Solar Accessories Complete Guide
Last updated: 12 April 2026
Everything beyond the solar panel matters. Learn about inverters, batteries, ACDB/DCDB, earthing, lightning arresters, and monitoring systems that make your solar installation safe, efficient, and long-lasting.
What accessories do I need for a home solar system?
A complete home solar system needs 6 key accessories beyond the panels: (1) Solar inverter (string inverter recommended for most UP homes, Rs 22,000-40,000 for 3-5kW), (2) ACDB and DCDB safety boxes with MCBs and surge protection, (3) Earthing kit with two earthing points as per IS 3043, (4) DC cables and MC4 connectors, (5) Mounting structure, and (6) WiFi monitoring system. Batteries (Rs 12,000 for tubular to Rs 2 lakh for lithium) are optional — only needed if you have frequent power cuts. A lightning arrester (Rs 2,000-5,000) is recommended for tall buildings.
Source: BL Solar Solutions engineering team | Last updated: September 2026
Solar Inverters
The inverter converts DC power from panels to AC power for your home. Choosing the right type is critical.
| Feature | String Inverter | Micro Inverter | Hybrid Inverter |
|---|---|---|---|
| Cost (3kW) | ₹22,000-35,000 | ₹40,000-64,000 | ₹40,000-70,000 |
| Efficiency | 96-98% | 95-97% | 93-97% |
| Best For | Most residential | Shaded rooftops | Battery backup needed |
| Battery Support | No | No | Yes (built-in) |
| Monitoring | WiFi app included | Per-panel monitoring | WiFi app included |
| Warranty | 5-10 years | 15-25 years | 5-10 years |
| PM Surya Ghar | Eligible | Eligible | Eligible |
| Popular Brands | Growatt, Goodwe, Havells | Enphase, AP Systems | Growatt, Luminous, Goodwe |
Our Recommendation for UP Homes
For most residential installations in Uttar Pradesh, a string inverter (Growatt or Goodwe, 3-5kW) offers the best balance of cost, efficiency, and reliability. String inverters are the most commonly installed type under PM Surya Ghar and are supported by all DISCOM net metering processes. If you need battery backup for power cuts, upgrade to a hybrid inverter from the same brand.
* Prices are indicative for 2026 and vary by brand, capacity, and vendor. Read our detailed Solar Inverter Guide for full comparison.
Solar Batteries
Batteries store excess solar energy for use during power cuts or at night. Essential for areas with unreliable grid supply.
When Do You Need a Battery?
You need a battery if your area has frequent power cuts (2+ hours daily), you want to use solar power at night, or you need uninterrupted power for critical appliances. If your area has stable power with net metering, the grid acts as your free virtual battery and you can skip the battery cost entirely.
| Feature | Lithium-Ion (LFP) | Lead-Acid (Flat Plate) | Tubular Lead-Acid |
|---|---|---|---|
| Price (5kWh) | ₹1,50,000-2,00,000 | ₹25,000-35,000 | ₹12,000-15,000 (150Ah) |
| Cycle Life | 4,000-6,000 cycles | 300-500 cycles | 1,200-1,500 cycles |
| Depth of Discharge | 90-95% | 50% | 60-70% |
| Warranty | 8-10 years | 1-2 years | 3-5 years |
| Maintenance | Zero maintenance | Regular water top-up | Periodic water top-up |
| Weight (5kWh) | 40-50 kg | 150-200 kg | 50-60 kg (per battery) |
| Best For | Long-term, zero hassle | Budget, short-term | Best value for money |
Price
₹12,000-15,000
Capacity
150Ah (1.8kWh)
- Proven technology, widely available
- Brands: Luminous, Exide, Amaron
- Requires periodic distilled water top-up
Price
₹1,50,000-2,00,000
Capacity
5kWh
- Zero maintenance, 10+ year lifespan
- Brands: Growatt, Goodwe, Deye
- 90-95% usable capacity (vs 50-60% lead-acid)
Read our detailed Solar Battery Guide for full brand comparison and sizing calculator.
ACDB & DCDB — Safety Essentials
These distribution boxes protect your solar system from electrical faults, surges, and lightning damage.
Installed between solar panels and inverter. Handles DC (direct current) protection.
