How Battery-Backed Solar Carports Can Reduce EV Charging Costs in Hyderabad, Vijayawada, and Visakhapatnam

See how battery-backed solar carports can cut EV charging costs in Hyderabad, Vijayawada, and Visakhapatnam. Learn the policy support, site economics, and why…

How Battery-Backed Solar Carports Can Reduce EV Charging Costs in Hyderabad, Vijayawada, and Visakhapatnam

Battery-backed solar carports are not merely a decorative add-on. They are a cost-control tool.

The Ministry of Power’s annual report says a solar carport with Battery Storage can be charged with solar energy and store energy onsite, then use that stored energy later to charge EVs as an independent alternative to grid-dependent charging. The report also includes a real commissioned case study: a carport at the Statue of Unity with 50 kWp solar, 200 kWh BESS and charging options such as 60 kW CCS II fast chargers, AC001 chargers and Type II AC chargers. That's not theory. It is an operating template.

The cost side is where the idea gets serious. The Ministry of Power charging guidelines say that EV charging electricity shall be a single-part tariff capped at Average Cost of Supply (ACoS) till 31 March 2028, and that the distribution licensee may charge 0.7 times ACoS during solar hours (9 am to 4 pm). The same amendment also says public charge point operators may complement charging stations with storages and facilitate bi-directional flow of electricity between the grid and EVs. That combination is exactly what makes solar carports with BESS financially useful.

Why this matters now in South India

Hyderabad, Vijayawada, and Visakhapatnam are already within the active charging ecosystems. According to the Telangana EV infrastructure page, the state is providing support for EV charging stations and battery swapping facilities. As per the sanctioned EVCS page, there are 111 public charging stations available in Hyderabad as on date including Government & Private. Andhra Pradesh’s sustainable mobility policy says there are 601 public charging stations operating in the state, and NREDCAP’s 2026 PM E-DRIVE RfP says the project envisages 131 EV Public Charging Station locations across Andhra Pradesh. The base of demand is already there, the question is how to reduce the cost of serving it.

The battery-backed solar carports are helpful as they address the two largest cost drivers simultaneously: purchased power and dependence on peak demand. The overview on energy storage systems by the Ministry of New and Renewable Energy (MNRE) states that energy storage systems can store renewable energy and use it during peak hours of the day. That is exactly how a carport works that produces solar energy during the day, stores a portion of it and uses it to charge EVs when the demand is higher or the sun is gone.

Table 1: What the carport changes

Problem in a normal charging site	What battery-backed solar carports do	Cost effect
All energy is bought from the grid	Some energy is produced onsite through solar	Lower purchased electricity
Charging load hits the grid directly	Battery smooths the site load	Less peak stress
Evening charging relies on expensive or stressed grid supply	Solar stored in BESS is used later	Better utilization of onsite energy
Site expansion can require heavier grid upgrades	Storage buffers part of the demand	Delays or reduces upgrade pressure

This is not a claim that solar carports are free. They are not. The real point is that they reduce the amount of energy you must buy from the grid, and they let you buy more of the remaining energy in the cheaper solar-hour window.

The simplest way to understand the savings

A pure grid charging site is paying for every unit of electricity it uses. A solar carport with a battery backup changes that equation in two ways. Firstly a proportion of the charging energy comes from solar generation on site. Secondly, storage could be used to move some of the remaining grid energy into the solar-hour tariff window. That’s why the economics get better even before you start counting in broader benefits such as uptime or brand value.

This is a conservative illustrative model, not a promise of universal savings. Let's assume the daily charging energy of a site is distributed as: 30% direct solar 20% grid energy shifted to solar hours by BESS 50% normal grid energy Solar-hour grid energy is priced at 0.7 of ACoS so the weighted operating-energy cost is 0.64 of an all-grid site. That’s a 36% reduction in the amount of electricity purchased compared to a site that buys everything from the grid during standard hours.

Table 2: Illustrative operating-cost model

Energy source mix	Cost factor used	Contribution
30% direct solar	0.0	0.00
20% grid energy during solar hours	0.7	0.14
50% normal grid energy	1.0	0.50
Total		0.64

That’s a working number. In the illustrative model, a site with an all-grid electricity bill of ₹1,00,000 per month would save about ₹36,000 per month, making the bill about ₹64,000 per month excluding capex and operating overhead. That is the kind of reduction that matters in payback logic for a charging site.

