Preparing engineering data...
Preparing engineering data...

OPEX SOLAR · POWER PURCHASE AGREEMENT
Adopt rooftop solar through a long-term power purchase agreement, with no upfront solar-system investment under the applicable contract.
Understanding the Renewable Energy Service Company (RESCO) Framework
The OpEx model transitions rooftop solar from a high-stakes capital expenditure into a streamlined operational utility expense. An external developer acts as the investor and asset owner, leasing your rooftop area to generate and supply solar power directly behind your facility meter.
From certified structural rooftop audit to grid synchronization and continuous cloud SCADA performance tracking.

Our licensed civil and structural engineers conduct detailed load-bearing assessments, wind-load simulation (up to 200 km/h), and 3D PVSyst shadow analysis to verify roof suitability.
Industrial Value Drivers
Transform unpredictable grid operating expenses into lower, predictable utility power bills without adding debt to your corporate balance sheet.
Conserve valuable cash reserves and corporate credit limits for core manufacturing machinery, raw material procurement, or factory expansion rather than ancillary power assets.
Hardware degradation, inverter failures, replacement costs, and weather-related underperformance risks are borne by the developer, whose revenue depends directly on maximizing kilowatt-hour yield.
Secure a fixed or predictable solar tariff between BDT 8.50 and 10.50 per kWh, creating an immediate discount against commercial and industrial grid tariffs (BDT 12.00 to 14.50/kWh).
Insulate your operational balance sheet from recurrent BERC gas and electricity price increases through predetermined, contracted tariff escalation caps over 15 to 20 years.
Because the solar installation is owned by a third-party entity, no asset depreciation or project debt appears on your corporate balance sheet, preserving borrowing capacity.
Satisfy strict clean-energy mandates from European and North American buyers (LEED certification, Higg Index, Science Based Targets) without allocating capital funds.
Contractual Boundaries
A transparent division of operational scope ensures seamless long-term plant uptime without unforeseen engineering liabilities.
PPA Economics & Tariff Sizing
PPA tariffs are typically structured as either a Levelized Flat Tariff (constant rate across the term) or an Indexed Discount Tariff (maintaining a constant 15%–25% discount below prevailing utility industrial tariffs).
Subject to roof size, insolation profile, and off-taker financial creditworthiness.
Prevailing DESCO / DPDC / BREB industrial E-category utility rates.
Estimated annual savings per installed MWp, varying by factory operating hours.
Contractual valuation schedule allowing purchase at depreciated asset value.
Underwriting & Viability
Because clean energy developers invest 100% of the project capital, installations must meet engineering and credit thresholds to ensure bankability.
Minimum 25,000 sq. ft. of shadow-free, structurally sound rooftop area (supports ~250 kWp+ minimum viable capacity).
Minimum 300 kVA sanctioned load with a dedicated or shared utility distribution transformer.
Daytime-intensive manufacturing schedule (minimum 6 days/week operation) to ensure high captive solar consumption.
Audited financial stability, clean CIB record, and verifiable operating history (minimum 3–5 years in business).
Clear title or long-term lease agreement on the premises exceeding the intended PPA contract duration.
Statutory Protections & Net Metering
All OpEx installations deployed by Greenery EPC and its funding partners adhere strictly to the Ministry of Power, Energy and Mineral Resources regulatory regime.
Provides statutory recognition for third-party RESCO PPA models up to 5 MW, guaranteeing developer asset ownership rights and streamlined utility approvals.
Permits AC capacity sizing up to 100% of sanctioned electrical load, allowing export of surplus holiday/weekend generation to maximize project economics.
Enables certified RESCO developers to access IDCOL 10-year debt financing at 5.0%–5.5% fixed interest (tied to 50%–75% bank guarantees), keeping long-term PPA tariffs competitive for industrial off-takers.
SREDA's national private participation policy providing standardized rooftop leasing rights and commercial power generation guidelines for third-party solar developers.
Proven Bangladesh Track Record
Representative commercial installations demonstrating large-scale solar energy off-take in Bangladesh.
National industry benchmark. Implemented by Joules Power Limited (JPL) under an OPEX/rooftop leasing model with a long-term PPA, financed via IDCOL concessionary debt. Directly reduces daytime grid demand with zero corporate debt for the off-taker.
National industry benchmark. Installed under a 20-year Power Purchase Agreement (PPA / OpEx model) by Omera Renewable Energy Ltd for Beximco Group, generating ~10.78 GWh of clean electricity annually and cutting over 7,200 tonnes of CO2 per year.
Commercial, Maintenance & Financial Clarity
Direct Ownership vs Third-Party PPA
Direct asset ownership delivering maximum 25-year financial ROI and full net-metering revenue retention.
Comprehensive financial and operational comparison matrix to determine the optimal model for your facility.
Schedule a complimentary technical roof inspection and obtain an indicative PPA tariff proposal tailored to your factory's electrical consumption profile.