Ganesh Chaturthi glyphToday · Ganesh ChaturthiWishing all users of Growthifye a very happy Ganesh Chaturthi and a joyous new beginning!गणेश चतुर्थी की हार्दिक शुभकामनाएं! बप्पा आपके जीवन में खुशियाँ लाएं।Growthifyegrowthifye
RE & Storage Advisory
Landmark project · India · Pumped hydro + RE

Pinnapuram Integrated RE Storage Project

1.68 GW pumped storage + 3 GW solar/windKurnool, Andhra Pradesh

The world's largest integrated renewable-plus-pumped-storage project — the blueprint for firm, dispatchable RE (FDRE) at utility scale.

Footage · AP Infra Story · YouTube

Key numbers

1.68 GW

Pumped storage capacity

One of the largest single pumped-hydro schemes under construction globally

approx. 3 GW

Integrated RE capacity

Solar and wind paired to charge storage and firm supply

approx. 8-10 hrs

Storage duration

Enables evening/peak and round-the-clock dispatch

approx. USD 3 bn

Estimated investment

Funded via mix of equity, sovereign/pension capital, debt

approx. 10,000 acres

Land footprint

Reservoirs, solar/wind fields and evacuation corridor

NTPC RTC deal

Anchor offtake

Long-term round-the-clock renewable supply agreement

Timeline
  1. 2019

    Greenko conceives integrated pumped-storage-plus-RE model at Pinnapuram, Kurnool district, Andhra Pradesh.

  2. 2020

    Construction of pumped hydro civil works and reservoirs begins; approvals secured from state and central agencies.

  3. 2021-22

    Large equity infusions from global investors (including sovereign and infrastructure funds) close, anchoring project financing.

  4. 2022

    NTPC signs long-term agreement with Greenko for round-the-clock renewable supply, validating the FDRE offtake model.

  5. 2023

    First pumped-storage units and associated solar/wind capacity begin phased commissioning and grid synchronisation.

  6. 2024

    Progressive scale-up continues toward full 1.68 GW storage and 3 GW RE integration, with additional capacity tied to national FDRE tenders.

Why it matters

Pinnapuram is the world's first project to co-locate multi-GW pumped-hydro storage with solar and wind at this scale, designed to deliver firm, round-the-clock renewable power. For Indian developers, lenders and utilities it is the reference case for FDRE bids, hybrid land-water permitting, long-tenor project finance from sovereign and pension funds, and structuring PPAs that monetise storage as a grid service rather than just energy.

The India angle

Pinnapuram is shaping how CEA, CERC and state DISCOMs define FDRE tender norms, storage-linked ISTS waivers, and round-the-clock PPA formats. Developers bidding into SECI/state FDRE and standalone storage tenders should study its land-water clearance sequencing, hybrid grid connectivity approach, and blended sovereign-fund financing structure as a template for bankability at gigawatt scale.

What it teaches

Engineering, procurement and finance lessons

01

Storage must be sized to the resource, not the tender

Pumped-hydro capacity and reservoir head were engineered around actual local topography and RE generation profiles, not a generic MW figure. Developers should commission detailed hydrology and generation-correlation studies before locking storage size in bids, avoiding costly resizing later.

02

Land and water rights are the real critical path

Large upper/lower reservoirs and multi-GW solar-wind footprints require early, parallel-tracked state clearances for land, forest, water-use and rehabilitation. Sequencing these before financial close, rather than after, is what keeps such projects bankable on schedule.

03

FDRE offtake structures need new PPA language

Standard solar/wind PPAs do not capture storage value. The NTPC round-the-clock agreement shows the shift toward availability-based and time-block delivery contracts; Indian utilities and SECI/state tenders now need to standardise such formats for storage-backed RE.

04

Capital stack diversification de-risks scale

Financing multi-billion-dollar integrated projects required blending sovereign wealth, pension and infrastructure fund equity with domestic debt, reducing dependence on any single lender class. This template is replicable for other large Indian storage-RE hybrids.

05

Grid integration studies must precede capacity addition

Evacuation infrastructure and transmission augmentation were planned concurrently with generation and storage build-out, avoiding the stranded-capacity risk seen in earlier standalone RE parks.

Sources · Economic Times Energy · Mercom India · Press Information Bureau (PIB) · Business Standard · Reuters

How Growthifye helps
  • Structuring FDRE and storage-linked PPAs aligned with evolving CERC/SECI tender norms and offtake risk allocation.
  • Advising on integrated land, water and forest clearance sequencing for hybrid pumped-storage-RE sites.
  • Structuring blended capital stacks combining green debt, sovereign/pension equity and PPP frameworks for large storage-RE assets.

We use essential cookies to run the site and, with your consent, track your activity to personalise your learning and recommendations. See our Privacy Policy.