Why RIENU
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Second‑Life Power & Circular Tech
Second‑life energy. First‑class reliability.
We recover, repower, and redeploy batteries and electronics—closing the loop for utilities, data centers, OEMs, and cities.
Built for circular energy at scale
We unify recycling, second‑life repurposing, and power delivery—end‑to‑end. Our comprehensive approach transforms waste into reliable energy assets.
Single Partner Solution
Complete pathway from intake through grading, repacking, to final deployment
Lower LCOE
Second‑life packs deliver cost savings with warranty‑backed performance guarantees
Full ESG Reporting
Complete chain‑of‑custody documentation and environmental impact tracking
What "Second‑Life" Means
Tested, Safe, Right‑Sized
We redeploy batteries that have completed their initial lifecycle for stationary storage applications. Every module undergoes rigorous testing to ensure safety and performance standards.
  • EV & data‑center modules
  • 100% traceable components
  • Cell‑level analytics & grading
Power Systems Portfolio
From portable units to containerized BESS and behind‑the‑meter microgrids—scalable solutions for every application.
RIENU Mini
Portable/temporary power for events and emergency backup
RIENU Pod
Skid or trailer BESS delivering 50–500 kWh capacity
RIENU Core
Container BESS providing 1–5+ MWh for utility‑scale applications
RIENU Grid
Turnkey microgrid with PV/EVSE integration for comprehensive energy solutions
Circular Technologies Stack
Hardware + software to keep assets in play longer. Our integrated platform maximizes asset utilization through intelligent management.
Predictive Health
AI‑powered diagnostics predict maintenance needs and optimize performance
Pack Orchestration
Dynamic load balancing across multiple battery packs for optimal efficiency
Swap Logistics
Seamless asset rotation and maintenance scheduling
Traceability
Complete lifecycle tracking from origin to end‑of‑life
Recycling & Intake Services
Certified Logistics & Safe Processing
From pickup to proof of destruction, we handle every step with complete compliance and transparency.
  • Nationwide pickup
  • Hazmat compliant transport
  • Secure data wiping
  • OEM returns processing
  • Certificates of destruction issued
Test, Grade, Repurpose
We test every module then assign the highest‑value path. Our rigorous evaluation process ensures optimal asset utilization.
01
EIS & Cycle Tests
Electrochemical impedance spectroscopy and capacity testing
02
Pack Re‑engineering
Custom configurations for specific application requirements
03
Warranty Tiers
Performance guarantees based on comprehensive testing results
04
RMA Pathways
Return merchandise authorization for seamless asset management
Deploy: Microgrids & Backup
Reduce diesel dependency, shave peak demand, and maintain critical operations through outages with reliable second‑life power systems.
Data Centers
Critical backup power and peak shaving
Utilities
Grid stabilization and renewable integration
Municipal Depots
Fleet charging and facility backup
Events
Silent, clean temporary power
Construction
Off‑grid power for remote sites
Film/TV
Quiet, emission‑free production power
Industries We Serve
Tailored solutions across sectors requiring reliable, sustainable power infrastructure.
Utilities
Grid stabilization and renewable energy storage
Data Centers
Mission‑critical backup and peak demand management
OEMs
Battery lifecycle management and circular supply chains
Municipalities
Public facility backup and fleet electrification support
Campuses
Resilient power for educational and corporate facilities
Logistics & Ports
Equipment charging and operational continuity
Stadiums & Events
High‑capacity temporary and permanent installations
Impact & Economics
Quantified environmental and economic benefits from circular battery deployment.
2.5M
CO₂e Avoided
Metric tons of emissions prevented annually
850K
Waste Diverted
Pounds of battery materials kept in circulation
72%
Diesel Offset
Reduction in fossil fuel generator usage
$0.18
Per kWh Saved
Average cost reduction versus new batteries
99.8%
Uptime
System availability across all deployments

Second‑life can cut embodied carbon by 50–80% vs new battery production.
Compliance & Safety
Comprehensive safety protocols and regulatory compliance ensure reliable, code‑compliant installations.
UL/IEC Pathways
Listed components following established safety standards
NFPA/NEC Alignment
Fire safety and electrical code compliance
DOT Hazmat
Certified transportation and handling procedures
Fire Mitigation
Advanced enclosures and suppression systems
Remote Monitoring
24/7 system health and safety surveillance
Case Studies
Real‑world deployments demonstrating proven performance and ROI across diverse applications.
Edge DC Backup
2 MWh second‑life container installation delivering 27% capex savings with 99.9% uptime reliability.
City Depot Microgrid
PV + 800 kWh BESS integration achieving 64% diesel reduction for fleet operations.
Live Event Power
Silent set operation with zero emissions, maintaining 99.9% uptime for major productions.
Partnerships
We collaborate with OEMs, recyclers, integrators, and financiers to create comprehensive circular energy ecosystems.
Our strategic partnerships enable end‑to‑end solutions from battery sourcing through deployment and lifecycle management.
How It Works
Five‑step process from initial intake to ongoing asset management and renewal.
Intake
Pickup, logging, and initial triage of battery assets
Test/Grade
Comprehensive module health assessment and performance data
Engineer
Right‑size pack configuration and power conversion system design
Deploy
Professional installation, commissioning, and monitoring setup
Renew/Recycle
End‑of‑life return and material recovery
Resources
Technical documentation, specifications, and educational materials for informed decision‑making.
Technical Documentation
  • Product 1‑Pager
  • System Spec Sheets
  • Safety Brief
Research & Analysis
  • Whitepaper: "LCOE with Second‑Life"
  • Industry benchmarks
  • ROI calculators
Support Materials
  • Frequently Asked Questions
  • Installation guides
  • Compliance checklists
Get a Quote / Contact
Ready to transform your energy infrastructure? Connect with our team for customized solutions and pricing.
Project Details
Name: ________________
Email: ________________
Organization: ________________
Use case: ________________
Power/energy need: ________________
Timeline: ________________
Our experts will review your requirements and provide a comprehensive proposal within 48 hours.
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