Commercial Solar for Factories: Complete Savings Analysis

Industrial and commercial electricity consumers in India pay some of the highest electricity tariffs — often ₹8–14 per unit including demand charges. This makes solar energy an exceptionally compelling investment for factories, warehouses, and manufacturing units. Here's a detailed look at how commercial solar works and the savings you can realistically expect.

Case Study: 300kW Factory in Pune

A manufacturing unit in Pimpri-Chinchwad, Pune (electronics components manufacturer) approached Techera Solar in early 2024 with a monthly electricity bill of ₹4.2 lakh.

Problem: Rising electricity costs were eating 18% of their operating costs. Three tariff hikes in 2 years had added ₹80,000/month to their utility bill.

Solution: Techera Solar designed and installed a 300kW rooftop solar system on their 28,000 sq ft factory roof.

System Specs:

• ✓750 × 400W Waaree solar panels
• ✓3 × 100kW three-phase string inverters (SMA)
• ✓Hot-dip galvanized MS mounting structure
• ✓Real-time IoT monitoring system
• ✓Net metering with MSEDCL

Results After 12 Months:

• ✓Annual generation: 4,20,000 units
• ✓Electricity cost reduction: ₹24.5 lakh/year
• ✓Grid import reduction: 78%
• ✓CO2 offset: 340 tonnes/year
• ✓Payback period: 4.2 years (after 40% accelerated depreciation benefit)

How Commercial Solar Savings Work

1. Direct Electricity Bill Reduction

The most obvious saving — solar panels generate electricity during working hours (8 AM–6 PM), which perfectly aligns with factory operations. Every unit generated directly replaces grid electricity at ₹8–12/unit.

300kW system generating 1,200 units/day × ₹10/unit = ₹12,000/day savings

2. Accelerated Depreciation (40%)

This is a huge, often-overlooked benefit. Under Section 32 of the Income Tax Act, commercial and industrial solar systems qualify for 40% accelerated depreciation in Year 1.

For a ₹1.2 crore solar installation:

• ✓40% depreciation = ₹48 lakh deduction
• ✓At 30% tax bracket: ₹14.4 lakh tax saving in Year 1
• ✓**Effective net cost: ₹1.2 crore − ₹14.4 lakh = ₹1.06 crore**

3. GST Input Credit

Businesses can claim 12% GST paid on solar panels and installation as input tax credit, further reducing effective cost.

4. Demand Charge Reduction

Large consumers pay "demand charges" based on peak kW consumption. A well-designed solar system can reduce peak demand from the grid, cutting demand charges by 20–40%.

ROI Calculator for Commercial Solar

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Note: After 40% depreciation benefit, effective payback reduces to 2.5–3.5 years

Is Your Factory Roof Suitable for Solar?

You need:

• ✓Minimum 8–10 sq ft of shadow-free roof per kW of solar
• ✓Roof structure capable of bearing 25–35 kg/sq m additional load (Techera Solar conducts a free structural assessment)
• ✓Preferably flat RCC roof or trapezoidal sheet metal roof

Most industrial sheds in MIDC areas and industrial estates in Nagpur, Pune, and Mumbai are excellent candidates for solar.

Techera Solar's Commercial Process

1. Free energy audit — analysis of your electricity bills and consumption pattern

2. Site survey & structural assessment — roof measurement, shading analysis, load study

3. Custom design — 3D simulation, single-line diagram, ROI report

4. Turnkey installation — panels, inverters, mounting, wiring, monitoring

5. DISCOM approvals & net metering — we handle all paperwork

6. Operations & maintenance — optional AMC for worry-free performance

Why Choose Techera Solar for Commercial Projects?

• ✓150+ MW commercial and industrial solar installed across Maharashtra
• ✓Certified electrical engineers for industrial HT/LT integration
• ✓Partnerships with SIDBI for solar financing (EMI options)
• ✓Performance guarantee — if system underperforms our projection by >5%, we compensate

Ready to cut your factory's electricity costs by 70%? Call Techera Solar at +91 96238 13120 or email contacts@techerasolar.com for a free commercial solar assessment.