Choosing AI for renewable energy: the complete guide (September 2026)

An installer of solar panels, heat pumps or home batteries loses a lot of time before a single screw goes into the roof: measuring the roof, calculating yield, making a quote, following up leads and scheduling fitters. That is exactly the work where AI helps. At the same time, you process addresses, energy consumption and financing details of private individuals, and that is personal data. This guide sets out which tools are in our index, what they cost and what to watch out for in AI for sustainable energy.

Where AI saves you time in this field

Roof design and yield calculation

Drawing roof planes and calculating shade can largely be automated. Novasole Quickr recognises the roof and the objects on it (chimneys, skylights, ventilation units) from just the postcode and house number, creates a panel layout from that, and includes an ISSO-certified yield and shade calculation. Aurora Solar / HelioScope does the same with 3D modelling and LIDAR data. HelioScope focuses on commercial roofs and produces P50 yield forecasts of the kind financiers ask for. OpenSolar offers auto-design and a quote builder on a free cloud platform.

Quotes and customer management in one system

The biggest gain often lies in linking design, quote, planning and invoicing. Two Dutch platforms do this for the entire installation chain. Sollit (formerly 2Solar) combines AI roof scans with lead management, quotes, work orders and maintenance contracts. OpusFlow has a PV Designer, a heat pump calculation, a battery calculator with an ROI calculation over 25 years, and the OpusAI assistant for reporting. The German Reonic does the same and calculates heat pumps according to DIN EN 12831. It also has a WhatsApp assistant for project management. An overview of all quoting tools for this sector is on AI for quotes in sustainable energy.

Smart control after installation

After handover, AI takes over running the installation. Altilia EMS controls home batteries, charging points and heat pumps based on dynamic tariffs and the weather forecast. Altilia sells this through installers. Heartbeat AI from 1KOMMA5° works in the same way and can also be used with existing installations. For non-residential buildings, the Eindhoven-based Integer controls heat pumps, ventilation, panels and batteries using Model Predictive Control.

Large-scale generation, storage and grids

For energy companies and asset managers there is a separate category. Dexter Energy produces price and generation forecasts for solar and wind parks, ACCURE monitors safety and lifespan of large battery systems, Gradyent optimises heat networks with a digital twin, and Evailable detects faults in charging points before they fail.

What to watch out for

Customer data is personal data. Address, consumption profile and financing fall under the GDPR. Only use systems with which you can conclude a data processing agreement, and ask where the data is stored. From our data: Novasole processes data in the Netherlands, Altilia hosts its database in Amsterdam, and OpusFlow and Sollit are Dutch companies with EU hosting. Reonic offers a data processing agreement. Aurora Solar is an American company (SOC 2 Type II), so ask explicitly about EU data processing there. For OpenSolar, it is not publicly disclosed which model sits behind the AI functions.

General chatbots: choose the business variant. If you paste a client file into a free chatbot, that input may be used for training by most providers. The business versions and APIs of ChatGPT and Claude do not train on your data by default. Microsoft 365 Copilot falls under the EU Data Boundary, although the Claude models within Copilot fall outside it. Mistral's Le Chat stores data in the EU by default. DeepSeek stores data in China and is not advisable for client data.

AI calculations are not a final product. Yield forecasts, sizing and subsidy calculations end up in quotes and applications that your client relies on. Always have a qualified installer check the output. Subsidy rules such as ISDE and SDE++ change regularly, so check that the calculation uses the current conditions.

Three starting scenarios

1. Small solar panel installer: from enquiry to quote more quickly.

Start with Novasole Quickr: after a demo you get a freemium account, so you can compare the design against your own survey on a few real addresses. If you want to practise design and quoting for free first, OpenSolar is an option. Check the data processing first, though.

2. Growing installation company with multiple technologies.

If you install solar panels, heat pumps, charging points and batteries, you will probably choose one platform for the entire chain. Compare OpusFlow, Sollit and Reonic on one of your own projects. All three offer a trial period or demo. Pay attention to the integration with your accounting package and to the planning module. You can find more tools at AI for planning in sustainable energy. If you also do conventional installation work, see installation technology as well.

3. Installer who wants to sell aftercare.

Add an energy management system to your offering. Altilia EMS works through a partner network of installers and has an installer portal for remote monitoring. Heartbeat AI also works with existing installations and has a fixed price for the end client.

Common mistakes

• Pasting client files into a free chatbot. Use the business variant with a data processing agreement, or a professional tool with EU hosting.
• Not checking the AI design. Automatic roof recognition is fast, but a roof window that has not been recognised or an incorrect orientation gives a wrong yield in the quote. Check samples, especially on complex roofs.
• Forgetting that subsidy rules change. A calculator with outdated conditions produces a quote you cannot honour.
• Looking only at the licence price. With an ERP platform, onboarding, data conversion and setting up templates also count. OpusFlow itself quotes onboarding from €1,500, for example.
• Mixing up a consumer tool and a professional platform. An EMS for the end client is something different from software for your own operations. Choose per bottleneck.

Cost overview

Start with one bottleneck, usually the quote, and test on a few real projects whose outcome you already know. Only expand once you are sure the tool saves time.

See the full overview of AI tools for sustainable energy, or the related sectors installation technology and building management.