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Category: Solar

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5 Reasons to go for Lithium-ion Batteries

5 Reasons to go for Lithium-ion Batteries

Do you like interruptions while you enjoy your movie or are busy working on your computer? NO! We HATE INTERRUPTIONS! this is what you might answer! 

To avoid interruption and high energy bills, we have a fleet of solutions which are broadly called storage systems. All of them feature battery backup, and some of them feature solar energy as well. Storage systems with solar are known as hybrid solar energy systems, where you get to save your energy bills while consuming electricity without interruption in an eco-friendly way.

But how do you get a continuous energy supply with a hybrid solar energy system?
It is the BATTERY(energy storage system) affixed to the solar panels and grid that maintains power regardless of the weather condition and grid failure.

Although many rechargeable batteries are available in the market today, lithium-ion batteries(Li-ion) have made a name for themselves in the market due to their high performance and long lifespan.
The lithium-ion batteries in combination with renewable energy have a great potential to cater for the energy requirement of the people and reduce grid dependence.

But do you know the fact?
Lithium-ion batteries claim to be top-notch reliable and durable batteries but it is true only if they are handled with proper management. We at SunEdison, before dispatching the batteries, perform a complete quality check of the cell and battery to make sure it is in good condition.

Advantages of Lithium-ion batteries?

  1. Higher Depth of Discharge (DoD): Depth of discharge is the amount of the stored energy in the battery that has been used, as compared to the total capacity of the battery. DoD for a lithium battery is 90-95% whereas for a lead acid battery is around 50-80%. This means that the Li-ion battery’s actual energy capacity is closer to the nameplate value of its energy capacity.
  2. Higher energy density: Battery energy density refers to how much power a battery can hold concerning its physical size. In homes with limited space, lithium-ion batteries are a great option since they are space-saving (taking only 20-30% of the space) and store more power than lead-acid batteries per square foot.
  3. Less Maintenance: Lithium-ion solar batteries do not require as much maintenance as lead-acid batteries. SunEdison’s batteries also have WiFi-based monitoring which makes it easier to monitor the systems through the app.
  4. Battery Lifespan: These batteries are long-lasting due to their high DoD and minimal charging and recharging requirements. SunEdison’s Lithium-ion batteries have a minimum warranty lifespan of about 10 years. If we assume 1 cycle/day then the lithium-ion batteries have a lifespan of around 17 years.
  5. Higher Efficiency: Compared to other types of batteries on the market, lithium-ion batteries have a round-trip efficiency greater than 95%.

Are lithium-ion solar batteries for residential users?

In general, lithium-ion solar batteries are the best solar energy storage system for everyday residential use because they take up little space while storing a substantial amount of energy. They also have a sleek IP55 enclosure and do not have exposed wiring, making the system safer.
Furthermore, their high DoD allows you to store more energy.

The long life of lithium-ion batteries means that the battery won’t need to be replaced as often as a lead acid battery. They also allow you to extract, store and release more energy (from your solar panels) due to their higher efficiency. With a lithium battery connected to your on-grid or off-grid solar energy system, you can get a continuous power supply.

Do you know LFP (lithium iron phosphate) batteries are more reliable than simple Li-ion batteries?

LFP batteries are a type of lithium-ion battery with very stable chemistry. LFP batteries consist of lithium iron phosphate as a cathode that gives the battery a longer life span with zero maintenance. Additionally, the LFP batteries don’t release any toxic or dangerous gases during charging or discharging and have better thermal management. 
When it comes to safety and hot regions, LFP batteries are the best option.

Our SunEdison LFP batteries require zero maintenance and come with a 10-year product warranty on the battery.

In case you want an uninterrupted power supply with safety as a priority while reducing your electricity bills in an environmentally friendly way, then Contact us. Today!
Our technical team will be happy to help you get the right solar energy system for your location.

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The government aims to reduce conventional sources dependency and switch to clean solar energy as it proves to be the most prominent and reliable source of energy due to the series of economic benefits it offers in its 25 plus years of lifespan.

Why just be a consumer when you can be a producer as well?

Right, solar energy installation at your place can make you a prosumer.

Solar net metering consents consumers to produce, borrow and sell electricity to the connected utility grid.

Net metering is a billing mechanism that allows you to pay for your electricity production.

But how does net metering work? What are the scenarios in which I can get paid?

In this article, we have tried to answer your question and provide you with insights related to solar net metering.

How does solar net metering work?

