Carrollton 35 KW DC PVWatts Calculator.pdf
PDF 139 KB Posted
- Solicitation number
- RFP 785 1900000075 2
- Issued by
- Calloway County, Kentucky
About this file
This file is a PVWatts Calculator analysis report from the National Renewable Energy Laboratory (NREL) for a proposed 35 kilowatt direct current (DC) photovoltaic system in Carrollton, Kentucky. The analysis projects the energy output and economic performance of a fixed roof-mount commercial solar installation designed for the specified location. The system specifications include a standard module type with a 12-degree array tilt, 225-degree azimuth orientation, 96% inverter efficiency, and an estimated 14.08% system loss factor. No specific contract response dates, due dates, site visits, bidders' meetings, award dates, or contract terms are identified in this technical analysis document.
The projected annual energy output for the Carrollton system is 41,807 kilowatt-hours per year, with an expected output range of 39,788 to 43,041 kilowatt-hours annually based on 30 years of historical weather data. At an average retail electricity rate of $0.11 per kilowatt-hour, the system generates an estimated annual value of $4,599. Monthly energy production varies between 1,889 kilowatt-hours in December and 4,871 kilowatt-hours in July, with the system operating at a capacity factor of 13.6%. The analysis is based on weather data specific to Carrollton's geographic coordinates (38.69°N, 85.18°W) and includes inherent assumptions and uncertainties typical of PVWatts modeling tools.
View the file
Other files
| File | Type | Posted |
|---|---|---|
| Carrolton Roof Warranty_1.pdf | ||
| Carrollton Electric bill_KU.PDF | ||
| Carrollton Roof Warranty_2.pdf | ||
| A6001 242 B3001 Floor Plan z-242.tif | TIF image | |
| Carrollton Utility Site Plan.jpg | JPG image | |
| Carrollton Roof Warranty_3.pdf | ||
| Addendum No One.pdf | ||
| Request For Proposal.pdf | ||
| Final_RFP_785_1900000075_1_SO_FORM.PDF | ||
| Pre-Proposal Sign In Sheet.pdf | ||
| Final_RFP_785_1900000075_2_SO_FORM.PDF | ||
| A6001 251 B3001 Elec FP z-251.tif | TIF image |
Show all 12
On GovTribe
Work with this file
- Download the original file
- Contacts named in this file
- Similar government files
- Ask GovTribe AI about this file
Text version
5/15/2018 PVWatts Calculator https://pvwatts.nrel.gov/pvwatts.php 1/1
Caution: Photovoltaic system performance predictions calculated by PVWatts® include many inherent assumptions and uncertainties and do not reflect variations between PV technologies nor site-specific characteristics except as represented by PVWatts® inputs. For example, PV modules with better performance are not differentiated within PVWatts® from lesser performing modules. Both NREL and private companies provide more sophisticated PV modeling tools (such as the System Advisor Model at https://sam.nrel.gov) that allow for more precise and complex modeling of PV systems.
The expected range is based on 30 years of actual weather data at the given location and is intended to provide an indication of the variation you might see. For more information, please refer to this NREL report:
The Error Report.
Disclaimer: The PVWatts® Model ("Model") is provided by the National Renewable Energy Laboratory ("NREL"), which is operated by the Alliance for Sustainable Energy, LLC ("Alliance") for the U.S.
Department Of Energy ("DOE") and may be used for any purpose whatsoever.
The names DOE/NREL/ALLIANCE shall not be used in any representation, advertising, publicity or other manner whatsoever to endorse or promote any entity that adopts or uses the Model. DOE/NREL/ALLIANCE shall not provide any support, consulting, training or assistance of any kind with regard to the use of the Model or any updates, revisions or new versions of the Model.
YOU AGREE TO INDEMNIFY
DOE/NREL/ALLIANCE, AND ITS AFFILIATES,
OFFICERS, AGENTS, AND EMPLOYEES
AGAINST ANY CLAIM OR DEMAND,
INCLUDING REASONABLE ATTORNEYS'
FEES, RELATED TO YOUR USE, RELIANCE,
OR ADOPTION OF THE MODEL FOR ANY
PURPOSE WHATSOEVER. THE MODEL IS
PROVIDED BY DOE/NREL/ALLIANCE "AS IS"
AND ANY EXPRESS OR IMPLIED
WARRANTIES, INCLUDING BUT NOT
LIMITED TO THE IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR A
PARTICULAR PURPOSE ARE EXPRESSLY
DISCLAIMED. IN NO EVENT SHALL
DOE/NREL/ALLIANCE BE LIABLE FOR ANY
SPECIAL, INDIRECT OR CONSEQUENTIAL
DAMAGES OR ANY DAMAGES WHATSOEVER,
INCLUDING BUT NOT LIMITED TO CLAIMS
ASSOCIATED WITH THE LOSS OF DATA OR
PROFITS, WHICH MAY RESULT FROM ANY
ACTION IN CONTRACT, NEGLIGENCE OR
OTHER TORTIOUS CLAIM THAT ARISES OUT
OF OR IN CONNECTION WITH THE USE OR
PERFORMANCE OF THE MODEL.
The energy output range is based on analysis of 30 years of historical weather data for nearby , and is intended to provide an indication of the possible interannual variability in generation for a Fixed (open rack) PV system at this location.
41,808 kWh/Year*RESULTS
System output may range from 39,788 to 43,041 kWh per year near this location.
Month Solar Radiation ( kWh / m2 / day )
AC Energy ( kWh )
Value
January 2.32 2,012 221
February 3.25 2,555 281
March 4.07 3,453 380
April 5.16 4,010 441
May 5.88 4,542 500
June 6.49 4,746 522
July 6.44 4,871 536
August 6.03 4,538 499
September 5.23 3,867 425
October 3.86 3,073 338
November 2.79 2,251 248
December 2.16 1,889 208
Annual 4.47 41,807 $ 4,599
Location and Station Identification
Requested Location carrollton, ky
Weather Data Source Lat, Lon: 38.69, -85.18 0.6 mi
Latitude 38.69° N
Longitude 85.18° W
PV System Specifications (Commercial)
DC System Size 35 kW
Module Type Standard
Array Type Fixed (roof mount)
Array Tilt 12°
Array Azimuth 225°
System Losses 14.08%
Inverter Efficiency 96%
DC to AC Size Ratio 1.2
Economics
Average Retail Electricity Rate 0.110 $/kWh
Performance Metrics
Capacity Factor 13.6%
File details come from the government source that posted it. Updated .