Cost Components for Setting Up an EV Charging Station – AC, DC Fast Charging – Hardware, Software, Permits…
The concept of charging stations is quite nascent and hence the costs for setting up these are also only now emerging. What we have attempted to do in this section is to provide indicative costs for electric vehicle charging stations – please note, however, these are preliminary data points and could vary significantly depending on multiple factors and also could see significant changes between 2018-2020, given the pace at which the entire electric vehicle sector is changing!
The public charging infrastructure can be broadly divided into two types:
- Normal AC Charging Stations
- Fast Charging DC Stations
In order to calculate the individual component cost involved in setting up the EV infrastructure for both the above types, the cost has been broken down into the following categories
- Core charging station hardware,
- Associated hardware and materials,
- Electrician and other labor,
- Mobilization, which is defined as the time for the electrician and others to prep and gets to the worksite (often including initial on-site consultation) and
- Permitting – which refers to the approvals and permits needed for setting up the charging station.
The following are not included while presenting the costs:
- General and administrative overhead, which can in some cases contribute significantly but which also reduce rapidly with experience,
- Financing (and other costs of capital/debt) for charging station owners.
Most of the cost details provided for the following sections are based on cost data from the US, as there are few or no authentic (installation based) data available for India for charging stations, as of 2018.
As of 2018, the indicative charges for a single port normal charging station is in the range of Rs. 1.5 lakhs – Rs. 3 lakhs.
For public charging stations, in addition to hardware, installation can also be a major contributor to cost. Distance to the breaker box – which could be in the range 50-100 feet – is usually the most important factor for determining installation cost. Runs longer than 150 feet are usually too expensive to justify station installation.
The following charts provide cost inputs for normal charging stations at Parking Garages and Curbside installations. Curbside stations tend to be much more expensive than parking garage installations because they frequently require costly trenching or directional boring to run conduit and wire to the station.
There are two aspects to be noted in the context of the above cost data:
- Electrician and labour costs contribute a significant share to the total costs for both parking garage and curbside charging stations, but these costs are based on installations in the U.S. For India, we can expect these components to contribute significantly lower, given the much lower labour costs and wages in India.
- Not surprisingly, the overall costs come down significantly for multiple charging slots in the same station as compared to one slot. These are driven mainly both economies of scale where the fixed costs get allotted over a larger number of items.
Of course, while cost economies of scale would favour multi-port stations over single-port stations, but demand must exist to justify the extra capacity.
Fast DC charging stations can cost almost an order of magnitude higher than the normal AC charging stations.
Level 3 stations that allow much faster charging have current costs per charger in the range of Rs. 30 lakhs to 65 lakhs per station, compared to Rs. 1.5- 3 lakhs for normal AC charging stations! (While there are reports that Nissan has recently has designed a fast charging station at less than $15,000 or Rs. 10 lakhs, more details are awaited about this development.)
Why are fast charging stations so much more expensive than normal charging stations?
There are two main contributors to their high cost: 1) expensive equipment, and 2) frequently the need to install a 480V transformer.
Transformer cost adds anywhere between Rs. 6.5 lakhs and Rs. 13 lakhs per port. There is a possibility that some select locations could work without transformers for fast charging DC stations, but these locations could need significant due diligence before they are decided upon (assuming these are available in the first place).
Permitting, mobilization and other project overheads differ from one location to another. For India these cost components however could be much lower than what have been observed for the U.S. in the charts below.
An analysis of the costs of fast charging infrastructure from the above chart shows the significant contribution of transformers to the overall cost of the charging station – almost 30% of total costs. These cost data are from the US electric charging stations. For countries such as India with much lower costs for labour, this implies that the contribution to cost from transformers could be even higher.
As a summary, the following section provides indicative costs for setting up an EV charging station (per charging slot) are provided below for both the normal (AC) and fast charging DC stations.
Here are some estimates for charging stations, based on international estimates for EVSEs for car charging, and Indian estimates for EVSEs – both for car and 2/3 wheeler charging.
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See also the blog posts:
- EV Charging Station Growth – India & Global AC & Fast DC Electric Vehicle Charging Trends
- India EV Charging Stations Stakeholders – Solution Providers, Installers for Electric Vehicle Charging Stations
- EV Charging Station Installation & O&M Costs for India – Normal AC Charging, Fast DC Charging
Comprehensive Inputs on Indian EV Ecosystem
Check out the following sections for comprehensive inputs on Indian EV ecosystem (click on each section for more details)
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