Posts

Energy Management System(EMS) Usage in BESS
Rahul Jalthar

EMS and Its Uses in Battery Energy Storage Systems (BESS)

/3 Comments/in /by

In today’s rapidly evolving energy landscape, Battery Energy Storage Systems (BESS) play a crucial role in grid stability and renewable energy integration. But behind every efficient BESS lies a powerful control layer — the Energy Management System (EMS).

Let’s dive into what Energy Management System is and how it transforms the performance of battery storage systems.

What is EMS?

EMS, or Energy Management System, is a software-based control system designed to monitor, manage, and optimize the performance of electrical systems — especially those integrating storage, renewables, and grid power.

It serves as the brain of a BESS, ensuring all energy flows are coordinated, efficient, and responsive to grid demands.

Core Functions of EMS in BESS

The EMS in BESS isn’t just about switching batteries on or off. It handles a wide range of critical tasks that keep energy systems reliable and smart.

1. Energy Flow Optimization

The Energy Management System decides when to:

  • Charge the batteries (e.g., during excess solar generation)
  • Discharge stored energy (e.g., during peak grid demand)

This timing is optimized to maximize efficiency and reduce operational costs.

2. Load Forecasting and Scheduling

By analyzing load patterns and predicting future demand, Energy Management System schedules charging and discharging in advance. This minimizes power wastage and ensures power availability.

3. Real-time Monitoring and Control

Energy Management System monitors:

This real-time data enables precise control, fault detection, and immediate corrective actions.

4. Integration with Renewable Energy

Energy Management System allows seamless integration of solar and wind systems. It balances intermittency by storing excess energy and supplying it when renewable output drops.

5. Grid Services and Ancillary Support

BESS with EMS can provide:

These services are valuable for utilities and grid operators.

Use Cases of EMS in BESS

Here are a few practical applications where Energy Management System driven BESS systems shine:

⚡ Commercial and Industrial (C&I) Facilities

Energy Management System helps manage peak demand charges, optimize solar self-consumption, and ensure backup during outages.

🌞 Solar + Storage Microgrids

In rural or islanded areas, EMS balances solar input with storage, ensuring 24/7 power without relying on diesel.

🏙️ Utility-Scale BESS Projects

For grid operators, EMS enables large BESS systems to stabilize frequency, support black start capability, and defer costly grid upgrades.

🏢 Smart Buildings and Campuses

Energy Management System in campus-wide energy systems manages building loads, coordinates distributed energy sources, and ensures energy cost savings.

Why EMS is Critical for Future Grids

As energy grids become decentralized and more renewable-driven, EMS becomes indispensable. It allows energy systems to:

  • Be more responsive
  • Avoid blackouts
  • Support carbon-neutral operations
  • Generate economic value through smart dispatching

Final Thoughts

In the world of Battery Energy Storage Systems, the Energy Management System is the silent orchestrator — optimizing energy flows, reducing costs, and enabling a sustainable grid. As renewable energy grows, so too will the need for intelligent EMS solutions in every BESS deployment.

FAQs

Q1. Can Energy Management System work without an internet connection?

Yes, local EMS systems can operate autonomously, though cloud connectivity enhances remote monitoring and updates.

Q2. Is Energy Management System hardware or software?

EMS is primarily software but runs on dedicated hardware controllers or integrated edge devices.

Q3. How is EMS different from SCADA?

While SCADA focuses on monitoring and supervisory control, Energy Management System optimizes and automates decision-making processes in energy systems.

Hybrid Inverter
Rahul Jalthar

Hybrid Inverter: The Future of Efficient Energy Conversion

/0 Comments/in , /by

What is a Hybrid Inverter?

A hybrid inverter is an advanced device that combines the functions of a solar inverter and a battery inverter in one. It manages power from solar panels, batteries, and the grid.

Unlike traditional inverters, which can only convert DC to AC for home use, hybrid inverters offer much more flexibility. They store excess solar energy in batteries and draw from them when needed.

