR of 0.9 to the trued-up savings after post-installation M&V.
CPUC staff finds that this project's measure and the dates are outside the scope and enforcement dates of a recent ISP. Therefore we will waive the ex ante review of this project. This project will receive the GRR of 0.9 applied at utility claims.
Project Description:
Sawmill Upgrade: Replace hydraulic drives with electronic drives; upgrade the large log mill that will increase production by 15%, while simultaneously reducing the connected load by 690 HP.
Document Summary:
During my show-stopper review CPUC staff has two issues that arose during our show-stopper review, which are listed below for this project, X470 - PGE 1206-05 – Large Sawmill Upgrade:
1) PG&E/LMI assigns a normal replacement baseline claim using in situ equipment and conditions. For normal replacement claims, ISP for new construction is the correct baseline. If the IOU & 3rd Party are suggesting that the in situ large saw mill equipment, controls, and configuration would be considered current ISP, then CPUC staff will need this to be clearly demonstrated. A related question that staff would like to understand is whether the 15% capacity expansion is strictly measure-induced or if there is market-driven factors. It is possible that the baseline might be capacity expansion. Nevertheless, whether normal replacement or capacity expansion is the proper baseline is irrelevant because the technical equipment baseline would still remain ISP for new construction, and not the in situ sawmill. A revised baseline analysis appears to be in order.
2) Cogen issue – From previous guidance from CPUC staff, a simple proportional attribution of grid purchases assumes that this measure (which is claimed to save a total of 4.4 million kWh” (2.2 for PG&E’s supply of 2.2 kWh) to “zero-out” the electricity bill for this customer. Previous guidance directs the IOU to demonstrate using at a minimum of daily cogen production (grid exports) and consumption (grid imports) - and perhaps hourly if the data is readily available – needs to demonstrate that the full impact from this project will be seen on the PPP-paying electricity supply.
Project Description:
Ring valve upgrade: Replacing plate valves with ring valves.
Document Summary:
Commission staff (CS) has reviewed PG&E’s partial response dated February 11, 2014 to the CS Show Stopper Review dated January 3, 2014 (Attachment 1 - see pages 2-4 of this document for reference) and accepts PG&E’s explanation that replacing a plate valve with a ring valve is NOT industry standard practice. However, there is a great discrepancy between PG&E’s claim of 20 years as EUL of ring valves as compared to not-to-exceed typical estimate of 3 years found from research CS consultants conducted (item #4 of CS disposition).
The CPUC custom projects ex-ante review (EAR) team has assessed the application paperwork for PG&E 1570-01 (X485) and has determined that the measure is ineligible for incentives because the equipment has been non-operational in the preceding 12 months. As per the Pre-Installation PCIP Report, the pipeline being served by the pumps has been under line repairs since October 2009 and the pumps have been dormant (refer to Section 3.1.2 Existing Conditions, p. 5). The proposed VFD measure is planned to be installed on pumps that have not operated over the past 12 months. Since the IOU custom programs do not allow EE measures installed on equipment that has been non-operational in the preceding 12-months, staff rejects the proposed project.
Project Description:
Ag Pumping: Replace agricultural well pump and bowl.
Document Summary:
Commission Staff request the following information related to project NC0128786 (X495) Job # 6033: 1. What are the type(s) of crops served by this new booster pump? Is this pump serving a new field that has never before been irrigated or was it recently converted from a different crop? Is the booster pump fed from a well or an irrigation ditch? If served by a well, what is the age of the well pump and was it recently renovated or was a new well drilled?...
Project Description:
Whole Building New Construction: Whole building energy evaluation for office building.
Document Summary:
X500 disposition points for discussion:
1. “Most of the savings for the project are a result of changing from a packaged VAV system in the Standard case to a variable refrigerant flow heat pump system. A detailed review of the input files from the Standard case model revealed that the HVAC systems in this model did not have economizers or supply air temperature reset control, which are both required by the 2008 Title 24 energy code for this type of system.”
The ED assumes that economizers and supply air temperature reset controls should be prescriptively required in the baseline mechanical system. The baseline mechanical system in this case is an air-cooled packaged VAV system. AESC addressed why the prescriptive requirement for economizers does not apply in this case. The prescriptive requirement for supply air temperature reset control does not apply in this case because supply air temperature reset is not required in cases where the system has controls that prevent reheating, recooling, and simultaneous heating and cooling to the same zone. The VRF systems here as designed do not have the ability to reheat or re-cool, or simultaneously heat and cool a zone. Thus, the prescriptive requirement for supply air temperature reset does not apply in this case. Explanation:...
Project Description:
Whole Building New Construction: Whole building energy evaluation for office building.
Document Summary:
CPUC staff reviewed PG&E’s response to staff’s Phase 1 Ex Ante Review (EAR) data request dated February 6, 2015. This project is not approved. CPUC staff found the utility response to be non-responsive.
1. In the Phase 1 EAR data request, CPUC staff indicated that:
“There was nothing in the submitted documents to support the lighting power
density values used in the proposed building model. The submission needs to
include lighting schedules from construction documents as well as
spreadsheets developed to calculate the proposed lighting power densities.”
PG&E’s response was, ”Please refer to the LTG design drawings (plans and
schedules), Title 24 documents and the design team’s energy efficiency report”.
However, these documents were not included in any of files submitted to CPUC for this project.
Project Description:
Whole Building New Construction: Whole building energy evaluation for office building.
Document Summary:
ED Summary of Review Issues: Most of the savings for the project are a result of changing from a packaged VAV system in the Standard case to a variable refrigerant flow heat pump system. A detailed review of the input files from the Standard case model revealed that the HVAC systems in this model did not have economizers or supply air temperature reset control, which are both required by the 2008 Title 24 energy code for this type of system. PG&E Response: Section 144 (3) 1 of The Energy Efficiency Standards is a Prescriptive Criteria, not a Mandatory Measure. Economizers are not “required” by code here.
Project Description:
New Pipeline: New oil pipeline diameter increased from baseline 12" to 16."
Document Summary:
While the requested revisions associated with the Phase I EAR have been provided, we believe significant additional information is needed as a result of the recently completed ISP study on the use of a VFD for the pumping system. While a decision was initially made to separate the increase in the pipe diameter as a measure from the VFD as a measure so as to not delay either, it is now clear to commission staff that the two should be considered together....
Commission staff has performed a show-stopper review and finds that EEM 3 (Photocells and Timers) and EEM 4b (occupancy sensors) are at-code measures proposed as retrofit add-ons. The CPUC policy does not allow installation of at-code measures as explained during the ED-IOU technical collaboration call on September 2, 2014. Staff will be willing to waive this project from further review subject to the removal EEM 3 and EEM 4b. In that case, PG&E should apply a GRR of 0.9 to the post-installation trued up savings estimate of the remaining measures. Please confirm acceptance, or not acceptance, of this proposed disposition.