Starlink Engineering - Comprehensive Solutions

Benefits of Rooftop Solar for Factories in Bangladesh

As energy costs continue to rise and environmental pressures increase, factories across Bangladesh are turning to rooftop solar systems as a smart, sustainable solution. Whether you're in textiles, manufacturing, or food processing, installing solar panels on your factory roof can bring measurable advantages — both economically and operationally.

1. Drastic Reduction in Electricity Bills

One of the biggest advantages of rooftop solar is the immediate reduction in utility expenses. With systems ranging from KWp to MWp or more, factories can generate a significant portion of their daytime electricity directly from the sun. For example, a 500 kWp system can produce 50,000–60,000 KWh/month, reducing grid / captive dependency and slashing electricity costs by 30–60%.

2. Utilize Unused Rooftop Space

Most industrial facilities in Bangladesh have large, flat rooftops that remain underutilized. By installing solar panels:

You're turning idle space into a power-generating asset
No additional land acquisition or structural change is required
Roof-mounted solar also provides partial shade, reducing internal heat gain

3. Improve Environmental Compliance & Branding

As global buyers and regulatory agencies push for cleaner supply chains, rooftop solar enhances your sustainability credentials:

Reduces carbon emissions by 500–1,000+ tons/year (for 500 kWp+ systems)
Helps meet ESG, LEED, or green factory standards
Strengthens your brand image with clients and investors

4. ROI Within 3–4 Years (or Less)

The falling price of solar panels and government incentives (like net metering) have made solar incredibly cost-effective:

Typical ROI is 3–4 years, with free power for 20+ years afterward
OPEX or PPA models available for zero upfront investment
Government VAT exemption and IDCOL financing can further reduce payback time

5. Reliable Backup During Grid Outages

Rooftop solar can be coupled with battery storage or existing diesel generators to provide reliable backup power:

Reduces DG runtime and fuel consumption
Enhances energy resilience for critical operations

6. Low Maintenance, High Reliability

Solar systems require minimal upkeep — typically 2–4 service visits per year:

Panel cleaning, inverter health checks, string monitoring
Long warranties: 25 years for modules, 5–10 years for inverters

Partnering with experienced EPC firms ensures hassle-free installation and after-sales support.

Why Now?

With net metering enabled across Bangladesh and energy prices expected to rise further, 2025 is the ideal time for factory owners to go solar. The earlier you switch, the sooner you lock in long-term savings and sustainability benefits.

Ready to Go Solar?

At Starlink Engineering, we offer turnkey rooftop solar solutions:

Detailed technical assessment
CAPEX & OPEX/PPA options
Engineering, procurement, installation & O&M
Grid integration and net metering support

Solar CAPEX Owner's Checklist: What Documents You Must Collect

So, you’ve decided to go solar under the CAPEX model — meaning you’re investing in the system and will own the assets from Day 1. Great move! But your responsibility doesn’t end with signing the work order. To protect your investment and ensure smooth operations for the next 20+ years, you must demand a full documentation package from your Solar EPC provider.

This guide walks you through everything a CAPEX solar owner in Bangladesh should collect — before, during, and after installation.

1. Project Proposal & Technical Drawings

Before installation begins, request:

Detailed technical proposal with capacity, component specs, layout design, and expected monthly generation
3D/2D layout drawings showing panel placement, inverter location, and electrical connections
Shadow analysis and performance simulations (e.g., PVsyst or Helioscope reports)

These give you a benchmark to evaluate future performance and inspect workmanship.

2. Contracts & Warranties

Make sure you get:

Signed contract/agreement outlining payment schedule, scope of work, timeline, and penalties
Product warranty certificates:
- PV Modules: 25 years
- Inverters: 5–10 years
- Structure: 10–20 years
Workmanship warranty from EPC (usually 1–2 years)

Insist on original manufacturer documents, not just local PDFs.

3. As-Built Drawings & System Configuration

After commissioning, the EPC must provide:

Final as-built drawing (single-line diagram or SLD)
Bill of Materials (BoM) with brand, model, quantity of each component
Commissioning report with inverter settings, system voltage, string configuration

This ensures any future technician can service the system without guesswork.

4. Net Metering & Grid Approval Documents

Ask your EPC for:

Grid connection application and approval letter from utility (e.g., DESCO, DPDC, PDB)
Net metering agreement
Updated meter reading with baseline

Tip: If net metering isn’t finalized, request their commitment in writing.

5. Monitoring & Login Credentials

For systems with smart inverters (e.g., Huawei, Sungrow), demand:

Monitoring portal access (e.g., FusionSolar, SolarEdge, Solarman)
Admin-level login credentials
Mobile app and user training

Monitoring is your first line of defense against performance drop or system failure.

6. Operation & Maintenance (O&M) Manual

Get a full O&M manual including:

Cleaning schedule & procedure
Inverter error code guide
Contact info for post-sales support
Emergency shutdown steps

You can request a 1-year O&M contract or choose to train your internal team.

7. Compliance & Safety Certifications

Make sure the system is built to code:

Structural safety certificate (for rooftop installations)
Electrical inspection/test report
Fire and lightning protection compliance

These are essential for insurance, audits, and future upgrades.

BONUS: Keep a Soft & Hard Copy Folder

Store all files both digitally (on Google Drive or OneDrive) and physically in a labeled binder:

Work order
Payment invoices
Warranty cards
Drawings
O&M guide
Certificates

A well-documented solar project means peace of mind, better resale value, and hassle-free maintenance.

Solar is Long-Term — Get Your Paperwork Right

At Starlink Engineering, we empower our CAPEX clients with:

Transparent documentation
Grid support and approval assistance
Dedicated after-sales service team
Smart monitoring setup with training

Reach us at info@starlinkengineering.com Or call us to speak with a solar project advisor.

No	Activity	Reduction Target	Base Figure (Year)	Reduction Plan	Tracking Indicator
1	Fuel Consumption though rented transport vehicles	8% reduction by end of the year 2023	2022	Use CNG/LPG based vehicle. Use public transport. Encourage walking and biking.	We use tools by normative.io to calculate the emissions
2	Electricity consumed	8% reduction by end of the year 2024	2022	Replace old lights with LED lights. Run AC at 25 Deg Celcius. Replace old AC with R410 coolant AC.	We use tools by normative.io to calculate the emissions
3	Upstream transportation and distribution	8% reduction by end of the year 2025	2022	Use CNG/LPG based vehicle. Use public transport. Encourage walking and biking.	We use tools by normative.io to calculate the emissions
4	Employee Commuting	8% reduction by end of the year 2026	2022	Use CNG/LPG based vehicle. Use public transport. Encourage walking and biking.	We use tools by normative.io to calculate the emissions
5	Purchased goods and services	8% reduction by end of the year 2027	2022	Select energy efficient products with an “A” label. Limit and recycle the waste. Make sure to buy only what is needed to avoid waste. Bring reusable shopping bags and avoid products with excessive plastic packaging.	We use tools by normative.io to calculate the emissions

Activity

Reduction Target

Base Figure (Year)

Reduction Plan

Tracking Indicator

Fuel Consumption though rented transport vehicles

8% reduction by end of the year 2023

2022

Use CNG/LPG based vehicle. Use public transport. Encourage walking and biking.