This intelligent system helps reduce reliance on the grid, lowers electricity bills, and ensures power during outages.

How Does a Hybrid Inverter Work?

A hybrid inverter takes DC electricity from solar panels and converts it into AC power for home use. At the same time, it charges batteries using extra solar power or grid electricity.

When solar generation is low—say at night—the inverter automatically switches to battery power. If the battery runs low, it then draws power from the grid.

This seamless transition between sources ensures energy availability, peak-time savings, and stable voltage supply.

Key Features

Hybrid inverters offer several cutting-edge features that make them ideal for modern homes and businesses:

  • Grid Interaction: Smart control over when to use or sell electricity back to the grid.
  • Battery Management: Efficient charging and discharging of batteries with real-time monitoring.
  • Backup Power: Keeps essential appliances running during power cuts.
  • Remote Monitoring: Most hybrid inverters come with mobile apps for tracking energy usage.
  • Load Shifting: Shifts electricity use to off-peak hours to reduce costs.

These features allow for dynamic energy use, especially when paired with solar and energy storage systems.

Benefits of Using a Hybrid Inverter

Choosing a hybrid inverter provides several benefits over traditional setups:

  • Energy Independence: Reduces dependence on the utility grid.
  • Cost Efficiency: Saves money by using stored or solar energy during peak rates.
  • Reliable Backup: Ensures continuous power during outages or grid failures.
  • Eco-Friendly: Maximizes solar usage and minimizes grid energy consumption.
  • Space-Saving Design: Combines two inverters into one sleek unit.

All these advantages make inverters an excellent choice for homes aiming for sustainability and savings.

Applications

Hybrid inverters are commonly used in residential solar-plus-storage systems. However, they’re also gaining traction in:

As solar adoption grows, so will the role of hybrid inverters in managing clean, stable energy flow.

Certifications to Look for in a Hybrid Inverter

Before purchasing a hybrid inverter, always check for essential certifications. These indicate compliance with safety, quality, and efficiency standards. Key certifications include:

  • IEC 62109 – Safety of power converters used in photovoltaic systems. Ensures the inverter is safe for residential and commercial use.
  • UL 1741 / IEEE 1547 – Common in North America, these ensure grid compatibility and operational safety.
  • CE Marking – Required in the European Union, it indicates conformity with health, safety, and environmental protection standards.
  • RoHS Compliance – Confirms the product is free from hazardous substances like lead or mercury.
  • ISO 9001 Certification – Demonstrates the manufacturer’s commitment to quality control and continuous improvement.
  • VDE-AR-N 4105 / G99 (UK) – Required for connecting inverters to low-voltage grids in specific countries like Germany or the UK.

Always request documentation and verify certification numbers when evaluating products. A certified hybrid inverter ensures safety, better performance, and legal compliance with your local power grid.

Things to Consider Before Buying

Before investing in a Inverter, keep these points in mind:

  • Battery Compatibility: Ensure it supports lithium, lead-acid, or the battery type you plan to use.
  • Power Rating: Choose an inverter that matches your load and solar panel capacity.
  • Efficiency Rating: Look for models with >95% conversion efficiency.
  • Warranty & Support: A reliable brand should offer at least 5–10 years of warranty.
  • Certifications: Before purchasing it always check for essential certifications.

Taking time to assess these factors ensures long-term satisfaction and performance.

Conclusion

A hybrid inverter is the brain of modern solar energy systems. It integrates solar, storage, and grid power into one smart solution. Whether you’re cutting costs, going green, or building energy independence, a hybrid inverter is a powerful asset.

100Kwh-runny-24x7-solar and BESS calculations
Rahul Jalthar

How to Choose Solar Panels and Batteries to Run a 100kWh Load 24/7: Full Guide with Examples

/5 Comments/in /by

If you’re planning to power a 100kWh load continuously (24/7) using solar panels and a battery energy storage system (BESS), it’s not as simple as just multiplying watts. You need to factor in weather conditions, seasonal sunlight availability, cloudy days, and energy efficiency. This blog will guide you step-by-step on how to size your system properly using formulas, examples, and visual data.

