HomeMy WebLinkAbout1.14 Application Part15##
Client:
Project:
Site:
Project No.:
Holy Cross Solar
Peace Bear Ranch
R-Value Test
HDR Engineering
Davis B5 @ 0-5'
25205263 (A)
Specimen Identification Compaction
Pressure (psi)R-Value at 300 psi
250.0 41
0
10
20
30
40
50
60
70
80
90
100
0100200300400500600700800R-ValueExudation Pressure, psi
201218052TASK NO:
Analytical Results
Terr acon, Inc. - W heat Ridge
John Taylor
Company:
Report To:
Company:
Bill To:
10625 W . I-70 Frontage Road
Wheat Ridge CO 80033
Accounts Payable
Terracon,Inc.-Accounts Payable
18001 W.106th St
Suite 300
Olathe KS 66061
25205263 Date Reported:12/28/20
Task No.:201218052
Matrix:Soil - Geotech
Date Received:12/18/20
Client Project:
Client PO:
2 at 0-5 ACustomer Sample ID
Test Method
201218052-01Lab Number:
Result
Chloride - Water Soluble AASHTO T291-91/ ASTM D43270.0040 %
pH AASHTO T289-918.0 units
Redox Potential ASTM D1498428.6 mv
Resistivity AASHTO T288-911598 ohm.cm
Sulfate - Water Soluble AASHTO T290-91/ ASTM D43270.008 %
8 at 0-5 ACustomer Sample ID
Test Method
201218052-02Lab Number:
Result
Chloride - Water Soluble AASHTO T291-91/ ASTM D43270.0008 %
pH AASHTO T289-917.8 units
Redox Potential ASTM D1498388.7 mv
Resistivity AASHTO T288-912450 ohm.cm
Sulfate - Water Soluble AASHTO T290-91/ ASTM D43270.003 %
2 at 0-5 BCustomer Sample ID
Test Method
201218052-03Lab Number:
Result
Chloride - Water Soluble AASHTO T291-91/ ASTM D43270.0004 %
pH AASHTO T289-917.7 units
Redox Potential ASTM D1498391.3 mv
Resistivity AASHTO T288-911744 ohm.cm
Sulfate - Water Soluble AASHTO T290-91/ ASTM D43270.003 %
10411 Heinz Way / Commerce City, CO 80640 / 303-659-2313
Mailing Address: P.O. Box 507 / Brighton, CO 80601-0507
DATA APPROVED FOR RELEASE BY
Abbreviations/ References:
201218052
AASHTO - American Association of State Highway and Transportation Officials.
ASTM - American Society for Testing and Materials.
ASA - American Society of Agronomy.
DIPRA - Ductile Iron Pipe Research Association Handbook of Ductile Iron Pipe.
Surcharge
(ksf)
Swell
(%)
Maximum
Dry
Density
(pcf)
Optimum
Water
Content
(%)
Test
Method
Effort
(%)Wet Dry 3/4"#4 #10 #40 #200 LL PI
1 0 - 5 CL 100 100 100 99 85 32 15
1 2 9.0 109 4
1 4 12.8 113 0.5 +3.4 3,4
1 19 6.7 136 4
2 0 - 5 CL 100 100 100 95 72 39 17 0.008 0.0040 8.0 428.6 1598
2 2 9.3 104 4
2 4 7.1 111 4
2 14 4.0 114 4
3 0 - 5 CL 100 99 96 86 53 25 8
3 2 8.7 104 4
3 4 3.6 4
3 19 5.2 110 4
4 0 - 5 CL 100 100 100 99 89 33 16
4 2 7.0 114 4
4 4 4.8 117 4
4 9 4.4 118 4
5 0 - 5 CL-ML 41 100 100 100 99 74 27 7
5 2 4.2 121 4
5 4 7.8 125 0.5 +9.7 3,4
6 0 - 5 CL 107.4 17.3 D698A 100 100 99 97 86 35 19 5,6
6 2 CL 8.5 105 4
6 4 CL 7.6 125 4
6 9 4.5 133 0.5 +12.8 3,4
7 0 - 5 CL 100 100 100 99 79 27 12
7 2 6.8 114 4
7 4 6.3 102 4
7 14 3.6 123 4
8 0 - 5 CL 100 100 99 95 61 27 10 0.003 0.0008 7.8 388.7 2450
8 4 CL 6.0 121 4
8 9 6.9 125 4
8 14 9.7 126 4
9 0 - 5 CL 12 97 121.3 12.2 D1557B 80 75 158 100 92 87 81 53 35 18 7
