Pentagreen Capital, Candi Solar Sign $50 Million Financing Partnership for 400 MW Solar and BESS Projects in India
Financial structure and EPC engineering analysis of the $50 million partnership between Pentagreen Capital and candi solar to deploy 400 MW solar & BESS in India.
AUTHOR:Ultrathon Financial Practice & Market Intelligence Desk
In a landmark cross-border sustainable debt transaction targeting India's commercial and industrial (C&I) energy transition, Singapore-based blended finance catalytic debt platform Pentagreen Capital (established jointly by HSBC and Temasek) has closed a US$50 million (approximately ₹420 crore INR) non-recourse project debt facility with clean energy developer candi solar. The capital injection is designated to finance the engineering, procurement, construction, and long-term asset management of up to 400 MWp of decentralized rooftop solar, open-access ground arrays, and collocated Battery Energy Storage Systems (BESS) across tier-1 and tier-2 manufacturing clusters in India.
The financing facility operates under an innovative off-balance-sheet Special Purpose Vehicle (SPV) portfolio structure, allowing candi solar to scale its Power Purchase Agreement (PPA) and energy-as-a-service offerings without encumbering corporate balance sheets. Under these bilateral long-term contracts (typically 15 to 20 years), creditworthy industrial offtakers in automotive, pharmaceuticals, chemicals, and precision textiles procure firmed clean power with zero upfront capital outlay, securing immediate power cost savings of 20% to 35% compared to prevailing state distribution grid tariffs.
Commercial Parameter
Financing Term
Structural Mechanism
Strategic Impact
Total Debt Facility
US$50 Million (~₹420 Crore)
Multi-currency non-recourse senior secured debt
Catalyzes blended private institutional capital into Indian C&I clean power
Portfolio Deployment Target
400 MWp Solar + Collocated BESS
Decentralized rooftop & industrial park open access
Displaces ~550,000 metric tons of CO2e annually across industrial supply chains
Contract Tenor & Structure
15 to 20 Years Bilateral PPAs
Zero-CAPEX Energy-as-a-Service model for offtakers
Guaranteed tariff discount of 20%–35% against DISCOM industrial tariffs
Storage Integration Scope
Peak-shaving & Power Quality BESS
Liquid-cooled LFP containerized modular batteries
Mitigates Time-of-Day (ToD) penalties and eliminates diesel genset usage
2. Sector Market Dynamics: C&I Energy Arbitrage & Sovereign Tariff Pressure
India's Commercial and Industrial power sector accounts for more than 50% of total national electricity consumption, while enduring cross-subsidized retail electricity tariffs ranging from ₹7.80 to ₹11.50/kWh across industrialized states such as Maharashtra, Gujarat, Tamil Nadu, and Haryana. In parallel, State Electricity Regulatory Commissions (SERCs) have increasingly enforced punitive Time-of-Day (ToD) pricing regimes, imposing surcharges of 20% to 30% during evening peak demand periods between 18:00 and 23:00.
This pricing structure creates a compelling commercial rationale for solar-plus-storage integration. By pairing on-site rooftop or open-access solar arrays with containerized battery storage, industrial facilities can charge during solar peak generation hours (11:00 to 15:00) when grid energy or captive solar marginal costs are lowest, and discharge during evening peak windows. This demand management strategy clips contractual Maximum Demand (MD) charges, avoids steep ToD tariff surcharges, and provides uninterrupted emergency power during localized distribution grid voltage sags.
3. Technical Architecture for Industrial Solar-Plus-Storage Facilities
The technical architecture deployed across candi solar's 400 MW portfolio emphasizes high-reliability, modular, and containerized hardware designed for industrial operating environments. Solar arrays utilize high-efficiency N-type TOPCon bifacial modules (585Wp+) mounted on elevated roof purlins and ballasted structures engineered to resist 160 km/h wind gusts compliant with IS 875. Inverter stations utilize decentralized 250kW+ string inverters with multiple MPPT trackers to optimize generation across complex industrial roof geometries with localized shadowing.
