Project

Sun Streams 2 Solar Project 200 MWdc Solar Success

Sun Streams 2 Solar Project is a 200 MWdc utility-scale solar development in Maricopa County, Arizona, associated with Longroad Energy and placed into commercial operation in 2021. This major solar project reflects NPDesign’s focus on practical EBOS solutions, engineering support, and installation-efficient electrical systems built for long-term performance.

Capacity

200 MW

Installed

January 2021

Location

Maricopa County, Arizona

Sun Streams 2 Solar Project 200 MWdc Solar Success

NPDesign’s Work at the Sun Streams 2 Solar Project

Sun Streams 2 Solar Project is a strong example of the kind of utility-scale solar development NPDesign is built to support with practical EBOS solutions, engineering input, and installation-efficient electrical systems. NPDesign focuses on solar IPC trunk bus systems, connector products, and project support services that help reduce field complexity, simplify installation, and support dependable long-term performance on large photovoltaic sites.

That approach fits naturally with the Sun Streams 2 Solar Project in Maricopa County, Arizona, a 200 MWdc utility-scale photovoltaic development associated with Longroad Energy and placed into commercial operation in 2021. Large solar projects like this require repeatable field methods, dependable electrical connections, and a design strategy that supports speed, quality, and long-term system reliability across the full array.

Sun Streams 2 Solar Project Overview

The Sun Streams 2 Solar Project stands out as a major utility-scale solar development in Arizona and a strong reference for the type of work NPDesign supports. Longroad identifies Sun Streams 2 as a 200 MWdc solar project with 150 MWac capacity located predominantly on Arizona state land in Maricopa County. That scale reflects the kind of project environment where organized EBOS planning and dependable connection systems matter most.

Projects at this size depend on practical construction methods, efficient material planning, and connection systems that can be installed consistently across a very large site. That is exactly the kind of environment where NPDesign’s EBOS products and engineering support model deliver value. On a utility-scale array, even small inefficiencies can multiply quickly, which makes streamlined connection systems and field-ready execution especially important.

Why the Sun Streams 2 Solar Project Matters

The Sun Streams 2 Solar Project reflects the scale and coordination required in modern utility-scale solar construction. Longroad says the project has a 20-year revenue agreement with Microsoft to support the renewable energy goals of its West US 3 data center region. For a project of this size, field efficiency is closely tied to schedule performance, labor control, and long-term project quality.

Large renewable energy developments require more than durable hardware alone. They also require a process that supports alignment between engineering, procurement, logistics, and field installation teams. NPDesign’s focus on practical solar EBOS solutions fits directly into that need, especially on projects where organized delivery, repeatable connections, and installation efficiency all contribute to better execution.

NPDesign’s Role in Utility-Scale Solar Projects Like the Sun Streams 2 Solar Project

NPDesign emphasizes a practical, field-ready approach to utility-scale solar. Its IPC trunk bus connectors are designed to reduce field complexity by eliminating wire stripping at the tap point, supporting faster installation, and helping crews create repeatable connections across the array. That kind of system is especially valuable on large photovoltaic projects where labor, speed, and consistency directly affect project outcomes.

Beyond connector products, NPDesign also supports projects through engineering review, IPC sizing, layout planning, harness tap configuration, and project-specific kitting. This means the company’s value extends beyond supplying components alone. It also includes helping project teams apply the right connection strategy for the site, the array layout, and the installation schedule.

Efficiency at Scale at the Sun Streams 2 Solar Project

On utility-scale solar projects, efficiency plays a major role in labor management, scheduling, and cost control. A field process that saves time in one area becomes much more valuable when repeated across an entire project. NPDesign’s focus on simplified installation, organized material delivery, and reduced connection counts aligns well with the needs of large developments where crews must work efficiently without sacrificing build quality.

The Sun Streams 2 Solar Project is a strong example of a site where disciplined planning supports large-scale output. Longroad notes that the project is part of a broader Arizona solar and storage complex and that it delivers power under a long-term commercial arrangement. That kind of infrastructure depends on dependable field execution and durable electrical systems from the earliest planning stages through commissioning.

Built for Long-Term Performance

Utility-scale solar projects are expected to operate reliably for decades, so durable electrical infrastructure is a major part of long-term project value. That makes dependable components, environmental durability, and thoughtful installation planning essential across the site. Reliable connector systems and well-organized EBOS design contribute to both installation success and long-term operational confidence.

That long-term perspective matches NPDesign’s broader product philosophy. Efficient layouts, installation-minded engineering, and dependable connection systems all support better performance over time. The Sun Streams 2 Solar Project represents more than installed capacity alone. It also reflects the need for durable EBOS infrastructure and systems that can support long-term solar asset performance.