📌 What You’ll Learn:

  • How to calculate required solar panel capacity
  • Why yearly weather data is critical
  • How to handle cloudy days and winter months
  • Battery sizing for different backup durations
  • Example formulas and real-world values

🔧 Step 1: Understand Your Load

Let’s say your system must support a 100 kWh per hour load.

  • 24 hours/day × 100 kWh = 2,400 kWh per day
  • That’s your daily energy demand from solar + battery.

🌍 Step 2: Analyze Your Location’s Solar Irradiance

Your geographic location heavily influences how much sunlight you receive—measured in Peak Sun Hours (PSH).

LocationPeak Sun Hours
Phoenix, USA6.5 PSH
New Delhi, India5.5 PSH
London, UK2.8 PSH

👉 You can get this data from tools like PVWatts, NASA SSE, or Solcast.

🧮 Step 3: Calculate Required Solar Panel Capacity

Formula:

textCopyEditRequired Solar Capacity (kW) = Daily Load (kWh) ÷ (PSH × Derating Factor)
  • Daily Load = 2,400 kWh
  • Derating factor (system losses) = ~0.8
SeasonPSHRequired Solar Capacity
Summer6.52,400 ÷ (6.5 × 0.8) ≈ 462 kW
Winter4.02,400 ÷ (4.0 × 0.8) ≈ 750 kW
Cloudy Days2.52,400 ÷ (2.5 × 0.8) ≈ 1,200 kW
Solar panels required for 100KWh running 24/7


🌥️ Why Consider Cloudy Days?

Even if your area has high annual irradiance, you’ll still face days with poor sun exposure. For mission-critical applications, your system must:

  • Be oversized for worst-case scenarios.
  • Include battery backup for 1–3 days.
  • Use hybrid systems (e.g., gensets or grid backup) if needed.

❄️ Considerations for Winter Months

Winter brings:

  • Lower sun angles
  • Shorter daylight
  • Snow cover (for northern regions)

???? This reduces effective PSH and increases your dependence on storage or supplemental power.

⚡ Step 4: Size the BatteryEnergy Storage System for Backup

Battery Energy Storage System should store enough energy to power the load during non-sunny hours or failures.

Formula:

textCopyEditBattery Capacity (kWh) = (Daily Load × Days of Autonomy) ÷ (DoD × Efficiency)
  • Daily Load = 2,400 kWh
  • Depth of Discharge (DoD) = 0.8
  • Round-trip Efficiency = 0.9
Backup DurationRequired Battery Capacity
1 Day2,400 ÷ (0.8 × 0.9) ≈ 3,333 kWh
2 Days4,800 ÷ (0.8 × 0.9) ≈ 6,667 kWh
3 Days7,200 ÷ (0.8 × 0.9) ≈ 10,000 kWh
Battery Backup required for 100Wh 24/7 Running


✅ Tips for Choosing Solar Panels

  • ✔️ Use Tier-1 panels with high efficiency (≥21%)
  • ✔️ Consider bifacial panels if space allows
  • ✔️ Use anti-reflective coating for dust-heavy areas
  • ✔️ Install with adjustable tilt for seasonal optimization

✅ Tips for Choosing Batteries Cells for BESS

🔄 Hybrid Solutions for Reliability

When powering a 100kWh continuous load, consider a hybrid setup:

  • ???? Solar + Battery + Diesel: For industrial backup
  • ???? Solar + Grid + Battery: For grid-tied systems
  • ????️ Solar + Wind + Battery: For off-grid redundancy

📊 Real Use Case Example

Scenario:

  • Location: Northern India
  • PSH (winter): 4 hours
  • Load: 100kWh × 24 = 2,400kWh/day
  • Solar Size = 2,400 ÷ (4.0 × 0.8) = 750 kW
  • Battery for 2 days = 2,400 × 2 ÷ (0.8 × 0.9) ≈ 6,667 kWh

🧠 FAQs

Q: Can I go without batteries?