The collocated BESS installations utilize modular 500 kWh to 2,000 kWh outdoor IP55 enclosures housing Lithium Iron Phosphate (LFP) cells. Direct liquid cooling circuits restrict internal cell temperature gradients to under 2.0°C, ensuring multi-cycle daily dispatch without premature cell degradation. The Balance of Plant interfaces with the industrial consumer's internal 415V or 11kV busbar via bidirectional four-quadrant PCS inverters equipped with sub-cycle static transfer switches (STS) and intelligent Energy Management Systems (EMS) that autonomously execute peak shaving, power factor correction, and diesel generator synchronization protocols.
Executing solar-plus-storage across operational factory sites imposes rigorous engineering constraints. Industrial manufacturing facilities cannot tolerate operational shutdowns; hence, EPC contractors must execute structural roof reinforcement, medium-voltage cable trenching, and substation interconnections during scheduled factory maintenance turnarounds. Roof load assessments must verify structural dead-weight bearing capacities, incorporating seismic bracing and non-penetrative mounting to protect warranty coverage on pre-engineered building (PEB) roofs.
Statutory permitting requires strict compliance with the Chief Electrical Inspector to Government (CEIG) and state fire department guidelines. Battery container installations require dedicated concrete plinths with 2-hour fire-rated physical separation from factory buildings, automated aerosol or Novec 1230 gas flooding fire suppression compliant with NFPA 855, and chemical earthing grids maintaining ground resistance below 1.0 ohm. Zero-export protection relays must be calibrated to satisfy DISCOM interconnection guidelines for grid-connected captive installations.
5. Strategic Implications for Indian IPPs, Corporate Offtakers & EPC Integrators
The $50 million commitment from Pentagreen Capital validates the institutional bankability of distributed solar-plus-storage in India. Blended finance models that leverage multilateral development capital to de-risk commercial debt are unlocking massive institutional liquidity, creating a clear blueprint for scaling non-recourse infrastructure financing across emerging markets.
For corporate offtakers, partnering with established solar-storage developers allows manufacturing enterprises to insulate their operations against long-term grid tariff increases while accelerating Scope 1 and Scope 2 decarbonization targets. For specialized EPC contractors, the rapid expansion of the C&I BESS sector offers high-margin engineering opportunities across balance-of-plant construction, medium-voltage grid synchronization, and multi-year performance monitoring wraps.
What are the terms of the Pentagreen Capital and candi solar partnership?
Pentagreen Capital has committed a US$50 million non-recourse project debt facility to candi solar to fund the construction and operation of up to 400 MWp of decentralized solar and BESS assets across India under long-term commercial PPAs.
How do commercial and industrial (C&I) consumers benefit from this financing model?
Industrial offtakers procure clean power with zero upfront capital investment under 15–20 year PPAs, securing 20% to 35% savings on electricity costs compared to standard grid tariffs while eliminating reliance on diesel backup generators.
What technical role does BESS perform in commercial solar installations?
BESS performs active peak shaving, absorbs excess midday solar generation, discharges power during expensive evening Time-of-Day (ToD) tariff windows, stabilizes facility power factor, and provides sub-cycle seamless emergency power backup.
What statutory clearances are mandatory for industrial BESS installations in India?
Projects require CEIG drawing and physical energization approvals, state fire department NOCs compliant with NFPA 855 clean agent fire suppression, and DISCOM grid connectivity permits with verified zero-export reverse power protection.
How does Ultrathon Electric support industrial consumers and developers in solar-plus-storage?
Ultrathon Electric provides turnkey EPC delivery, structural engineering audits, single-line diagram (SLD) development, CEIG statutory approval management, and smart Energy Management System (EMS) commissioning for industrial clean energy assets.
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Whether you are an IPP bidding for SECI / State DISCOM storage tenders or a large-scale commercial consumer requiring peak shaving and power backup, Ultrathon Electric provides end-to-end BESS EPC execution and Owner's Engineer advisory.
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