A 1 MW (1,000 kWp) solar power plant is increasingly viewed by C&I businesses as part of a broader energy strategy. Rising grid tariffs, growing electricity demand, and ESG and decarbonisation goals are prompting organisations to evaluate solar not only as a sustainability initiative, but as a long-term energy cost management tool.
At Gentari, we work with C&I customers to design, implement, and operate solar plants aligned with their load requirements, site conditions, and commercial priorities. The objective is to reduce grid dependence, improve cost visibility, and support sustainability targets through structured energy planning.
This guide outlines the key aspects decision-makers typically evaluate: technology, design, energy output, costs, battery integration, investment models, and operations.
How a 1 MW solar plant works
A 1 MW solar plant converts sunlight into electricity using photovoltaic (PV) technology.
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Solar panels absorb sunlight and generate direct current (DC)
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Inverters convert DC to alternating current (AC) for facility use
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System design, including layout, tilt, orientation, and spacing, influences how effectively sunlight is captured throughout the year
At Gentari, plant design is informed by irradiation data, shading analysis, and site-specific simulations. This helps align expected energy output with business needs and financial assumptions.
Energy generation and performance
A 1 MW ground-mounted plant in India may generate approximately:
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Daily: 4,000 – 4,800 kWh
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Monthly: 1,20,000 – 1,44,000 kWh
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Annually: 14,40,000 – 17,28,000 kWh
Actual output depends on location, weather patterns, system design, and maintenance practices.
This energy can cover a significant share of on-site electricity demand. In some cases, surplus energy may be exported to the grid through net metering or open-access arrangements, subject to local regulations.
Battery integration: Extending the value of solar
Adding battery storge changes how solar energy can be used. Batteries store excess daytime generation and make it available during other periods, depending on system design and operating strategy.
Potential benefits include:
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Improved supply continuity: Storage can support critical loads during grid disturbances, depending on system configuration.
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Peak load management: Stored energy can be used during higher-tariff periods to help manage electricity costs.
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Energy time-shifting: In markets with time-of-day pricing, storage can support more strategic energy use.
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Reduced grid dependence: Storage may lower reliance on grid power, though full independence is uncommon for most C&I sites.
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Higher renewable utilisation: More solar generation can be used on-site instead of curtailed.
Technical considerations for battery integration
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Battery type: Lithium-ion batteries are commonly used due to energy density, efficiency, and operating characteristics
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Capacity planning: Sized based on load profile, backup needs, and operating priorities
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Integration: Hybrid inverters or energy management systems coordinate interactions between solar, batter and grid
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Cost impact: Storage increase upfront project costs but may improve operational flexibility and cost management over time
Gentari assesses battery integration based on site load behaviour, risk profile, and financial objectives.
Types of 1 MW Solar Plants
1. On-Grid
Connected to the grid, often with net metering or open-access mechanisms. Grid power supplements solar generation when needed. Suitable for sites with stable supply.
2. Off-Grid
Designed to operate without a permanent grid connection, typically with storage and backup systems. Used mainly in remote or weak-grid locations. System sizing and cost considerations are significant.
3. Hybrid
Combines grid connection with battery storage. Allows solar use, storage-based load support, and grid interaction. Often selected where reliability and load management are priorities.
Investment models
1. CAPEX (ownership)
The business funds the project upfront and owns the asset. Electricity costs are primarily related to operations and maintenance after commissioning. Payback depends on tariffs, load profile, and system design.
2. OPEX / PPA
A developer or financing partner installs and owns the plant. The customer pays a per0unit tariff for solar energy over an agreed term. This reduces upfront capital requirements while providing access to renewable power under a structured contract.