Project Cases 
Location: Apartment Hybrid Starter Kit
Source: Longlight Energy Published: 2026-07-18 Views: 202
Project Overview
Urban apartments with limited roof space still want bill savings and blackout protection. A compact hybrid inverter plus a 5kWh wall pack delivers a practical starter architecture.
Customer Challenge
Space is limited, noise must stay low, and installers need a repeatable kit that can be sold through distributors without complex engineering for every unit.
Longlight Solution
Deploy Longlight-INV1 (1.5–3.5kW) or Longlight-INV2 (3.5kW 24V) with Longlight-200 5kWh wall ESS. Portable or rooftop 100–400W panels feed the MPPT; the inverter prioritizes PV, then battery, then grid.
System Architecture
- Compact PV string or portable modules → hybrid MPPT
- Longlight-INV1 / Longlight-INV2 pure sine hybrid inverter
- Longlight-200 5kWh wall ESS with multi-unit parallel option later
- Essential-load panel for lights, fridge and Wi-Fi gear
Key Products Deployed
Technical Highlights
- Built-in lithium dual-activation on PV connection (Longlight-INV1 family)
- Optional Wi-Fi remote monitoring
- Quiet indoor-friendly wall battery
- Clear upgrade path to 10kWh storage
System Snapshot
| Inverter options | Longlight-INV1 / Longlight-INV2 |
|---|---|
| Battery | Longlight-200 5kWh |
| Typical PV | 2–4 kWp depending on roof |
| Use case | Apartments, townhouses, small courtyards |
Results & Benefits
- Lower monthly grid bills via solar self-use
- Reliable backup for essential circuits
- Distributor-friendly SKU combination from product center
Related Equipment
Longlight-INV1
Longlight-INV2
Longlight-200 ESS
Need a similar PV + energy storage design for your market? Longlight Energy supports OEM/ODM, multi-unit parallel schemes and global distribution partners.
Reference solution based on Longlight Energy product portfolio — Solar Inverter & Battery Energy Storage Power Supply.
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