From Planning to Energization

NPDesign supports utility-scale solar projects with a process that begins early and carries through installation. From site plan review and connector selection to kitted delivery and project support, the company is positioned to help teams move through the full EBOS process in a more organized and efficient way. That broader support model is one of the reasons its project experience is relevant to major developments like the Sun Streams 2 Solar Project.

To learn more about NPDesign’s solar experience and the company’s approach to field-ready EBOS planning, explore the background of the team and its project support model. You can also view our product solutions for utility-scale solar applications.

The Sun Streams 2 Solar Project remains a strong example of modern utility-scale solar development and the level of planning, coordination, and field execution required to support major renewable energy infrastructure successfully.

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Common Questions

Frequently asked questions featured across the site.

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How does an IPC trunk bus system replace combiner boxes?

Instead of routing individual string cables to a central combiner box, IPCs connect strings directly to a trunk bus cable that runs along the array. This eliminates combiner box hardware, reduces underground conduit runs, lowers voltage drop, and cuts total connection points dramatically — resulting in less labor, less material, and fewer potential failure points.

Why UL 9703 instead of UL 486?

UL 9703 was developed specifically for wiring harnesses in distributed generation systems. It requires more aggressive testing — including freeze cycles, thermal chamber, wet high-pot, and impact tests — than UL 486, which covers a broader range of general-purpose connectors. It’s the highest standard available for solar EBOS connections.

What sizes do your IPCs support?

Our IPC product line covers trunk bus sizes from 1/0 AWG through 1000 KcMil, with tap cable support from #10 AWG up. Available in dual-tap and multi-tap configurations to match your array string count and inverter layout.

What is an insulation piercing connector?

An IPC connects string-level DC wiring to a trunk bus cable by piercing through the cable insulation with tinned copper teeth. This eliminates wire stripping in the field, reduces connection time, and creates a sealed, weather-resistant joint. The result is fewer failure points and faster array commissioning.

What does NPDesign do?

NPDesign engineers and delivers EBOS infrastructure for utility-scale solar projects, with a strong focus on Solar IPC trunk bus systems, connectors, engineering support, and project-specific kitting and logistics.

What is an IPC connector?

An IPC connector is an insulation piercing connector designed to create a field-installed electrical tap connection without requiring wire stripping at the tap point. NPDesign presents IPC connectors as a faster and more efficient solution for solar trunk bus systems.

Do NPDesign IPC connectors require wire stripping?

No. NPDesign IPC connectors are designed to make the connection without stripping the cable insulation first. This helps speed up installation, reduce extra cable prep in the field, and create a more consistent connection process across large solar projects.

How fast do the IPC connectors install?

NPDesign IPC connectors are designed to install in under two minutes per tap. That faster install time helps crews move more efficiently across the array while keeping the process simple and repeatable.

What cable sizes do NPDesign IPC connectors support?

The IPC product line covers trunk bus sizes from 1/0 AWG through 1000 KcMil, with tap cable support starting at #10 AWG depending on the model. This gives project teams options across a wide range of utility-scale solar layouts.

Why use an IPC trunk bus system in solar?

An IPC trunk bus system can reduce connection points, simplify array wiring, and lower field labor compared with more traditional DC wiring layouts. It also helps create a cleaner, more standardized installation process across large solar projects.

How does an IPC trunk bus system replace combiner boxes?

Instead of routing individual string cables back to a central combiner box, IPCs connect strings directly to a trunk bus cable along the array. This can reduce hardware, lower conduit needs, cut total connection points, and help reduce both labor and material costs.

Does NPDesign provide engineering support or only products?

NPDesign provides both products and engineering support. That includes site plan review, single-line review, IPC sizing, array layout support, field guidance, and other services that help customers apply the right EBOS solution to the project.

Does NPDesign offer project-specific kitting?

Yes. NPDesign can kit connectors, trunk cable, harnesses, and accessories by site zone and construction schedule. This helps crews receive materials in a more organized way for the work being done on site.

Why is UL 9703 important?

UL 9703 is a photovoltaic connector standard that supports safety, inspection confidence, and project compliance. Using listed components can also help give developers, EPCs, and contractors more confidence in the connection system being installed.

Why UL 9703 instead of UL 486?

UL 9703 is tailored specifically to photovoltaic and distributed generation wiring applications, with more aggressive testing for solar use conditions. That makes it a stronger fit for solar EBOS connections than a broader general-purpose connector standard.

How does it work to start a project with NPDesign?

The process starts with sharing the site plan and single-line diagram. From there, NPDesign reviews the EBOS requirements, develops the connector and trunk bus approach, and helps move the project toward kitting, delivery, installation, and energization.

How can I contact NPDesign?

Customers can reach out through the contact and quote request options on the site, and NPDesign also lists in**@*********lc.com as a direct contact email.

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