Residential Estates – Sustainability case

Below is a high-level technical design and business model proposal for deploying WiSolar batteries in residential estates:

Technical Design

System Components
  • WiSolar Batteries (WIS 5.0L-B1)
  • Modular lithium-ion battery units to store solar energy.
  • Each unit supports up to 5.1kWh capacity (can scale based on demand).
  • Solar PV Panels
  • Installed on rooftops or as a centralized solar farm.
  • Sized according to the estate’s energy consumption.
  • Hybrid Inverters
  • Converts DC power (from solar and batteries) to AC power for household use.
  • Manages energy flow between the grid, batteries, and load.
  • Energy Management System (EMS)
  • Monitors energy generation, storage, and consumption in real-time.
  • Provides an interface for residents and estate managers to track usage.
  • Grid Connection (Optional)
  • For estates that are partially connected to the grid.
  • Acts as a backup or secondary power source.

System Design Approaches

  • Option 1: Decentralized System (Individual Homes)
  • Each home has its own WiSolar battery and solar PV system.
  • Homeowners manage their own energy usage and storage.
  • Ideal for estates where homes operate independently.
  • Option 2: Centralized System (Shared Community Battery)
  • A large central WiSolar battery system serves the entire estate.
  • Solar energy is collected from a central solar farm or rooftop array.
  • Energy is distributed to homes based on demand.
  • Option 3: Hybrid System
  • Combines decentralized home batteries with a smaller centralized battery.
  • Central battery acts as a backup or buffer for peak demand.

Business Model

  • Outright PurchaseOwnership Models
  • Homeowners or the estate management purchase and own the WiSolar batteries outright.
  • Full control over energy usage and cost savings.
  • Subscription ModelOwnership Models
  • Residents pay a monthly fee for access to stored energy from the central battery.
  • WiSolar or estate management retains ownership of the batteries.
  • Lease-to-OwnOwnership Models
  • Residents or the estate lease the batteries with the option to own them after a set period.
  • Low upfront cost with long-term ownership benefits.
  • Energy as a Service (EaaS)Ownership Models
  • WiSolar provides a fully managed energy solution, including installation, maintenance, and operation.
  • Residents pay per kWh of energy consumed from the system.
  • Revenue StreamsBusiness Model
  • Energy Savings: Residents save on electricity bills by using stored solar energy.
  • Energy Trading: Surplus energy can be sold back to the grid or to other residents (if regulations permit).

Financial Benefits

  • Up to 40% Cost Savings: Reduction in electricity bills for residents.
  • Low Maintenance Costs: WiSolar batteries are durable with minimal upkeep.
  • High ROI: Faster return on investment due to energy independence and grid reliance reduction.

Implementation Plan

  • Phase 1: Feasibility Study
  • Analyze the estate’s energy consumption patterns.
  • Assess solar potential and battery storage needs.
  • Engage stakeholders to determine the preferred ownership/business model.
  • Phase 2: System Design and Installation
  • Customize the system (decentralized, centralized, or hybrid).
  • Install WiSolar batteries, solar PV systems, and EMS.
  • Conduct testing and commissioning.
  • Phase 3: Operation and Monitoring
  • Train estate management and residents on system usage.
  • Implement real-time monitoring via EMS or a mobile app.
  • Schedule regular maintenance and performance reviews.
  • Phase 4: Scaling and Expansion
  • Expand battery capacity as the estate grows.
  • Integrate additional features, such as EV charging stations or smart appliances.

Sustainability and Marketing Benefits

  • Sustainability: Position the estate as a green, eco-friendly community.
  • Marketing: Highlight energy independence and cost savings as selling points to attract residents.
  • Community Engagement: Educate residents about renewable energy benefits.

Contact us to learn more or make a purchase: salesng@wisolar.co