9 0 - 5 CL 12 109 121.3 12.2 D1557B 90 67 132 100 92 87 81 53 35 18 7
9 2 CL 10.0 107 4
9 9 6.8 115 4
9 14 9.6 129 4
10 0 - 5 CL 100 100 100 98 87 31 11
10 2 CL 7.0 114 4
10 4 CL 8.0 108 0.5 +0.2 3,4
10 9 6.7 123 4
Water
Soluble
Chlorides
(%)
R-Value
Thermal Resistivity (°C-
cm/W)
pH Redox Resistivity
Particle Size Distribution, Percent Passing by Weight
SUMMARY OF LABORATORY TEST RESULTS
Holy Cross Solar Project - Peace Bear Ranch Site - Silt, Colorado
Terracon Project No. 25205263A
Boring
No.Depth (ft)USCS
Class.
Initial
Water
Content
(%)
Atterberg Limits
Initial Dry
Density
(pcf)
Remarks
Water
Soluble
Sulfates
(%)
Swell/Consolidation Moisture-Density Relationship
Page 1 of 1
FIELD ELECTRICAL RESISTIVITY TEST DATA
Garfield County Solar - Peace Bear Ranch Site ■ Silt, Colorado
December 15, 2020 ■ Terracon Project No. 25205263A
Array Loc.
Instrument Weather
Serial # Ground Cond.
Cal. Check Tested By
Test Date Method
Notes &
Conflicts
Apparent resistivity ρ is calculated as :
Measured
Resistance R
Apparent
Resistivity ρ
Measured
Resistance R
Apparent
Resistivity ρ
Ω (Ω-cm)Ω (Ω-cm)
1 30 6 15 142.80 35420 137.90 34210
2 61 6 15 50.20 21100 33.10 13910
5 152 6 15 9.211 8940 9.819 9530
10 305 6 15 3.721 7160 3.498 6730
20 610 12 30 1.312 5050 1.106 4260
50 1524 12 30 0.397 3800 0.409 3920
80 2438 12 30 0.275 4210 0.303 4640
N-S Test E-W Test
ER-1: Approximate Center of Array (39.50959, -107.66384)
Mini-Res
N/A
N/A
December 15, 2020
24 F, Sunny
grass, brush
Kyle T. Johnson
Wenner 4-pin (ASTM G57-06 (2012); IEEE 81-2012)
(feet)(centimeters)(inches)(centimeters)
Electrode Spacing a Electrode Depth b
1.0
10.0
100.0
1,000.0
10,000.0
100,000.0
1 10 100 1000 10000Apparent Resistivity R(Ω-cm)Electrode Spacing a (cm)
Apparent resistivity vs a spacing
N-S Array
E-W Array
𝜋=4𝜋𝑎𝑅
1 +2𝑎
𝑎2 +4𝑎2 −𝑎
𝑎2 +𝑎2
AES Peace Bear Ranch Solar – Land Use Change – Major Impact permit application (11/5/2021)
AES Peace Bear Ranch Solar – Garfield County 58
Please see the following pages for the AES’ planned Operations and Maintenance Schedule for AES
Peace Bear Ranch Solar, LLC.
OPERATIONS AND MAINTENANCE SCHEDULE
Appendix C12
SCHEDULE 1
SCHEDULE 1
1. System-Wide Maintenance
System-wide maintenance includes but is not limited to the following:
Item Service Description Frequency
1 Complete and submit Maintenance Reports. As Needed
SCHEDULE 1
2 Inspect the mechanical functionality of the Project – including but not limited to
randomly inspecting a reasonable quantity of the fastening/mounting elements,
equipment connection and coupling cases, visual inspection of overhead poles
and lines, verifying that the threaded connections are tight, visual inspection of
all parts of the equipment and checking the cabling. Quantity inspected shall be
not less than 10% and is acknowledged as sufficient to make informed
recommendation if follow-up or additional remediation is required.