A: Only if your load is flexible or you remain connected to the grid.

Q: Should I oversize the battery or the solar array?

A: Both, depending on your climate. Cloudy regions need higher solar oversizing.

Q: What’s better—LFP or NMC batteries?

A: LFP is safer and more stable for stationary storage.

📌 Conclusion

Designing a solar + battery system for a 100kWh 24/7 load isn’t just about matching numbers—it’s about planning for the worst day of the year, not the best. Location-specific solar data, battery autonomy, system losses, and seasonal variations must all be part of your sizing strategy.

Portable Battery Enerhy Storage Systems (PBESS)
Rahul Jalthar

Portable Battery Energy Storage Systems: Power Anywhere, Anytime

/2 Comments/in /by

What is a Portable Battery Energy Storage System?

A Portable Battery Energy Storage System is a mobile energy unit that stores electricity—often sourced from the grid or renewable sources like solar panels—and delivers it when needed. Unlike fixed installations, these systems are lightweight, easy to transport, and designed for quick deployment in homes, outdoor sites, emergency zones, and small businesses.

Key Features of Portable Battery Energy Storage Systems

• Mobility: Lightweight and compact designs for easy transport

• Plug-and-Play: Simple operation with USB, AC, and DC outputs

• Solar Charging: Many models support solar input for off-grid use

• Smart Management: Equipped with BMS (Battery Management System) for safety and efficiency

• Environmentally Friendly: No emissions, noise, or fuel needed

Why Portable Energy Storage is Gaining Traction

1. Emergency Preparedness: Power outages are becoming more frequent. A portable unit ensures your essentials stay running.

2. Outdoor Adventures: From camping to off-grid travel, PBESS provides energy independence.

3. Worksite Flexibility: Ideal for temporary job sites and mobile operations.

4. Eco-Conscious Living: Reduces reliance on fossil fuels and promotes renewable energy use.

Types of Portable Battery Energy Storage Systems

1. Personal/Consumer-Grade Units (100Wh – 2000Wh): Compact power stations for phones, laptops, drones, and small appliances.

   Examples: EcoFlow River, Jackery Explorer, Anker PowerHouse

2. Mid-Capacity Systems (2kWh – 5kWh): Power for refrigerators, medical devices, TVs.

   Examples: Bluetti AC200MAX, EcoFlow Delta Pro

3. High-Capacity Portable ESS (5kWh – 20kWh+): Off-grid homes, mobile clinics, events.

   Examples: Hinen Portable ESS

4. Solar Generator Kits: Bundles of battery units and foldable solar panels.

Applications of Portable Energy Storage Systems

• Residential Backup: Keep essentials running during blackouts

• Outdoor Use: Campers, RVs, boaters

• Construction & Industrial Sites: Power tools and devices

• Emergency & Relief Operations: Communication, lights, medical gear

• Events & Exhibitions: AV equipment, lighting

How to Choose the Right PBESS

• Capacity (Wh or kWh): Estimate your daily power need

• Output Ports: Check for AC, USB, DC, inverter types

• Recharge Options: Grid, solar, car, generator

• Cycle Life: 2000+ cycles preferred

• Weight & Portability: Match your mobility needs

• Safety Certifications: UL, CE, UN38.3

Future of Portable Energy Storage

LFP and semi-solid battery technologies are improving safety, lifespan, and efficiency. App-enabled units offer diagnostics and control from mobile devices.

Final Thoughts

Portable Battery Energy Storage Systems are no longer a luxury—they’re fast becoming a necessity in our power-hungry, unpredictable world. Whether you’re braving the outdoors, preparing for emergencies, or reducing your carbon footprint, these systems give you control over your energy needs.

Looking to explore high-quality portable BESS units for personal or business use? Contact us today for expert consultation and sourcing support tailored to your needs.