Contains:
- DC MCBs — rated 600V/800V DC, sized per string current
- DC SPD — Type 2 surge protection device (1000V DC rated)
- DC Isolator — rotary switch for safe panel disconnection
Important: Never use AC MCBs for DC circuits. DC arcs do not self-extinguish like AC, requiring specially rated DC-rated components.
Installed between inverter and main electrical panel. Handles AC (alternating current) protection.
Contains:
- AC MCBs — rated for inverter output current (e.g., 25A for 5kW)
- AC SPD — Type 2 surge protection (275V/385V rated)
- AC Isolator — for safe grid disconnection during maintenance
DISCOM Requirement: The ACDB must include a visible AC isolator switch accessible to the DISCOM lineman for net metering inspection and emergency disconnection.
Why ACDB/DCDB Are Non-Negotiable
Short Circuit Protection
MCBs trip instantly to prevent cable fires and equipment damage
Surge Protection
SPDs divert lightning and grid surges away from your inverter and panels
Safe Maintenance
Isolators let technicians safely disconnect sections for servicing
Earthing Kit — Proper Grounding
Earthing protects people from electric shock and equipment from voltage surges. It is mandatory for all solar installations.
Pipe Earthing
Most common for residential solar. A galvanized iron pipe (38mm diameter, 2m length) is buried vertically in the ground with a charcoal and salt mixture. Cost: Rs 1,500-3,000 per point.
Plate Earthing
A copper or GI plate (600mm x 600mm) is buried at least 3m deep. Used for larger commercial systems. Better conductivity but higher cost: Rs 3,000-6,000 per point.
Chemical Earthing (Maintenance-Free)
Uses a backfill compound that maintains low earth resistance for 15-20 years. No water pouring needed. Cost: Rs 4,000-8,000 per point. Ideal for dry soil areas.
- Minimum two earthing points required for every solar installation
- One earthing for solar panel mounting structure (body earthing)
- One earthing for inverter and electrical system (system earthing)
- Earth resistance must be below 5 ohms (measured with earth tester)
- Earthing conductor: minimum 8 SWG GI wire or 6mm² copper wire
- Earthing pit must be accessible for periodic testing
- Charcoal + salt mixture around electrode improves conductivity
Warning: Do Not Skip Earthing
Systems without proper earthing are a safety hazard and will fail the DISCOM inspection required for net metering. Poor earthing is the #1 cause of inverter damage during lightning strikes. If your installer skips earthing or uses substandard materials, it is a serious red flag.
Lightning Arrester
Surge protection devices (SPDs) divert lightning energy to ground, protecting your expensive inverter and panels.
Type 1 SPD
Direct lightning protection
When needed: Building has external lightning protection
Cost: ₹5,000-10,000
Rating: 25-50kA discharge capacity
Type 2 SPD
Most CommonIndirect lightning & surge protection
When needed: All solar installations (recommended)
Cost: ₹2,000-5,000
Rating: 10-20kA discharge capacity
When You Need One
- Tall buildings or highest structure in the area
- Open terrace with no surrounding tall structures
- Areas prone to thunderstorms (UP monsoon: Jul-Sep)
- System value exceeds ₹2 lakh
Solar Monitoring System
Track your solar generation, detect faults early, and maintain warranty compliance with real-time monitoring.
| Brand | Platform / App | Connectivity | Features |
|---|---|---|---|
| Growatt | ShineServer / ShinePhone | WiFi dongle (included) | Real-time monitoring, fault alerts, export reports |
| Havells | Havells MyHome | WiFi built-in | Generation tracking, energy analytics, warranty link |
| Goodwe | SEMS Portal | WiFi dongle (included) | String-level monitoring, weather data, ROI tracking |
| Fronius | Fronius Solar.web | WiFi + Ethernet | Advanced analytics, 25-year data storage, fleet management |
| Third-Party | Solar Assistant / PVOutput | WiFi/4G dongle (₹3,000-5,000) | Works with any inverter, custom dashboards, community sharing |
Detect Faults Early
Get instant alerts on your phone if generation drops unexpectedly. Catch panel damage, inverter errors, or shading issues before they cost you money.
Track ROI
Monitor daily, monthly, and yearly generation to verify your system is performing as promised. Compare actual vs expected output.
Warranty Claims
Many manufacturers require monitoring data as proof of proper operation for warranty claims. Without it, your warranty claim may be rejected.
