All 12 alternatives
Tools that do the same job come first, followed by the rest of renewable energy & energy transition. For each tool it shows how it differs from OpenSolar.
#ToolRuns onPriceGDPR
1
OpusFlowOpus4All B.V. · Netherlands · free trialDutch ERP platform for installers of solar panels, heat pumps, charging points and batteries. Combines CRM, design (PV Designer), scheduling, warehousing and invoicing in one system. More than 3,000 users; €3.8 million growth funding (2024).from €99/user/month (annual cont…Strong2
ReonicReonic GmbH · EU · free trialGerman AI platform for installers of solar panels, heat pumps and charging points. Combines 3D roof planning, technical sizing, quotes and CRM in one interface. Over 3,000 customers in 13 countries; €13 million Series A (2024).on 
on requestStrong3
SollitSollit B.V. · NetherlandsDutch all-in-one platform for installers of solar panels, heat pumps, charging points and batteries. Sollit (formerly 2Solar, founded in 2013) covers the full workflow from lead to invoicing and is used by more than 1,000 companies across Europe.on requestLimited4
Aurora Solar / HelioScopeAurora Solar Inc. · Outside EU · free trialGlobally leading cloud platforms for solar energy design. Aurora Solar offers AI-driven roof scanning and a financial proposal for residential installations; HelioScope (also by Aurora) focuses on commercial and industrial systems with accurate yield modelling (LIDAR, P50). Used in over 100 countries.on requestUnknown5
Siemens Building XSiemens Smart Infrastructure · EU · free trialModular cloud suite for building management that brings data from installations, meters and sensors together in a single data lake. AI controls climate systems and performs real-time analysis and forecasting; Occupancy Manager proposes Eco and Comfort schedules itself based on expected occupancy. Open APIs and vendor-independent integrations, so it can also be used on top of non-Siemens hardware.modular subscription per applicationStrong6
ACCURE Battery IntelligenceACCURE Battery Intelligence GmbH · EUGerman predictive analytics platform for large-scale battery energy storage (BESS) that combines AI with physical models to optimise the safety, performance and lifespan of battery systems. Supports 24+ GWh across 100+ installations worldwide. Received a Series B investment of 2025 million in February 6.on requestGood7
GradyentGradyent B.V. · NetherlandsRotterdam-based AI platform that optimises heat and cooling networks through a real-time digital twin. It integrates geographic data, weather data and sensor data with physical models and AI to give operators insight into network conditions, predict faults and reduce CO₂ emissions. Clients are large European heat network operators.on request (B2B enterprise, heat…Good8
Altilia EMSAltilia · NetherlandsDutch AI energy management system (EMS) that automatically controls home batteries, solar panels, charging points and heat pumps based on dynamic energy tariffs and weather forecasts. Partner network of 300+ installers and 9 wholesalers in the Netherlands.via installer (B2B channel)Limited9
Dexter EnergyDexter Energy Services B.V. · NetherlandsAmsterdam-based AI platform for price and generation forecasts and trading optimisation for energy producers with solar farms, wind farms and batteries. It reduces imbalance costs by up to 35% and raises market revenues by up to 30%. Over 80 energy companies are clients, including Greenchoice, Centrica and Axpo.on request (B2BLimited10
EvailableEvailable GmbH · EUGerman AI platform for managing and maintaining EV charging infrastructure that analyses usage patterns per charging point to detect faults early and resolve them remotely. It manages around 30,000 charging points in Europe and promises to resolve issues 10x faster than traditional approaches. Compatible with almost all charger types.on requestLimited11
Heartbeat AI (1KOMMA5°)1KOMMA5° · EU · free trialAI energy automation layer from 1KOMMA5° that connects solar panels, a home battery, a heat pump and a charging point and automatically saves on energy costs. It buys electricity during cheap hours on the energy exchange; compatible with existing installations. One-off hardware plus a monthly subscription.hardware €599 one-off + €14.99/m…Limited12
Integer PlatformInteger Technologies B.V. · NetherlandsPlug-and-play control for energy installations in small and medium-sized commercial buildings. The platform reads out the installation, automatically builds a model of the building, and controls heat pumps, ventilation, solar panels and batteries from the cloud to save energy and prevent grid congestion.on requestLimited
