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205 changes: 205 additions & 0 deletions docs/use-cases/microgrid-aggregation.md
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# Microgrid Aggregation Use Case Document

## Introduction
Microgrid aggregation is a critical use case in the energy sector where a Beckn Application Platform (BAP) searches for and connects with energy storage solutions (primarily batteries) to store excess energy produced by energy producers. This document outlines the comprehensive workflow, scope, and requirements for implementing microgrid aggregation using the DENT Protocol, which is an adaptation of the Beckn Protocol for the energy sector.

## Scope
The microgrid aggregation use case covers:

1. **Discovery of Energy Storage Solutions**: Finding available batteries or energy storage systems within a geographical area.
2. **Energy Storage Contracts**: Creating contracts for storing excess energy in available storage systems.
3. **Energy Retrieval**: Retrieving stored energy when needed.
4. **Monitoring and Management**: Real-time monitoring of energy storage levels and management of storage resources.
5. **Settlement and Reconciliation**: Payment and settlement for energy storage services.

Out of scope:
- Physical energy transfer infrastructure (hardware)
- Regulatory compliance verification
- Energy quality certification

## Use Case Flows

### 1. Discovery Flow
1. **Search Initiation**: BAP initiates a search for available energy storage solutions.
- BAP sends a search request with location, capacity requirements, and time duration.
- BPP (Beckn Provider Platform) responds with available storage options.

2. **Storage Provider Selection**: BAP selects a suitable storage provider.
- BAP evaluates storage options based on capacity, cost, and availability.
- BAP sends a select request to the chosen BPP.

### 2. Energy Storage Contract Flow
1. **Contract Initialization**: BAP initializes a storage contract.
- BAP sends storage requirements (capacity, duration, etc.).
- BPP responds with terms, conditions, and pricing.

2. **Contract Confirmation**: BAP confirms the storage contract.
- BAP sends confirmation with payment details.
- BPP confirms the contract and prepares the storage system.

### 3. Energy Transfer Flow
1. **Storage Initiation**: Energy producer begins transferring excess energy to storage.
- BPP updates the status of energy transfer.
- BAP monitors the transfer progress.

2. **Storage Completion**: Energy transfer is completed.
- BPP sends confirmation of completed storage.
- BAP receives storage receipt with details.

### 4. Energy Retrieval Flow
1. **Retrieval Request**: BAP requests energy retrieval.
- BAP sends retrieval request with amount and time.
- BPP confirms availability and prepares for retrieval.

2. **Retrieval Execution**: Energy is retrieved from storage.
- BPP updates retrieval status.
- BAP monitors retrieval progress.

### 5. Contract Termination Flow
1. **Contract Closure**: BAP requests to close the storage contract.
- BAP sends contract termination request.
- BPP confirms termination and processes final settlement.

## Logical Process Workflow

```
┌────────────┐ ┌─────────────┐ ┌────────────────┐ ┌─────────────────┐
│ Discovery │────▶│ Contract │────▶│ Energy Storage │────▶│ Energy Retrieval │
└────────────┘ │ Negotiation │ └────────────────┘ └─────────────────┘
└─────────────┘ │
▲ │
│ │
└────────────────────────────────────────────┘
│
▼
┌─────────────────┐
│ Settlement & │
│ Reconciliation │
└─────────────────┘
```

## Key Digital Functionalities

### 1. Search and Discovery
- Geospatial search for energy storage providers
- Filtering based on storage capacity, availability, and pricing
- Real-time availability status

### 2. Contract Management
- Dynamic contract creation and management
- Terms and conditions negotiation
- Contract lifecycle tracking

### 3. Energy Transfer Monitoring
- Real-time monitoring of energy transfer
- Energy storage status tracking
- Alerts and notifications for critical events

### 4. Billing and Payment
- Automated billing based on storage usage
- Multiple payment options
- Invoice generation and management

### 5. Analytics and Reporting
- Storage utilization reports
- Cost analysis
- Energy efficiency metrics

## Functional Requirements

### For BAP (Energy Consumer/Producer)
1. **Search Capability**
- Must be able to search for storage providers using location parameters
- Must support filtering by capacity, availability, and price

2. **Contract Management**
- Must support creation and management of storage contracts
- Must handle contract modifications and terminations

3. **Monitoring**
- Must provide real-time monitoring of storage status
- Must support alerts for critical events (e.g., capacity thresholds)

4. **Payment Processing**
- Must support multiple payment methods
- Must handle automatic billing based on usage

### For BPP (Storage Provider)
1. **Catalog Management**
- Must maintain updated catalog of available storage capacity
- Must provide accurate pricing information

2. **Reservation System**
- Must handle reservation of storage capacity
- Must prevent double-booking of resources

3. **Energy Transfer Control**
- Must control energy flow into and out of storage
- Must ensure safe operation within technical parameters

4. **Billing**
- Must generate accurate bills based on actual usage
- Must support various pricing models (time-based, capacity-based)

## Cross-cutting Requirements

### Security
1. **Authentication and Authorization**
- All API calls must be authenticated
- Access control based on roles and permissions

2. **Data Protection**
- Encryption of sensitive data in transit and at rest
- Compliance with data protection regulations

### Performance
1. **Responsiveness**
- Search results must be returned within 2 seconds
- Status updates must be near real-time (< 5 seconds delay)

2. **Scalability**
- System must handle peak loads during high demand periods
- Must support multiple concurrent transactions

### Reliability
1. **Fault Tolerance**
- System must continue operation despite partial failures
- Automatic recovery mechanisms

2. **Data Consistency**
- Consistent state across distributed components
- Transaction integrity across the workflow

### Interoperability
1. **Standards Compliance**
- Must comply with DENT Protocol specifications
- Must support standard energy industry metrics and units

2. **Integration Capability**
- Must provide well-documented APIs for integration
- Must support standard authentication mechanisms

## Implementation Considerations

### API Design
- Follow RESTful design principles
- Implement proper error handling and status codes
- Provide comprehensive API documentation

### Data Model
- Design flexible data models to accommodate various storage types
- Support for different energy measurement units
- Historical data storage for analytics

### User Experience
- Intuitive interfaces for monitoring storage status
- Clear visualization of energy flows
- Simplified contract management

### Deployment
- Cloud-native architecture for scalability
- Containerization for consistent deployment
- Automated testing and deployment pipelines

## Conclusion
The microgrid aggregation use case leverages the DENT Protocol to create an efficient marketplace for energy storage, enabling better utilization of renewable energy resources and grid stability. By implementing this use case, energy producers can optimize their production by storing excess energy, while consumers benefit from more reliable and potentially lower-cost energy access.