Solar Hybrid Inverter for Cold Storage Application

Are you a cold storage owner, struggling with power supply interruptions? Are you spending exceedingly high on running your cold storage on diesel gensets, yet unable to derive optimal efficiency?

Are these challenges and unreasonably high energy costs affecting your profitability, making it difficult to thrive amidst the competitive and demanding business environment?

Then, this blog is just for you!

Solar hybrid inverter for cold storage

EnerTech, a leading name in India’s solar energy solutions, brings to you a game-changing innovation – the hybrid solar inverter exclusively designed to serve the energy and efficiency needs of cold storage!

Yes! You heard it right. With its phenomenal features, remarkable capabilities, and sustainable approach, EnerTech’s solar hybrid inverter can help resolve your energy concerns and contribute to profitability through massive cost savings in the long run.

Don’t believe us but our customers who’ve already installed our hybrid solar inverter and harnessing the power of solar optimally. Here’s more about how we can contribute to your success with our innovative solar hybrid inverter for cold storage solution.

Problems Cold Storage Operators Face

Interrupted electricity supply is a common concern in many countries, including India. While poor availability is one concern, the supply is highly intermittent. Besides, the quality also is miserable with harmonic distortions common in many places.

Running cold storage becomes highly challenging in such situations. The grid connection is 1.5 times more than normal, resulting in high costs and a higher price per unit. Since electricity supply isn’t as reliable, companies use diesel generators at a lower operating power, which refers to unit cost rising to up to Rs. 18-25.

Let’s look at the operating expenses for cold storage.

Electricity Costs

  • Through grid: 50%
  • Through diesel genset: 20%
  • Minimum electricity charges + administrative costs: 10%

Grid Connection Charges

  • DG set maintenance: 2%
  • Salaries and wages: 5%

Miscellaneous running expenses: 13%

Thus, the electricity cost contributes to 62% of the cold storage’s total operating cost.

So, here, the solution is distributed generation of electricity, which refers to becoming self-sufficient in electricity. Can a solar grid tie inverter serve the need? Let’s see.

Challenges in Using Solar Grid Tie Inverter

The answer to the above question is a potential no. Why? Here are some reasons.

  • Inverter Shutdown during Grid Outages: This issue arises from the anti-islanding feature inherent in all grid-tied inverters. In a power-deficient country like India, where the grid is unreliable and power interruptions are frequent, a Grid-Tie Inverter fails to provide electricity even when the sun is shining. 
  •  Inability to Ensure 24×7 Electricity: With no storage capacity, the Grid-Tie Inverter is only functional during daylight hours. Consumers are left without power during brownouts unless a DG Set is available.
  • Absence of Diesel Cost Savings: Daily operation of DG sets remains unchanged, resulting in no reduction in diesel costs and associated pollution. Additionally, the manual handling of Ammonia valves becomes necessary, as there is no provision for guaranteed uninterrupted power. 
  • Inefficient DG Utilization: Running DG sets on lower loads leads to carbon buildup and internal glazing, significantly reducing their lifespan and performance.

How Can a Solar Hybrid Inverter Help?

If a solar grid tie inverter cannot work or prove adequate, can a solar hybrid inverter work? Let’s see it through the following.

  • Solar hybrid inverters combine grid tie and storage. That eliminates the loss of solar energy even during grid failures. Thus, there’s a guarantee of 24/7 electricity.
  • The ‘Export to grid’ feature under net metering allows the transfer of excess solar power.
  • No loss of energy or hassles of opening and closing of the ammonia valve.
  • Assurance of quality power.
  • No mechanical stress on the motor.
  • Enhanced mechanical maintenance.
  • Minimal to no need to run the cold storage on a DG Genset.
  • ROI is estimated to be received in 3-5 years.

Case Studies

Let’s overview a few case studies demonstrating the capabilities of EnerTech’s solar hybrid inverters.

Case Study 1

Location Hardoi, Uttar Pradesh, India
Cold Storage Capacity 10,400 metric tons
Number of Compressors Two – 120 HP and 10 HP
Power Cut Duration 5 hours during peak hours
Solution
  • Custom-built hybrid inverter with VFDs to reduce battery load during power cuts
  • Increased motor and battery longevity due to soft start
  • 300KWp of solar is used to run the cold storage load
  • Uninterrupted power is provided by the solar + battery system during blackouts
  • No manual rotation of valves is required during power outages
  • Increased battery life due to sharing of load requirement with the solar PV
Expected ROI and Duration Annual savings of over Rs. 20 lakhs in around 3.25 years on the diesel costs alone

Case Study 2

Location Kanpur, Uttar Pradesh, India
Cold Storage Capacity 5,000 metric tons
Number of Compressors Two
Power Cut Duration 5-6 hours during peak hours
Solution
  • Custom-built hybrid inverter with VFDs to reduce battery load during power cuts
  • Increased motor and battery longevity due to soft start
  • 150KWp of solar is used to run the cold storage load
  • Uninterrupted power is provided by the solar + battery system during blackouts
  • No manual rotation of valves is required during power outages
  • Increased battery life due to sharing of load requirement with the solar PV
Expected ROI and Duration Annual savings of over Rs. 15 lakhs in around 3-4 years on the diesel costs alone

Case Study 3

Location Anand, Gujarat, India
Cold Storage Capacity 6,400 metric tons
Number of Compressors Two
Power Cut Duration 3-4 hours during peak hours
Solution
  • Custom-built hybrid inverter with VFDs to reduce battery load during power cuts
  • Increased motor and battery longevity due to soft start
  • 200KWp of solar is used to run the cold storage load
  • Uninterrupted power is provided by the solar + battery system during blackouts
  • No manual rotation of valves is required during power outages
  • Increased battery life due to sharing of load requirement with the solar PV
Expected ROI and Duration Annual savings of over Rs. 10 lakhs in around 3-5 years on the diesel costs alone

What is the Impact of EnerTech Solar Hybrid Inverter in Increasing Cold Storage Productivity?

Energy efficiency, self-sufficiency, and uninterrupted supply play a significant role in increasing the productivity of a particular machine or equipment. EnerTech’s solar hybrid inverter has helped precisely address these needs through the following. 

  • Uninterrupted 24/7 power supply to run the cold storage at optimum efficiency.
  • Eliminate or at least minimize the need to use diesel generators running at a lower operating power.
  • Annual savings of lakhs of rupees realized over a particular timeframe on diesel and electricity costs.
  • Supply of high electrical power to run the cold storage load.
  • Assured efficiency, cost-effectiveness, and savings across various timeframes.

Solar energy and solar hybrid inverter for cold storage are emerging rapidly as catalyzers of the strategic and commercial progress of the industrial world. With our sustainable products, we are prepared to drive the difference. Please email us at sales@enertechups.com to explore more about our projects and products.

 

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