1x per year
3 Inspect all electrical boxes, combiner boxes and electrical equipment for water
damage or signs of significant water accumulation in underground conduit.
1x per year
4 Scan combiner boxes with Infrared camera to identify loose of broken connections. 1x per year
5 Visually Inspect the medium-voltage components and conduct grounding
measurements and verification.
1x per year
6 Visually inspect each AMPT DC/DC String Optimizer 1x per year
7 Inspect accessible cabling for signs of cracks, defects, pulling out of connections,
overheating, arcing, short or open circuits, and ground faults.
1x per year
8 Check for abnormal corrosion on parts of the Project and perform minor service on
any parts with the potential for corrosion to remove long-term risks.
1x per year
9 Check the mechanical functionality of the built-in components and interrupters
(ground fault circuit interrupters and circuit breakers).
1x per year
10 Check the functionality of the meters. For avoidance of doubt, functionality of the
meters means that meters are operating, communicating reliably and measuring
coherent values as compared to the backup meters.
1x per year
11 Maintain pyranometers on a regular basis according to the manufacturer's
recommendations, including but not limited to: calibration, cleaning, checking
electrical connections and mechanical supports, verifying installation tilt and
azimuth, checking desiccant and filters.
As Needed
12 Maintenance of the structure that will support the Panels shall be by various means
including visual inspection, searching for impacts, corrosion and condition of the
protective paint, and absence of water deposits.
1x per year
13 Thermal camera testing of electrical current connections and circuit breakers. 1x per year
SCHEDULE 1
14 Carryout maintenance of Project transformer(s) in accordance with manufacturer’s
recommendation.
As Needed
2. Panel Maintenance
Ongoing panel maintenance includes but is not limited to the following operations:
Item Service Description Frequency
1 Check for possible glass breakage, normally caused by external actions, and
rarely by thermal fatigue arising from assembly errors.
1x per year
2 Visually check for oxidation in the circuits and welding of the photovoltaic cells,
normally due to the entrance of dampness into the panel because of a fault or breakage of the sealing layers.
1x per year
3 Check for change of color to yellow or brown (known as yellowing and browning)
of the sealant or encapsulant.
1x per year
4 Check for issues with the panel backsheet, as inflammations in this area could be a
symptom of a hot point in the module.
1x per year
5 Check for deformations in the junction boxes of the module due to overheating of
the bypass diodes and/or high contact resistance because of bad tightness of an
electrical terminal.
1x per year
6 Check the tightness and condition on not less than 10% of the module series
connections.
1x per year
7 Where feasible, visually check the watertight integrity of the terminal boxes or the
condition of the protective hoods of the terminals, depending on the type of Panel.
1x per year
8 In the event that faults are detected in the watertight integrity, either 1) make minor
repairs that do not compromise the panel warranty or 2) process a panel warranty
claim.
1x per year
9 Undertake comparative measurement of string DC currents and/or conduct aerial
thermal imaging of the solar array.
1x per year
SCHEDULE 1
3. Inverter Maintenance
Ongoing inverter maintenance includes but is not limited to the following:
Item Service Description Frequency
1 Annual maintenance performed by O&M Contractor as required to meet the
manufacturer’s warranty requirements. O&M Contractor will provide a detailed
report of findings.
As required
2 General visual observation of the condition and functioning of the inverter. 1x per year
3 Check wiring and the connection tightness of the parts. 1x per year
4 Verify that the site of the inverter is clean, dry and well ventilated and insulated. 1x per year
5 Check that the inverter works properly and that unusual noises are not coming from
inside it.
1x per year
6 Check that where the inverter is placed maintains suitable temperatures so that this
equipment can always work within the temperature range specified by the inverter
manufacturer such that it does not derate.
