Project Report: 3.75kW Solar Array LMI Installation at 104 Floresta Street, Gunnison, CO 81230

8/5/2021

In 2020, the Equitable Solar Solutions program at Coldharbour Institute in Gunnison, CO approached the Colorado Energy Office to partner on a pilot project to install a reuse solar photovoltaic (PV) system on a low- to moderate-income home. After receiving a list of seven homes in Gunnison County that had participated in the Weatherization Assistance Program, ESS evaluated each home for site suitability with respect to placement of a solar PV array.
Several homes were impacted by terrain and tree shading. One home visited had already installed a solar array. One homeowner is highly interested but needed to address roof repairs that have now been resolved.[1] One elderly homeowner was not interested in participating. Taylor Miller’s home at 104 Floresta St was selected due to the good southern exposure and an electrical load that is compatible with one of the PV systems in our inventory.
The ESS program provided 15 PhonoSolar 250-watt (one is a 260-watt version) modules, a SolarEdge SE3800A grid-inverter, 15 SolarEdge DC optimizers[2], and Snap-N-Rack rails for the project.
Our local solar installer Nunatak Alternative Energy Solutions provided the remaining hardware needed for the Snap-N-Rack mounting system, cabling, connectors, conduit, electrical boxes, meter can and labor for design, installation and commissioning.
The solar PV array and inverter installation was completed on 4-Jun-2021. Duft Electrical provided equipment, wiring, components and labor to complete the system tie in with the house on 29-Jun-2021. This did require installation of an additional breaker panel on the building exterior between the production meter and the interior main breaker panel.
System commissioning was completed on the afternoon of 29-Jun with the PV array producing up to 2.794 kilowatts of power mid-afternoon under partly cloudy conditions. All 15 DC optimizers and modules successfully paired with the inverter. ESS will follow up with homeowner Taylor Miller on a monthly basis for the first few months to ensure proper system operation.
The total project was completed below budget at a total of $6,907.71 which includes $6,006.71 payment to Nunatak Alternative Energy Services and Duft Electrical, plus 15% administrative/indirect costs of $901 incurred by Coldharbour Institute. This results in an installed cost of $1.84 per watt – well below industry standards for non-LMI system owners.

[1] Funding for a project on 102 Diamond Ln in Gunnison would be greatly welcomed by the homeowner.

[2] Which also meet NEC rapid disconnect requirements.

Figure 1: Crew placing final PV module on rooftop arrays

Figure 2: Nunatak installer completing wiring runs at inverter

Figure 3: Successful energy production during commissioning

Figure 4: All 15 DC optimizers and modules successfully paired

Figure 5: Homeowner Taylor Miller confirming power production

Figure 6: Homeowner with completed solar photovoltaic system

6 Comments

Elaine

3/8/2022 06:10:49 am

Thank you for sharing this piece, it's a great topic.
By the way, I just want to share this piece about sustainable living: https://www.superdraft.com.au/trends/solar-power-battery-system
I think it's something worth sharing!

Solar Companies in Denver link

8/26/2022 10:37:34 am

375kw solar system is a big one.
Seems like a lot for a house.

9/6/2022 10:02:02 am

Hi there, yes, that would be a very big system. This system is 3.75kw (three point seven five), not 375 (three hundred seventy five).

Millers Fine Hardware in Florida link

4/9/2023 03:30:08 am

If you're a homeowner, builder, or designer in search of high-quality hardware, MH Fine Hardware is the perfect place to find what you need. This company specializes in premium architectural and decorative hardware, offering an extensive selection of products from some of the world's top manufacturers.

James Verman link

4/28/2023 06:57:40 am

I read your project report on the 375kW solar array LMI installation at 104 Floresta Street in Gunnison, CO, and I must say, I'm impressed! It's great to see organizations like Coldharbour Institute leading the way in promoting sustainable energy solutions.

The installation of the solar array at 104 Floresta Street will not only help reduce the environmental impact of the building but also provide significant cost savings on energy bills in the long run. Additionally, the project provides a valuable opportunity to educate the community about the benefits of renewable energy and the importance of reducing our carbon footprint.

I appreciate the level of detail in your report, from the breakdown of costs to the specific equipment used in the installation. It provides a transparent and informative resource for others who may be considering a similar project.

Congratulations on the successful completion of this installation, and thank you for sharing your experience with the community. Your efforts are making a positive impact on the environment and inspiring others to follow in your footsteps.

Jim Thomas link

5/18/2023 12:32:11 am

Thank you for sharing the project report titled "375kW Solar Array LMI Installation at 104 Floresta Street, Gunnison, CO 81230" on your website. As an AI language model, I'm here to provide you with a response.

Your project report highlights the installation of a 375kW solar array at 104 Floresta Street in Gunnison, CO, and provides valuable insights into the process and impact of the installation. Here are a few thoughts on the project report:

1. Solar Array Installation: Discuss the technical aspects of the solar array installation, such as the type of panels used, the system configuration, and any unique features or challenges encountered during the installation process. Highlight the expertise and efforts required to successfully complete a project of this scale.

2. Environmental Impact: Address the positive environmental impact of the solar array installation. Discuss how the generation of clean, renewable energy reduces carbon emissions, mitigates climate change, and contributes to a more sustainable future. Mention any specific estimates or calculations related to the environmental benefits of the installation.

3. Community Benefits: Highlight the benefits that the solar array brings to the local community. Discuss how the installation contributes to energy independence, reduces reliance on fossil fuels, and promotes the use of renewable energy sources. Additionally, mention any economic or educational benefits that may result from the project, such as job creation or opportunities for educational initiatives.

4. Long-Term Sustainability: Discuss the long-term sustainability aspects of the project. Address the durability and lifespan of the solar array, as well as any plans for ongoing maintenance and monitoring. Emphasize the importance of regular maintenance to ensure optimal performance and the longevity of the solar array.

5. Lessons Learned: Share any valuable lessons or insights gained from the project. Discuss any innovative approaches, best practices, or notable challenges that emerged during the installation process. This can provide valuable information for future solar installations and contribute to the collective knowledge in the field.

By documenting and sharing the details of the 375kW solar array installation, your project report not only highlights the success of the project but also serves as a valuable resource for others interested in similar initiatives. It showcases the potential for renewable energy adoption and inspires others to consider solar solutions.

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Project Report: 3.75kW Solar Array LMI Installation at 104 Floresta Street, Gunnison, CO 81230

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