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Product Requirement Document (PRD)

PRD Entry

Details

Product Users

  • Identify the primary users and buyers of the product

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  • Define the market need or gap

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  • Describe how end users will use this product

Functional Requirement

  • Describe the specific interaction between users and the product

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  • Identify specific features and functionality the end user can access

Non Functional Requirement

  • Describe non-functional requirements the product must meet

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  • List all product design constraints

Product Support

  • List what needs to accompany the product that is not related to specific product operations

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  • Examples may include documentation, accessories, installation instructions, maintenance tools, or replacement parts.

User Story & Product Backlog for SRU Solar Water Heating System

As A

I Need

To

Commercial Facility Manager

A mobile app that provides real-time monitoring, efficiency tracking, and fault detection

Optimize system performance, reduce operational costs, and ensure minimal downtime

Residential

Homeowner

A wireless console that allows me to monitor and adjust my solar water heater settings automatically

Maximize energy efficiency without manual adjustments

Government Facility Administrator

A cost-effective, environmentally friendly solar water heating system that meets regulatory standards

Comply with energy mandates, lower costs, and reduce the carbon footprint

Product Backlog for SRU Solar Water Heating System

User Story

Priority

Requirement

Acceptance Criteria

001

1

As a commercial facility manager, I need a mobile app that provides real-time monitoring, efficiency tracking, and fault detection to optimise system performance and reduce operational costs.

- Real-time efficiency tracking
- Fault detection alerts
- Remote system configuration

002

2

As a residential homeowner, I need a wireless console that allows monitoring and adjust my solar water heater settings automatically to maximise energy efficiency without manual adjustments

- Automatic solar panel adjustment
- Mobile and wireless functionality
- User-friendly interface

003

3

As a government facility administrator, I need a cost-effective, environmentally friendly solar water heating system that meets regulatory standards to comply with energy mandates and lower costs.

- Compliance with government energy regulations
- Cost savings analysis
- Lower carbon footprint

Product Roadmap for SRU Solar Water Heating System

Product Name or Component

Phase 1 Development (Q1)

Phase 2 Development (Q2)

Phase 3 Development (Q3)

Commercial Solar Water Heating System

  • Design and develop multiple commercial solar collector systems

  • Identify and procure compatible water tanks and storage options

  • Finalize supply chain contracts

  • Beta test commercial solar systems

  • Finalise water tank and storage options

  • Begin phase-out of outdated products

  • Finalise the commercial system for launch

  • Beta test commercial app prototype

  • Develop and integrate realtime monitoring features

Residential Solar Water Heating System

  • Evaluate product mix and determine which products to retire

  • Identify key requirements for residential solar systems

  • Finalise the initial residential system design

  • Begin development of residential solar collectors

  • Procure initial inventory for residential systems

  • Start planning residential console features

  • Beta test residential solar collector systems

  • Design a residential system management console

  • Begin prototype testing of residential app

SRU Mobile App (Commercial & Residential)

  • Define app requirements

  • Secure an external development team

  • Establish backend infrastructure for the app

  • Beta test the commercial system app

  • Implement system efficiency tracking

  • Develop an automated fault detection system

  • Finalise & launch the commercial system app

  • Beta test the residential app

  • Develop real-time customer support integration

Wireless Console for Residential Users

  • Identify key features for the console

  • Design the initial interface and connectivity requirements

  • Establish a development timeline

  • Develop a console prototype

  • Begin internal testing & troubleshooting

  • Integrate automated solar optimisation features

  • Beta test the residential console

  • Finalise design and prepare for production

  • Ensure seamless connectivity with the app

Business Case for SRU Solar Water Heating System

Business Case Component

Components Defined

Summarize the Marketing Need and Opportunity

  • Government agencies, commercial, and residential sectors face rising energy costs and carbon reduction mandates
     

  • Market demand for affordable, efficient, and sustainable water heating solutions is increasing
     

  • SRU's new product line offers cost savings, advanced monitoring, and an improved user experience

Define the primary competition

  • Competing solar water heating solutions include SolarEdge, SunEarth, and Rheem

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  • Most competitors lack real-time system monitoring, automation, and seamless integration with mobile apps

Define product capabilities

  • Solar collector system with water storage and delivery

  • Real-time monitoring and fault detection via a mobile app

  • Wireless residential console with automated solar optimization

  • 24/7 help desk integration for instant support.

Summarize the Product Vision

  • Provide an innovative, high-efficiency solar water heating system with smart automation

  • Ensure ease of use, cost-effectiveness, and sustainability for all customer segments

Value proposition and positioning statement

  • Value Proposition: SRU offers a next-generation solar water heating system with automated efficiency optimisation, real-time diagnostics, and cost savings

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  • Positioning Statement: Unlike traditional systems, SRU’s solution integrates smart automation, a wireless console, and mobile monitoring for better performance and user experience.

Product Concept Alignment with Strategic Objectives

  • Aligns with SRU’s mission to provide sustainable and efficient energy solutions

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  • Meets increasing demand for green energy and regulatory compliance

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  • Strengthens SRU’s market presence in government, commercial, and residential sectors.

Describe GTM Plans

  • Phase 1 (Q1): Product design, supply chain setup, and market evaluation

  • Phase 2 (Q2): Beta testing for commercial systems, residential system design, and procurement

  • Phase 3 (Q3): Beta testing residential systems and launching the commercial system app

  • Phase 4 (Q4): Launch commercial systems and app, beta test the residential console, and finalise the residential app

Summary
(Financial Analysis)

  • Initial investment: $2.5M

  • Year 1 return: $3.2M, Cash Flow: $2.7M

  • Year 2 return: $3.5M, Cash Flow: $3.25M

  • Year 3 return: $2.5M, Cash Flow: $2.4M

  • Internal Rate of Return (IRR): 98%

  • Net Present Value (NPV) at 15%: $3.38M

Summary
(Risk Analysis)

Key risks:

  • Potential design and development delays

  • Supply chain and distribution challenges

  • Cost overruns and funding shortages

  • Customer adoption rates are lower than expected

Mitigation: Hiring additional developers, securing supplier contracts, and refining marketing strategies

List of Open Issues

  • Recruiting two developers to avoid skill and capacity shortages​

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  • Addressing a potential short-term funding gap to keep development on track

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