  The solar net meter is a bidirectional meter that allows the import and export of energy from the utility grid-connected

  1. During Day/Sunny Day: Solar panels operate most efficiently and provide their maximum amount of electricity on sunny days. The generated energy is delivered to the associated load via the inverter, and any excess energy (since your home typically uses less energy during the day) is exported to the grid via the net metre. The net metre keeps track of how much energy is supplied.

The energy supplied to the grid can be imported during the non-sunny hours, and the difference between the energy supplied and borrowed is calculated at the end of the billing cycle.

2. During Night: The solar panels are not capable of generating the required energy during night hours. To support this time slot energy is imported from the utility grid-connected connected

3. During Cloudy Weather: During the cloudy weather or rainy season, solar panels operate below their optimum level. The extra energy required during this time interval is imported from the utility grid connected through solar net metering. The amount of energy imported is recorded and added during the billing period.

4. During Power Outages: In case of power failure, the solar net meter stops working as a safety precaution. During this event, if power is supplied from the solar panel to the utility grid-connected the person working on the maintenance of the grid can be endangered

For instance, a grid-connected solar rooftop system installed generates 700 units of electricity per month, now let us understand the billing scenario considering the following two case

Case 1(May): 

Energy consumption: 600 units

Solar energy generation: 700 units

Difference: 700-600 = 100 units

These 100 units are carried forward into the next month, and the estimated net electricity bill for this month is zero.

Case 2(June): 

Energy consumption: 600 units

Solar energy generation: 800 units

Difference: 800-600 = 200 units

Carry forwarded units = 100 units

Energy bill = (Difference of energy units – carry forwarded units)

                    = 200 – 100

                    = 100 units

So, for this month the consumer needs to pay only for the extra 100 units consumed. 

Suppose for your location the set tariff rate is Rs 5 per unit,

100 * 5= 500 Rs. 

So the estimated billing amount for this month is Rs 500.

Just an anxious fact: Without solar energy installation, the electricity bill would have been 800*5 = 4000 Rs

(I know it is too much, especially for residential consumers)

Going for solar is a vital alternative to cut your ever-increasing electricity bills without compromising your comfort!


To increase solar adoption, governments of many states have adopted solar net metering policy but its implementation has been delayed or restricted by imposing various other limitations.

Despite their interest in solar installations, many consumers were hesitant to install solar at their location due to the unfriendly solar net metering policies.


To overcome the challenges the rules imposed prior on net metering were changed and implemented.

According to the latest amendment rule released in June 2021 by the Ministry of Power under the “Right of Consumers” provisions of the electricity right act 2003 regarding solar rooftop projects, net metering can be permitted for a plant capacity of 500kW or up to the sanctioned load (whichever is low) as per the state policy. The consumers can earn nearly Rs 7 per unit (kWh) (It varies with state policy) from the installed rooftop system just by selling the surplus generated solar power with the help of net meter.

Advantages of solar net meeting:

  1. Reduced electricity bill
  2. Credits can be rolled out to next month
  3. With solar net metering no battery backup is  required


No, the amount of surplus power sent to the utility grid is used by other consumers, but as the energy is exported through net metering the number of units of energy supplied is recorded and credited into the billing account of the consumer.

Well, No! Don’t expect cash/ cheque for the number of units exported to the grid. The amount of energy supplied to the grid is recorded with the help of net metering, and at the end of the billing period the difference between the energy exported and imported is calculated, if the amount of energy exported to the grid is more in than case you don’t need to pay anything to the utility grid, the extra energy supplied will be carried forward in the next month.

Well, you don’t need to go and check, a back and forth meter also known as a net meter which is installed between the distribution panel and the grid will help in analyzing the difference between the amount of power generated and used. It moves in the forward direction when the energy generated is less than the energy used and reverse direction when the condition is opposite.

Net metering is a bi-directional meter in which electricity exports and imports are adjusted, lowering the electricity bill, such that, electricity produced is deducted from the total electricity consumed over a fixed period of time. 

Whereas gross metering is a unidirectional meter, the generated energy from the solar panel is exported to the grid, and the consumer imports electricity from the grid for consumption at retail rates. After the settlement period, the consumer receives payment at the state commission’s determined Feed-in-Tariff (FiT) rate for the electricity exported to the grid.

No, the net metering policy is not allowed in all states, before going for solar one needs to check and understand the savings better based on the respective regulation in the state. 


If you want to switch to solar and are confused regarding which government incentive/subsidy you should opt for.  

Don’t worry, our technical team at SunEdison will provide you with the best possible design solution and a hassle-free service right from government formality. (We will take care of all the government formalities required)