Why battery storage matters instead of solar alone

Only works when the sun is shining. That's the problem.

According to the ESS overview of the MNRE, energy storage systems can store renewable energy and use it during peak hours. The annual report of the Ministry of Power takes this a step further, describing a real solar carport with battery storage that can store solar energy on-site and use it later to charge EVs. The thing that makes the carport useful after dark is the battery. In the absence of the battery, the site is still subject to the timing of solar generation. With the battery, the site can shift energy to the hours when EVs actually need it.

This is important in Hyderabad, Vijayawada and Visakhapatnam as these are not sleepy, low-load locations.” These are active urban and commercial markets where parking assets, office campuses, hotels, malls and fleet sites can actually put the electricity to use later in the day. Both the NREDCAP portal of Andhra Pradesh and TGREDCO pages of Telangana show active planning and implementation of charging infrastructure. This means that the market for battery-backed solar charging already exists.

Which site types should adopt first

Not all sites require the same architecture. Best early candidates are those with predictable parking and repeated daily dwell time.

Hotel parking, mall parking, office campuses, flat clubs, fleet depots, highway amenities are the cleanest use cases. They can take a carport, have traffic coming and going and can cut down on dependence on the grid. The annual report of the Ministry of Power states that solar carports can be installed as standalone or grid-connected, thus making them versatile for public and semi-public site types.

Table 3: Best-fit site types

Site type	Why battery-backed solar carports fit	Main benefit
Hotels	Guests park for hours, often overnight	Lower operating energy cost
Malls	Large parking footprint and daytime sun exposure	Turns parking into energy asset
Offices	Daytime parking aligns with solar generation	Better self-consumption
Apartment complexes	Shared parking and overnight charging needs	More predictable charging economics
Fleet depots	Repeat charging cycles and high utilization	Load buffering and tariff control
Highway amenities	Visible charging demand and long dwell windows	Better uptime and lower grid stress

The commercial point is simple: a carport is valuable when the parking space itself becomes a power asset. That’s where the price of charging begins to come down.

Why Hyderabad, Vijayawada, and Visakhapatnam are strong targets

Hyderabad has an extensive charging history already. As per the sanctioned EVCS page of TGREDCO, there are 111 public charging stations in Hyderabad comprising government and private sites as on date. The portal of TGREDCO also indicates active tendering and implementation work for EV charging station. That means you already have a user base that understands charging, so a solar-backed premium parking or charging experience is easier to monetise.

There is still more obvious scope for deployment in Andhra Pradesh. The state has 601 public charging stations working as per its sustainable mobility policy. The 2026 RfP from NREDCAP calls for 131 EV Public Charging Station locations across AP. “That shows the state is still in build-out mode. Battery-backed solar carports make the most sense in buildout mode, because you can design the site properly before load growth worsens the grid problem.

Visakhapatnam is also relevant since NREDCAP’s EV charging registration and AP policy stack already includes public, captive and private charging use cases. The larger lesson is not that one city has some magic advantage. It’s that in all three cities there’s a policy and demand environment where carports can be tied to real charging behaviour, not speculative demand.

What the policy stack says about storage-backed charging

India’s position here is not one of passivity. According to the Ministry of Power’s charging guidelines, the electricity tariffs for EV charging should remain capped at ACoS till 31 March 2028, with a reduced 0.7 times ACoS tariff during solar hours. The same guidance notes that public charge point operators may want to combine charging with storage and smart charging practices. That’s the policy version of a call to design better sites.

The solar carports in the annual report are a good example of the government thinking in terms of integrated systems: solar generation, battery storage, and EV charging hardware all at one site. When the site is integrated that way, cost control is an engineering issue, not a billing issue. That is a better place for you to be.

What a serious solar carport should contain

A serious solar carport is more than a shade structure with a few panels slapped on top. The carport structure, solar PV array, battery storage, charging hardware, metering and controls are required. The Ministry of Power in its annual report describes the commissioned example as app-based with 50 kWp solar capacity and 200 kWh BESS and multiple charging options. This means that the system has to be designed as a compact energy site and not as separate disconnected pieces.

