Maharashtra Launches 115 MW Floating Solar Project with Battery Storage

Maharashtra has taken a significant step toward expanding its renewable energy footprint with the Godavari Marathwada Irrigation Development Corporation (GMIDC) issuing an Expression of Interest (EOI) for a 115 MW floating solar project co-located with a battery energy storage system (BESS). The project, to be developed on reservoir waters in the Marathwada region, marks one of the more ambitious floatovoltaic tenders to emerge from Maharashtra in recent years and signals a deliberate policy push to harness underutilised water bodies for clean power generation. Floating solar is gaining traction across India as a space-efficient, water-conserving technology — panels mounted on reservoir surfaces reduce evaporation while generating electricity, making them particularly valuable in water-stressed regions like Marathwada. With India targeting 500 GW of renewable energy capacity by 2030 under its national clean energy commitments, projects like this GMIDC tender add critical megawatts while solving dual infrastructure challenges. The inclusion of co-located BESS is especially significant: storage integration ensures that solar generation can be dispatched reliably beyond daylight hours, directly addressing grid stability concerns that have historically slowed large-scale solar uptake in Maharashtra.

Why Is Marathwada Ideal for Floating Solar Development?

Marathwada — the eight-district region comprising Aurangabad (Chhatrapati Sambhajinagar), Beed, Latur, Osmanabad (Dharashiv), Nanded, Hingoli, Parbhani, and Jalna — is one of Maharashtra's most drought-prone zones, making it a counterintuitive but strategically sound location for floating solar. GMIDC manages a network of irrigation reservoirs across this region, and the corporation's decision to layer solar infrastructure on these water bodies reflects a growing national consensus: reservoir surfaces are some of India's most valuable untapped solar real estate. The National Institute of Solar Energy has previously estimated that India's total floating solar potential exceeds 280 GW across major water bodies. Marathwada's reservoirs, built primarily for agricultural irrigation, experience high evaporation losses during peak summer months — floating solar panels can reduce that evaporation by up to 70 percent, effectively protecting the very water resource the project depends on. This dual utility — power generation and water conservation — makes GMIDC's initiative a model that other state irrigation bodies across Rajasthan, Andhra Pradesh, and Tamil Nadu are watching closely.

From a grid connectivity standpoint, Marathwada has seen incremental improvements in transmission infrastructure, supported by Maharashtra State Electricity Transmission Company (MSETCL) upgrades. However, the region's historical dependence on rain-fed agriculture and thermal power from units like Parli and Paras has meant that renewable penetration has lagged behind western Maharashtra. A 115 MW project of this scale, paired with BESS, could meaningfully shift that balance, providing reliable baseload-equivalent power to local agricultural feeders and industrial consumers while reducing the region's dependence on coal-heavy grid supply.

How Does Co-located BESS Change the Economics of This Project?

The co-location of a battery energy storage system alongside the 115 MW floating solar array is the detail that elevates this tender from routine to transformative. Across India, renewable energy projects with integrated storage are increasingly favoured by state utilities and the Solar Energy Corporation of India (SECI) because they offer dispatchability — the ability to deliver power on demand rather than only when the sun shines. Maharashtra's State Load Despatch Centre (SLDC) has faced growing challenges balancing intra-day solar ramps, and BESS co-location directly mitigates this problem by storing excess afternoon generation and releasing it during evening peak demand hours. The Ministry of New and Renewable Energy (MNRE) has been actively pushing BESS integration through its Viability Gap Funding (VGF) scheme for battery storage, and projects like GMIDC's fit squarely within that policy framework. Nationally, India has set a target of 47 GW of energy storage — including 34 GW of pumped hydro and significant grid-scale battery capacity — by 2030. Maharashtra, as India's largest industrial state by GDP, carries an outsized responsibility in meeting that storage buildout.

For developers evaluating the EOI, the financial structure will be critical. Floating solar projects carry a capital expenditure premium of roughly 15–25 percent over ground-mounted systems due to specialised pontoon structures, underwater cabling, and corrosion-resistant mounting hardware. BESS adds further upfront cost. GMIDC will need to offer a power purchase agreement with sufficient tariff headroom — or leverage MNRE's VGF support — to attract credible bids from developers such as Adani Green Energy, ReNew Power, Greenko, or NTPC Renewable Energy, all of whom have demonstrated appetite for hybrid and storage-coupled solar projects in India.

What This Means for India's Energy Transition

GMIDC's 115 MW floating solar-plus-BESS tender is a small but telling indicator of how India's energy transition is maturing. The country added over 24 GW of solar capacity in 2024 alone, pushing its cumulative installed solar base past 90 GW, and is on track to cross 100 GW before the end of 2025. Yet the next phase of that transition — moving beyond ground-mounted utility-scale solar in Rajasthan and Gujarat toward diversified, storage-backed projects in water-stressed and land-constrained states — is where floating solar fits precisely. Maharashtra, with approximately 6 GW of installed solar capacity as of early 2025, has significant headroom to grow, and reservoir-based projects allow development without displacing agricultural land, a persistent social flashpoint in Indian solar development. The PM Surya Ghar scheme is already accelerating rooftop adoption; large-scale floating projects on public water infrastructure extend that logic to utility scale.

Watch for GMIDC's EOI response timeline and whether Maharashtra's MSEDCL agrees to off-take the project's output under a long-term PPA. The tenor of bids — particularly the tariff quotes from shortlisted developers — will serve as a real-world benchmark for floating solar-plus-storage pricing in peninsular India in 2025 and beyond. If the project reaches financial close efficiently, it could catalyse a pipeline of similar tenders from irrigation corporations in Andhra Pradesh, Telangana, and Karnataka, accelerating India's 500 GW renewable target with technology that saves water as it generates power.