OpusFlowOpus4All B.V. · Netherlands · free trialDutch ERP platform for installers of solar panels, heat pumps, charging points and batteries. Combines CRM, design (PV Designer), scheduling, warehousing and invoicing in one system. More than 3,000 users; €3.8 million growth funding (2024).from €99/user/month (annual cont…Strong2ReonicReonic GmbH · EU · free trialGerman AI platform for installers of solar panels, heat pumps and charging points. Combines 3D roof planning, technical sizing, quotes and CRM in one interface. Over 3,000 customers in 13 countries; €13 million Series A (2024).on on requestStrong3SollitSollit B.V. · NetherlandsDutch all-in-one platform for installers of solar panels, heat pumps, charging points and batteries. Sollit (formerly 2Solar, founded in 2013) covers the full workflow from lead to invoicing and is used by more than 1,000 companies across Europe.on requestLimited4Aurora Solar / HelioScopeAurora Solar Inc. · Outside EU · free trialGlobally leading cloud platforms for solar energy design. Aurora Solar offers AI-driven roof scanning and a financial proposal for residential installations; HelioScope (also by Aurora) focuses on commercial and industrial systems with accurate yield modelling (LIDAR, P50). Used in over 100 countries.on requestUnknown5Siemens Building XSiemens Smart Infrastructure · EU · free trialModular cloud suite for building management that brings data from installations, meters and sensors together in a single data lake. AI controls climate systems and performs real-time analysis and forecasting; Occupancy Manager proposes Eco and Comfort schedules itself based on expected occupancy. Open APIs and vendor-independent integrations, so it can also be used on top of non-Siemens hardware.modular subscription per applicationStrong6ACCURE Battery IntelligenceACCURE Battery Intelligence GmbH · EUGerman predictive analytics platform for large-scale battery energy storage (BESS) that combines AI with physical models to optimise the safety, performance and lifespan of battery systems. Supports 24+ GWh across 100+ installations worldwide. Received a Series B investment of 2025 million in February 6.on requestGood7GradyentGradyent B.V. · NetherlandsRotterdam-based AI platform that optimises heat and cooling networks through a real-time digital twin. It integrates geographic data, weather data and sensor data with physical models and AI to give operators insight into network conditions, predict faults and reduce CO₂ emissions. Clients are large European heat network operators.on request (B2B enterprise, heat…Good8Altilia EMSAltilia · NetherlandsDutch AI energy management system (EMS) that automatically controls home batteries, solar panels, charging points and heat pumps based on dynamic energy tariffs and weather forecasts. Partner network of 300+ installers and 9 wholesalers in the Netherlands.via installer (B2B channel)Limited9Dexter EnergyDexter Energy Services B.V. · NetherlandsAmsterdam-based AI platform for price and generation forecasts and trading optimisation for energy producers with solar farms, wind farms and batteries. It reduces imbalance costs by up to 35% and raises market revenues by up to 30%. Over 80 energy companies are clients, including Greenchoice, Centrica and Axpo.on request (B2BLimited10EvailableEvailable GmbH · EUGerman AI platform for managing and maintaining EV charging infrastructure that analyses usage patterns per charging point to detect faults early and resolve them remotely. It manages around 30,000 charging points in Europe and promises to resolve issues 10x faster than traditional approaches. Compatible with almost all charger types.on requestLimited11Heartbeat AI (1KOMMA5°)1KOMMA5° · EU · free trialAI energy automation layer from 1KOMMA5° that connects solar panels, a home battery, a heat pump and a charging point and automatically saves on energy costs. It buys electricity during cheap hours on the energy exchange; compatible with existing installations. One-off hardware plus a monthly subscription.hardware €599 one-off + €14.99/m…Limited12Integer PlatformInteger Technologies B.V. · NetherlandsPlug-and-play control for energy installations in small and medium-sized commercial buildings. The platform reads out the installation, automatically builds a model of the building, and controls heat pumps, ventilation, solar panels and batteries from the cloud to save energy and prevent grid congestion.on requestLimitedNo tools match these filters.
Frequently asked questions
- What are good alternatives to OpenSolar?
- For renewable energy & energy transition we list 12 alternatives. OpusFlow, Reonic and Sollit come first: tools that do the same work, with the strongest published GDPR profile.
- Is there an alternative to OpenSolar with a free trial?
- Yes: OpusFlow, Reonic, Aurora Solar / HelioScope, Siemens Building X, Heartbeat AI (1KOMMA5°).
- How do I choose?
- Start with the GDPR profile and the data processing agreement, then compare features and price during a trial period.
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