Best Solar software of 2026: which is right for you?

Designing the layout for rooftop photovoltaic (PV) solar panels is a complicated process that many energy construction contractors need to manage while overseeing material costs and customer requirements.

Not only do contractors need to calculate the exact cost of raw materials required to install the solar panels, inverters, or power optimizers, they often also need to provide detailed return on investment (ROI) reports calculating annual energy savings for both commercial and residential customers.

All these administrative tasks can result in contractors having less time to spend on designing solar panel layouts. Enter solar design tools, which reduce administrative clutter by automating the design process and manage costs and customer requirements in a centralized dashboard.

In this buyers guide, we'll take a look at how solar design software helps automate key processes.

Here's what we'll cover:

What is Solar Software?

Common features of solar software

What type of buyer are you?

Benefits of solar software

Key considerations when purchasing solar software

What is Solar Software?

Solar software (aka solar design software) helps residential and commercial solar construction businesses plan and design layouts for installing PV panels on rooftops or other locations to optimize energy efficiency. These systems also help business manage solar sales proposals by showing customers PV panel design layouts, track material costs for PV system installations, manage energy storage, and generate energy usage reports and estimates.

View of photovoltaic solar system design in HelioScope (Source)

Common features of solar software

Solar software often comes loaded with features, many of which may not be specific to your business needs.

When making your software purchase, focus on the core or common features offered by your shortlisted solutions to ensure you invest in the right tool. Here are the common features you should look for when evaluating solar software:

What type of buyer are you?

Choosing the right solar software depends on the size and requirements of your solar industry business.

Here are three common types of solar software buyers and their unique considerations:

• Small and midsize businesses. In this segment, buyers have a limited software budget, and their primary concern is often tool pricing. As small and midsize energy construction contractors typically offer solar energy solutions to residential units or smaller businesses, they can use cloud-based solar software instead of on-premise tools to stay within their budget.

• Large enterprises. Businesses in this segment require software with advanced functionalities, and often have a larger budget to work with. Larger energy construction contractors cater to a wider audience, often installing solar panels on a bigger scale (e.g., warehouse rooftops, industrial buildings). Cloud-based solar software allows larger construction enterprises to choose from a suite of features such as 2D PV layout design, proposal generation, and sales management.

• Best-of-breed buyers. This segment of buyers has mixed business requirements, similar to those listed above. Since they offer solar energy solutions to residences as well as bigger industrial units, these contractors often need solar software with a complete suite of features.

Benefits of solar software

No matter which of the above three buyer segments you belong in, solar software can help your business. Let's take a look at three key benefits:

• Reduces raw materials waste. By creating the exact layout for each panel's installation, solar software helps business gauge the amount of raw materials required for electrical fittings to avoid waste.

• Aids proposal and sales management. For customers who aren't sure how much they'll save by using solar power, solar software helps business generate proposals to highlight overall ROI post-installation.

• Estimates total energy consumption for prospective systems. Once a PV layout is created, solar software reporting dashboards can estimate overall annual energy savings and assess the cost benefits of solar panel installation.

Key considerations when purchasing solar software

Your final step when purchasing solar software is evaluating these key areas to ensure your business makes the ideal purchase:

• Integration with third-party software. Are you already using imaging software such as AutoCAD to design solar panel layouts in 2D and 3D? Ensure that the solar software you purchase integrates with this and any other design software you use.

• Customer support. Does the solar software vendor offer 24/7 customer support? Are there any training modules or FAQs that can help you troubleshoot encountered issues? Make sure the vendor offers any and all support your business needs before purchasing.

• Mobile application. Determine whether the solar software vendor you're considering offers a mobile app so employees can use the solution while working off-site.

Note: The applications selected in this article are examples to show a feature in context and are not intended as endorsements or recommendations. They have been obtained from sources believed to be reliable at the time of publication.