Table 4: Basic design stack

Layer	Purpose	Why it matters
Solar PV canopy	Generates onsite electricity	Lowers grid purchase
Battery storage	Stores solar energy for later use	Enables evening charging
Chargers	Dispense energy to EVs	Turns the site into a revenue asset
Metering and controls	Track energy flow and pricing	Makes savings visible
App / monitoring	User visibility and site management	Improves utilization

The key is not to oversize blindly. The system should match parking demand, expected EV throughput, and the local tariff environment. The policy cap on EV charging tariffs creates room for a smarter site, but it does not make bad sizing profitable.

Why BESS is more useful than a bigger grid connection alone

One issue, raw power imports, could be addressed with a larger grid connection. Does not solve timing.

Battery solves timing. It uses energy when the site has solar or off-peak power and it gives out energy when vehicles need it. The ministry of power's amendment makes it absolutely clear that charge point operators are allowed to integrate storage at the charging stations and allow electricity to flow in two directions. That’s the policy message that storage is a load management device, not a backup-only device.

That is important to the operator of a site because grid upgrades are expensive and take time. If storage can take some of the load, the operator can serve more charging demand without having to pay for the largest possible electrical upgrade right away. That does not mean you will never be upgraded again. It is a way of postponing them until it is worth while to use them.

What this means for charging operators

Operators in Hyderabad, Vijayawada and Visakhapatnam need to consider solar carports as infrastructure plus energy management, and not merely a real-estate feature. According to TGREDCO and NREDCAP, Telangana and Andhra Pradesh have already established structured EV charging ecosystems. Next, we need to build sites that make the electricity bill more predictable and the charging experience more reliable.

If a site is heavily used during the day, solar reduces immediate dependence on the grid. BESS enables a site with evening charging to move energy from daytime to a later time window. If the site is price sensitive, the EV charging tariff framework gives a reason to push more load into solar hours. That's why the carport model is a more robust unit than just a charger install.

What investors should underwrite before building

Don't underwrite the carport on opticals. Underwrite on use.

The first question is what proportion of the site charging energy can be provided from onsite solar. The second is the ability to shift the remaining load to solar hours using battery storage. Third, the frequency of actual use of the site. Unused carport is just a pretty expense. A multi-charge-per-day carport is an energy asset.

The policy environment is a help, but it’s not magic. The tariff side helps solar hour pricing and the ACoS cap. On the supply side, solar carport and BESS support. It’s the application that makes the entire stack work. If you build too much capacity for weak demand, the payback gets worse fast. If you match the site to real demand, the savings are huge.

The cleanest commercial case

The best commercial case is a site with parking by day and recurring EV charging demand. That includes offices, hotels, shopping centers and fleet depots. The Ministry of Power at Statue of Unity illustrates how solar carports with battery storage can offer multiple charger types and app-based monitoring. That’s just the kind of mixed-use site architecture that can work in the big South Indian cities.

The logic of the operation of these sites is simple. Put solar power on the carport. The surplus is put into the battery. Store the energy to use later . Charge it! Reduce grid energy use. Buy the leftover grid power intelligently. Lower the bill without lowering service. That's the entire business case.

Bottom line

Battery-backed solar carports can reduce EV charging costs by changing where the electricity is from and when it is consumed. The site can supply some of its load with onsite solar, and use battery storage to shift energy into later charging windows, instead of buying all units from the grid. The model is clarified by the official guidance of the Ministry of Power and commissioned solar carport example.

This is especially true for Hyderabad, Vijayawada and Visakhapatnam where the charging ecosystem is already live and expanding. As on date Telangana has 111 public charging stations operational in Hyderabad and Andhra Pradesh has 601 public charging stations operational at statewide plus 131 EV PCS locations in the current AP RfP. So the market is real enough. The other advantage is for sites that can cut their charging cost and load better than others.

People Also Ask

1) How exactly do battery-backed solar carports cut EV charging costs?

