1. Project Name:

• Purpose: A unique identifier for the solar project.
• Example: “Rooftop Solar Project – ABC Building”

2. Total Roof Area:

• Purpose: The total area of the roof, including all sections.
• Unit: Square meters (sq. m)

3. Sanctioned Load:

• Purpose: The maximum electrical load permitted by the electricity distribution company.
• Unit: Kilovolt-amperes (kVA)

4. Roof Type:

• Purpose: Specifies the type of roofing material.
• Example: RCC and Metal

5. Roof Area For Solar:

• Purpose: The usable area of the roof for solar panel installation, considering obstructions, shading, and safety margins.
• Unit: Square meters (sq. m)

1. Discom Provider:

• Purpose: Specifies the electricity distribution company (DISCOM) responsible for supplying power to the location.
• Example: Uttar Pradesh (Urban), Maharashtra State Electricity Distribution Co. Ltd. (MSEDCL), etc.

2. Discom Provider Type:

• Purpose: Indicates the type of electricity consumer (residential, commercial, industrial, etc.)
• Example: Domestic, Commercial, Industrial, Agricultural, etc.

3. Monthly Unit:

• Purpose: Indicates the current monthly electricity consumption of the consumer.
• Unit: Units (kWh)

4. Per Unit Electricity Rate:

• Purpose: Specifies the cost of electricity per unit (kWh) charged by the DISCOM.
• Unit: INR (Indian Rupees)

A solar plant reduces carbon dioxide emissions through clean energy production. On average, each unit of solar energy prevents 0.7 kg of CO2 emissions and is equivalent to planting of 2 trees.

• Annual CO2 Reduction: To estimate CO2 reduction, we need to make assumptions about the grid’s carbon emission factor. Let’s assume a typical value for India of 0.8 kg CO2/kWh.

  • Annual CO2 Reduction = Annual Energy Generation (kWh) x Grid Carbon Emission Factor (kg CO2/kWh)
  • Annual CO2 Reduction = 26280 kWh/year * 0.8 kg CO2/kWh = 21024 kg CO2/year = 21.02 tons/year

• Lifetime Tree Planting Equivalent:

  • This is a qualitative comparison. Let’s assume a conservative estimate of 1 tree offsetting 1 ton of CO2 per year over its lifetime.
  • Lifetime Tree Planting Equivalent = Annual CO2 Reduction / Tree Carbon Sequestration Rate
  • Lifetime Tree Planting Equivalent = 21.02 tons/year / 1 ton CO2/tree/year ≈ 21 trees

The “cost of project” refers to the total expenses associated with planning, designing, procuring materials, installing, and commissioning a solar energy system.

• Recommended Project Capacity: 20 kWp (Given)
• Max Plant Capacity: 265 kWp (This value might be based on roof area limitations)
• Est. Total Cost of Project:
  
  • System Cost = Sanctioned Load (kWp) x Module Cost (INR/Wp)
  • System Cost = 20 kWp x ₹40/Wp = ₹800,000

Total Electricity Generation is the overall amount of electrical energy produced within a specific time period, typically measured in megawatt-hours, reflecting the aggregate output from various power sources.

• Monthly Generation (as per usable roof area): This would depend on the actual usable roof area and the solar irradiance at the location. Let’s assume a monthly generation of 27909.86 kWh/month as given in the image.

• Annual Generation (as per usable roof area):

  • Annual Generation = Monthly Generation x 12 months
  • Annual Generation = 27909.86 kWh/month x 12 months = 334918.32 kWh/year

• Monthly Generation (as per sanctioned load): This would depend on the actual energy generation of the installed system. Let’s assume a monthly generation of 1741.75 kWh/month as given in the image.

• Annual Energy Generation: Assuming a capacity factor of 15% for the 20 kWp system:

  • Annual Energy Generation = System Capacity (kWp) x Capacity Factor (%) x 24 hours/day x 365 days/year
  • Annual Energy Generation = 20 kWp x 0.15 x 24 hours/day x 365 days/year = 26280 kWh/year

• Annual Generation (as per sanctioned load):

  • Annual Generation = Monthly Generation x 12 months
  • Annual Generation = 1741.75 kWh/month x 12 months = 20901 kWh/year

Financial savings refer to the surplus or leftover funds that result from reducing expenses or increasing income, leading to a positive difference between income earned and money spent over a specified period.

• Monthly Gross Saving/Net Saving:

  • Monthly Gross Saving = Monthly Energy Generation (kWh) x Per Unit Electricity Rate (INR/kWh)
  • Monthly Gross Saving = 1741.75 kWh/month x ₹8.01/kWh = ₹13961.38/month
  • Monthly Net Saving = Monthly Gross Saving - Monthly O&M Cost
  • Monthly Net Saving = ₹13961.38/month - (20 kWp x ₹0.5/Wp/year / 12 months) = ₹13961.38/month - ₹8.33/month = ₹13953.05/month

• Annual Savings:

  • Annual Savings = Monthly Net Saving x 12 months
  • Annual Savings = ₹13953.05/month x 12 months = ₹167,436.60/year

• Lifetime Savings (25yrs):

  • Lifetime Savings = Annual Savings x Project Lifetime
  • Lifetime Savings = ₹167,436.60/year x 25 years = ₹4,185,915

• Payback Period:

  • This requires a more detailed financial model considering debt servicing, equity returns, and cash flows.

• Pre-tax IRR:

  • This also requires a detailed financial model and cannot be easily calculated with the limited information provided.