In electricity billing, 1 unit is equal to 1 kilowatt-hour (kWh).

 In electricity billing, 1 unit is equal to 1 kilowatt-hour (kWh). Therefore, 1 unit of electricity equals 1 kWh, representing 1,000 watts of power used over one hour. To calculate units from appliance power, divide total watt-hours by 1,000. 

Formula: 

Example: A 1,500-watt appliance used for 1 hour consumes 1.5 units (1.5 kWh).

Monthly Calculation: 

Key Conversion Details

1 Unit = 1 kWh (Kilowatt-hour).

1 kWh = 1,000 Watt-hours.

3.6 Joules = 1 kWh. 

The price per unit (kWh) of electricity generated from Greenko solar plants varies based on the specific project, location, and date of the Power Purchase Agreement (PPA), generally ranging from Rs 2.64 to Rs 6.70 per unit. 

Key Tariff Details:

Weighted Average Tariff: Recent reports indicate a weighted average tariff of around Rs 4.70 - Rs 4.80 per unit for their operational portfolio.

Specific Projects:

Andhra Pradesh (Dharmavaram): Revised to Rs 3.74 per kWh (first year, with 3% escalation up to 10th year).

Telangana (Medak): Rs 6.70 per kWh (long-term PPA).

SECI Projects: In 2020, Greenko won a 900 MW tender for storage-based projects with an off-peak tariff of Rs 2.70 per kWh and a higher rate for peak hours.

Regulatory Context: Some Andhra Pradesh projects faced efforts to renegotiate tariffs down to Rs 2.43-2.44 per unit, which were challenged by the company. 

Storage-Based Projects (Future Tariffs):

For upcoming integrated renewable energy storage projects (like the 5,230 MW project in Andhra Pradesh), the tariffs are designed to be competitive, often involving a combination of solar and storage components, ensuring a reliable, higher-value supply.