They cut cost in 2 steps. First, the carport generates electricity on-site using solar panels, so the operator buys less power from the grid. Second, the battery stores excess solar energy, and makes it available to the site later, when EVs actually need charging. The Ministry of Power said the core mechanism is that solar carports with battery storage can charge EVs from onsite solar and use stored energy later. The charging tariff guidance is also important as electricity for EV charging is capped at ACoS until 31 March 2028 and can be 0.7 times ACoS during solar hours. That combination takes operating cost down in a way that a normal grid-only site cannot touch.

2) Is a solar carport enough on its own, or do I need battery storage too?

Solar is a help in itself but the battery storage is the piece that makes the site flexible.” Without BESS you only get the benefit when the sun is shining. With BESS, the site can shift energy to later in the day, which matters for evening charging and peak demand. Storage can store renewable energy and use it during peak hours, the MNRE’s ESS overview says. The government also expects storage to be integrated with charging sites, according to the Ministry of Power’s annual report and EV charging guidelines. So if your demand is only mid-day and closely matched to sunshine, solar alone might work. If you want flexible all-day charging economics, battery storage is the better answer.

3) What kind of savings can a site actually expect?

That depends on utilisation, tariff structure and onsite energy that can be sourced at the site. For a conservative illustrative model where 30% of a site’s charging energy comes directly from solar, and 20% of the load is shifted into the solar-hour window with BESS, the operating-energy bill drops to 64% of an all-grid site, a 36% reduction. This means a saving of around ₹36,000 on a monthly electricity bill of ₹1,00,000 before capex and operating overhead. Depending upon the site, the real result may be higher or lower. That’s why this needs to be treated as an operating model, not a promise.

4) Why are Hyderabad, Vijayawada, and Visakhapatnam strong locations for this model?

Given the fact that the EV charging ecosystem is already present in all three markets. Hyderabad has 111 public charging stations available till date, and Telangana’s policy explicitly includes EV charging stations and battery swapping facilities, says TGREDCO’s sanctioned EVCS page. The sustainable mobility policy of Andhra Pradesh states that 601 public charging stations are operational in the state and NREDCAP’s 2026 RfP is for 131 Electric Vehicle Public Charging Station locations across AP. This means that there is already enough demand for charging, and enough policy structure to warrant more sophisticated site designs such as solar carports coupled with storage.

5) What site types should adopt battery-backed solar carports first?

The best early candidates are parking intensive venues with predictable dwell time. Hotels, malls, offices, apartments, fleet depots, and highway amenities. The annual report of the Ministry of Power says solar carports can be installed independently or integrated with the grid, making them flexible enough for commercial sites. The case for savings is strongest when parking is already a business asset and charging is a repeat activity. At these sites, the carport turns parking space into an energy-producing surface, and the battery lets that energy work later in the day. That's a much better use of real estate than dead shade.

6) Does this only work for public charging stations?

No. Public charging is one use case, not the only use case. The Ministry of Power amendment says public charge point operators can tap into storages and smart charging practices, but the same underlying economics also apply to captive and private charging sites. Telangana has EV charging and battery-swapping policy support, while Andhra Pradesh’s registration framework covers captive, private and public charging and both TGREDCO and NREDCAP are doing more than just public charging. So a battery-backed solar carport can work at hotels, offices, apartment complexes, fleet depots and other semi-private sites just as well as a public station.

7) Why is storage better than just increasing grid connection capacity?

A larger grid connection just means you get more imported power. It doesn’t give you options. “Battery storage provides you with flexibility because it moves energy from one time to another. MNRE’s summary of ESS mentions the use of storage for peak shifting and grid stability while the Ministry of Power’s charging rules clearly permit co-location of storages with charging stations. That’s why storage can be more powerful than brute-force grid expansion at many charging sites. If you want to run EV charging when demand is higher, storage is the cheaper operational lever to pull first. Storage can allow you to delay grid upgrades until the site really earns them.

8) Where does a storage-backed site like SpiderVault fit in this picture?

It fits at the property and site level where solar, backup and EV charging need to work as one system. The larger story in the market is grid-scale storage and public charging infrastructure. But the same logic applies to premium homes, commercial buildings and charging sites that want to reduce their dependence on expensive grid power. If the site wants solar self-consumption, silent backup, and EV charging capability, instead of individually, then a storage-backed architecture like SpiderVault is relevant. The bigger point is simple: when charging becomes an energy management problem, the best answer is generally a storage-backed answer.