No WiFi? Use 4G
If your rooftop does not have WiFi coverage, most inverter brands offer a 4G/GPRS dongle (Rs 3,000-5,000) that uses a SIM card to send monitoring data. This is common in rural UP where the inverter is on a terrace far from the WiFi router.
Best Choices for UP Homes
Our recommendations based on 500+ installations across Uttar Pradesh
Best WiFi monitoring, highest efficiency (97.6%), 10-year warranty available. Most popular in our UP installations.
Runner Up
Goodwe DNS Series
Price Range
₹22,000-45,000
150Ah tall tubular, 5-year warranty, widely available in UP. Best value for areas with 2-4 hour power cuts.
Runner Up
Exide Inva Master
Price Range
₹12,000-15,000
5.12kWh lithium LFP, stackable to 25kWh, 10-year warranty, seamless integration with Growatt hybrid inverters.
Runner Up
Goodwe Lynx Home
Price Range
₹1,50,000-2,00,000
BIS-certified components, IP65 rated for outdoor use, properly rated DC MCBs and SPDs included.
Runner Up
L&T / Schneider
Price Range
₹3,000-8,000 (set)
Maintenance-free for 15-20 years, consistent low resistance even in dry soil conditions of western UP.
Runner Up
GI pipe earthing
Price Range
₹4,000-8,000 per point
Growatt ShineServer and Goodwe SEMS are the most reliable. Free lifetime cloud monitoring with the inverter purchase.
Runner Up
4G dongle for rural areas
Price Range
Included with inverter
Official Resources
- PM Surya Ghar Portal — Apply for solar subsidy (up to ₹78,000 central + ₹30,000 UP state)
- MNRE — Ministry of New and Renewable Energy guidelines
- UPNEDA — UP New and Renewable Energy Development Agency
- BIS — Bureau of Indian Standards for solar equipment certification (IS 16221, IS 3043)
Solar Accessories FAQs
Common questions about solar accessories and components for home installations
Not necessarily. If you have an on-grid solar system with net metering and your area has stable power supply, you do not need a battery. The grid acts as your virtual battery. However, if you experience frequent power cuts (more than 2-3 hours daily), a hybrid system with battery backup is recommended. In areas of UP with 4+ hours of daily power cuts, a lithium battery (5kWh, around Rs 1.5-2 lakh) or tubular battery (150Ah, Rs 12,000-15,000) can provide reliable backup.
For residential on-grid solar in UP, Growatt and Goodwe offer the best value with 5-10 year warranties, built-in WiFi monitoring, and excellent efficiency (96-98%). Havells and Luminous are trusted Indian brands with strong after-sales service networks across UP. For budget installations, UTL and Microtek are popular choices. We recommend choosing a brand with a local service center in your district for faster warranty support.
Most modern inverters come with built-in WiFi monitoring and a free mobile app. Growatt uses ShineServer, Havells uses MyHome app, and Goodwe uses the SEMS portal. If your inverter does not have WiFi, you can add a WiFi dongle (Rs 3,000-5,000) or a 4G dongle for areas with poor WiFi. We strongly recommend monitoring because it helps you detect faults early, track daily generation, and is often required for warranty claims.
Yes, earthing is absolutely mandatory for solar installations. As per IS 3043 standard and UPNEDA guidelines, every solar system must have at least two earthing points: one for the solar panel mounting structure and one for the inverter/electrical system. Proper earthing protects against electric shock, lightning damage, and voltage surges. It also ensures your system passes the DISCOM inspection required for net metering approval.
DCDB (DC Distribution Box) is installed between the solar panels and the inverter on the DC side. It contains DC MCBs, DC SPDs (surge protection devices), and DC isolators to protect against DC faults. ACDB (AC Distribution Box) is installed between the inverter and the main electrical panel on the AC side. It contains AC MCBs, AC SPDs, and an AC isolator. Both are essential safety components that protect your system from short circuits, surges, and lightning damage.
A lightning arrester (SPD Type 1 or Type 2) is highly recommended if your building is the tallest structure in the area, your panels are on an elevated or open terrace, or your area is prone to thunderstorms. In UP, especially during the monsoon season (July-September), lightning strikes can damage expensive inverters and panels. A Type 2 SPD costs Rs 2,000-5,000 and can save you from damages worth lakhs.
Still have questions?
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