1x per year
7 Check the equipment protection and alarms. 1x per year
8 Inspect air filters annually. Replace or clean as necessary. 1x per year
4. Component Testing
Component tests required include:
Item Service Description Frequency
1 Test all DC source circuits and input circuits, VOC and ISC 1x per year
2 Test all OCPDs and disconnects 1x per year
3 Test equipment grounding/continuity 1x per year
4 Verify accuracy of all meters, sensors, monitoring devices, communications equipment, weather station.
1x per year
5. Ground-Mount Project Maintenance
Ongoing general Project maintenance includes but is not limited to the following:
Item Service Description Frequency
1 Visual inspection of the general Project conditions, vegetation, animal damage,
and erosion.
As needed when
at Project
SCHEDULE 1
2 Maintain weeds, grasses and ground cover to prevent shading and risk of fire. This
includes: mowing, and reseeding grass when necessary to mitigate erosion.
2x per year,
plus as
needed
following a
quoted price
3 Monitor trees and larger vegetation to prevent shading. If shading is present or
imminent, O&M Contractor will assist Owner in identifying a third-party service to
conduct the needed trimming. O&M Contractor will provide direction to that third
As needed
4 Remove all rubbish, excessive vegetation, animal nests, dead animals, and other
obstructions from underneath array, electrical equipment servicing zones and other
key access areas.
As needed
6. Racking Maintenance
Ongoing tracking and non-tracking racking maintenance includes but is not limited to the following:
Item Service Description Frequency
1 Visually inspect all racking hardware and components for abnormal wear or
excessive corrosion.
1x per year
2 Verify torque of bolted connections at the racking and/or tracking systems. At least 1x per
year
3 Inspect all ground mounts, visually inspect structural footings and check for
abnormal wear and physical damage from vehicles.
1x per year
7. Cleaning Requirements
Ongoing cleaning requirements include but is not limited to the following:
Item Service Description Frequency
1 Clean PV modules with pressurized plain water. Do not use brushes, any types of
solvents, abrasives, or harsh detergents. The timing of cleanings are at the
discretion of the O&M Contractor but preferably before summer, and after a period
of no rainfall or when there is an event that affects the production of the Project.
As Requested
for Additional
Fee
2 Clean weather station as necessary to provide accurate data readings. As Needed
8. Battery Plant
SCHEDULE 1
For all equipment in the Battery Plant, inclusive containers and support systems, complete the full
visual/mechanical/electrical inspections and tests as recommended by ANSI/NETA and the OEM owner manuals per
the respective intervals.
SCHEDULE 1
Item Service Description Frequency
1 Battery Plant – 10MW/20MWh, Samsung batteries, integrated via DC/DC converters behind four (4) 2.8MW Inverter Skid (derated to 2.5MW). Per Above
2 Battery Energy Storage Systems – One (1) system, comprised of (8) CEN container containing Samsung batteries and associated Auxiliary Power, HVAC and Fore
Suppression systems.
Per Above
3 DC/DC Converter Modules – eight (8) units serving the BESS Per Above
4 All associated Disconnect Switches and BESS Recombiners Per Above
5 Inspect all fire extinguishers in accordance with regulations; monthly, annually, As Applicable
Operator Rates for Non-Covered Services
All expenses for Non-Covered Services, including labor, materials and equipment related thereto, will be billed to
Owner at Operator’s cost on a time and materials, cost plus 10% basis at Operator’s reasonable, documented rates. Such
services include, but are not limited to, additional panel washings and additional vegetation management beyond the frequencies
or intervals listed in the Maintenance Services Scope.
Should the Customer, the utility or the transmission provider require reporting and operating services materially
different in scope than those required in any operating agreements for the System as of the effective date of this agreement,
these additional services will also be billed at Operator’s reasonable and documented rates.
Operator Rates
Field Technician $75/hr Supervisor/Manager
$100/hr
Overtime 150% Standard Billing Rate Holiday Time 200%
Standard Billing Rate Travel Time 50% Standard Billing Rate Parts &
Materials Cost plus 10%
3rd Party Services Cost plus 10%
Vegetation Management services will be provided according to negotiated and approved fee. Module Washing services will
be provided according to negotiated and approved fee.