Joule™ EMS
Energy Orchestrated. The intelligent controller at the heart of your commercial solar and storage system.
The Joule Controller is Ampra Grid’s purpose-built hardware for orchestrating solar and battery storage across commercial and industrial (C&I) facilities. It pairs on-site intelligence with cloud-based control so your system does more than generate power. It actively manages when and how that energy is produced, stored, and dispatched to protect your bottom line.
Engineered for manufacturing plants, commercial buildings, and the EPCs and installers who serve them, the Joule turns a collection of inverters, meters, and batteries into one coordinated, revenue-aware energy system.
Why installers choose the Joule
Cut peak demand charges. The Joule continuously watches facility load and intelligently dispatches stored energy to shave peaks, targeting the demand charges that quietly dominate a commercial utility bill.
Built on open standards. Native support for SunSpec, Modbus, and IEEE 2030.5 means the Joule speaks the same language as the equipment you already install. No proprietary lock-in, no guessing games at commissioning.
Hardware plus cloud orchestration. On-device control keeps the system responsive and resilient, while Ampra Grid’s cloud platform delivers remote visibility, tuning, and performance optimization across every site you manage.
Designed for C&I, not retrofitted from residential. Every design decision targets the scale, reliability, and economics of commercial and industrial deployments.
The Joule™ EMS is an industrial-grade edge controller that maximizes returns on every commercial solar and storage project. Unlike basic inverter controls that leave up to 40% of potential savings untapped, Joule's OptimaEngine delivers intelligent, real-time optimization tailored to your specific project.
Key Features
Intelligent Optimization
- OptimaEngine for real-time energy optimization
- Adapts to building load profiles and utility rates
- Advanced demand charge management
Industrial Reliability
- Operating temperature: -20° to 70°C
- NEMA 3R enclosure for outdoor installation
- Stores up to one month of offline data
Plug-and-Play Installation
- Works with leading inverter brands
- Built-in WiFi, Ethernet, and 4G/LTE connectivity
- Quick installation with standard connections
Ready to unlock your project's full potential?
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Our Pricing
Discover what is the best pricing for you.
- 3 years of monitoring and LTE connectivity included
- 15 hours project consultation
- Email and phone support
- Everything in Essential
- 30 hours project consultation
- Enhanced analytics and priority support
- Email and phone support
- Custom pricing
- Expanded consulting services
- All modules & features
- Hardware customization available