UEI: Implementation Guide: Version 1.3: time-based,, energy unit-based and money-based charging

## Description
Develop the **UEI Implementation Guide Version 1.3**, focusing on charging mechanisms based on time, energy units, and monetary values. The guide will outline the technical design, workflows, and operational instructions for implementing these charging models, ensuring compatibility with the existing UEI infrastructure.

## Goals
- [ ] Define the technical architecture for time-based, energy unit-based, and money-based charging.
- [ ] Document workflows for each charging mechanism.
- [ ] Provide integration guidelines with the UEI system for smooth deployment.
- [ ] Include operational procedures for configuring and managing these charging models.
- [ ] Review and validate the guide with stakeholders for accuracy and completeness.

## Expected Outcome
A detailed **UEI Implementation Guide Version 1.3** covering time-based, energy unit-based, and money-based charging mechanisms. The document will enable seamless implementation and operation of these charging models in the UEI system.

## Acceptance Criteria
- [ ] Technical architecture for all three charging mechanisms is documented.
- [ ] Workflows for time-based, energy unit-based, and money-based charging are clearly outlined.
- [ ] Integration instructions are provided for deploying the models within the UEI system.
- [ ] Operational guidelines are included and tested for accuracy.
- [ ] The guide is reviewed, approved, and ready for release.

## Mockups / Wireframes
NA

## Product Name
Beckn - UEI

## Domain
Energy Systems

## Tech Skills Needed
- Technical Documentation
- Workflow Design
- System Integration
- Energy Charging Models

## Complexity
High

## Category
Documentation

## Sub Category
Implementation Guide