(05/03/2017) – Public Utilities Commission of Sri Lanka, the electricity sector regulator, approved a time based,
‘optional tariff’ for the single phase domestic consumers, which was earlier limited only to the consumers who have three phase connections and consuming 30A or above.
The time of use (TOU) tariff was identified as it would benefit the domestic users and aims to demote power usage during the peak time and promote power usage during the off-peak time.
The approved tariff is an optional tariff for single phase consumers which the connection can be changed only upon a request to the utility.
The decision came into light sighting the observation of an increasing fleet of electric vehicles (EV) in Sri Lanka and the increase of the peak demand on account of their charging load.
Proposing the tariff change, Ceylon Electricity Board said, the studies undertaken by western utilities have found that uncontrolled natural consumer behavior for vehicle charging invariably contributes to the evening peak.
“The world is driving towards more clean and efficient use of energy and most of the countries are in the process of electrifying the transport sector encouraging the energy efficiency. Not only that, considering the facts of energy efficiency and environmentally friendliness, a big wave has been created by people in moving towards electric vehicles around the world and of course in Sri Lanka. The extension of ToU tariff to the single phase domestic users plans to encourage energy efficiency and will be benefited by the EV users in Sri Lanka where they can charge their vehicles at a lower cost,” Damitha Kumarasinghe, Director General of Public Utilities Commission of Sri Lanka said.
“From now onwards, a large volume of customers have the option of Time of Use Tariffs and through this, the peak load demand could be shifted to off-peak, which will help to implement the demand side management initiatives as well.”
Registration of electric motor cars in Sri Lanka has increased from 90 in the year 2014 to 3238 in the year 2015. It is estimated 4,000 electric vehicles are currently on the roads.
According to the introduced ToU, a consumer will be charged only 13 rupees per unit in the off-peak hours (22.30- 05.30 hrs), 25 rupees per unit during the day (05.30-18.30 hrs) and 54 rupees per unit in the peak (18.30-22.30 hrs). A monthly fixed charge of 540 rupees will be also applied to the ToU consumer.
The Government recently directed PUCSL to be the regulator for the EV charging industry, through a cabinet decision, with a view to ensuring the rights of EV Users are protected.
For further information, please contact:
Assistant Director – Corporate Communication
Mob: – 0718622800
Email: [email protected]
We have been generating greenhouse gases at the rate of 15 million tons of CO2 equivalent in 2012 which is equivalent to 244t per square kilometer, while the global average was only 62.35t per squar km. Even if we take only the land surface of the earth which is 30% only, the global rate was 207t per squar km. If we consider the atmosphere above our land area only, we have increased the CO2 concentration in the air by 16.3ppm while the global average increase was only about 4ppm in 2012.
So we are polluting the atmosphere above us at a much higher rate than the global average. What contributes to this high rate? It is transportation which contributes to almost 50% of this. Even Prof.Joseph E. Stiglitz, the Nobel Laureate who was invited here to address the Colombo Economic Forum, recommended that we should introduce a carbon tax which would raise considerable revenue.
How much does a car doing 15000km/yr at say 10km/litre of petrol pollute the atmosphere in Sri Lanka?
In one year it emits 3960kg of CO 2 , 1080kg of H 2 O vapour and about 1173kWhrs of heat energy.
So you are saving the Sri Lankan environment from CO 2 emissions leading to global warming, heat emissions again leading to global warming and water vapour emissions which could precipitate in an accumulated fashion – over time and over space – and create flooding and landslides.
Then on the economic front: You are saving the wasteful expenditure of foreign exchange brought into the country due to the sweat of the girl working in an apparel factory, a tea/rubber plantation worker or somebody working as a domestic aid in the Middle East.
See how the dreams of these foreign exchange earners have evaporated during the last 15 years.
While foreign exchange earnings from exports – say apparel increased from Rs. 155 billion in 1999 to Rs.583 billion in 2013 –a 4 fold increase – the fossil fuel import bill increased from Rs. 28 billion in 1999 to Rs. 540 billion in 2013 – a near 20 fold increase.
So as long as we keep on using oil, the dreams of these people will never, ever materialize.
So you have taken the first few steps in making those dreams come true.
Probably – most probably – our using increased numbers of BEVs may have prompted even the oil prices to remain this low. The oil marketers probably know that if they increase the price of oil, this Sri Lankan example – example provided by you all – could spread much, much faster in Sri Lanka itself and spread even in other countries. So they would prefer to keep the prices low. So you should get the credit for that 11% reduction in oil import bill we have experienced.
So you had taken the initial few steps to create a cleaner environment and a much better economy for future Sri Lankans.
By – K.C.Somaratna
How many times have you done fast charging of your LEAF? Not yet tried it? Or Are you afraid to fast charge your LEAF? If you are a LEAF owner you would probably have answers to these questions. Whatever the creed you are in, fast charging or non-fast charging, it will be helpful for you to understand the underlying mechanism and the real facts in order to drive your LEAF that extra mile.
ome LEAF owners prefer to use fast charging. You don’t have to wait quarter a day to juice up your LEAF as in normal charging. It really helps to travel you farther. At present the fast charging prices in Sri Lanka is at an affordable range for the sake of many competitive service providers. Some LEAF owners refrain from fast charging due to various reasons. It affects battery life. You can save more money by using normal charging. Normal charging gives you more safety. So let’s go deep and see what are the facts and myths.
In the normal charging, the outside charger supplies 230V AC voltage to the LEAF’s charging port. The 230VAC to 400VDC conversion to charge the batteries is done in the onboard charger inside the vehicle. Hence the capacity of the onboard charger is limited to 3.6kW or 6.6kW to reduce the weight and cooling requirement. In the fast charging, the outside charger does the power conversion from AC to DC and a DC current at battery voltage is connected to the LEAF’s fast charging port. Onboard charger is not connected in fast charging but a large number of safety features has been implemented in the vehicle. Since the bulky AC to DC converter is in the outside charger in fast charging, very high power requirements could be achieved with faster charging rate and short charging time.
The fast charging standard in Nissan LEAF is called CHAdeMo. It is commonly accepted standard in Asian region. Nissan, Mitsubishi and KIA directly use the CHAdeMO standard for the fast charging and TESLA also supports CHAdeMO standard with the use of a converter. You could easily identify the CHAdeMO port in LEAF which is located alongside your normal charging port. You could only fast charge your LEAF with a charger compatible with the CHAdeMO standard. In the CHAdeMO standard many safety features have been implemented in both vehicle and the charging station. For an example the limits of the required current are defined for the fast charger and if this limit is exceeded by the charger, the vehicle will immediately stops the charging. So if you are worried about the safety in fast charging, let’s say it is as safe as the normal charging.
The fast charging in the context of LEAF varies from about 10kW to 50kW. That means the charging current varies from 25A to 125A and charging time from 75 minutes to 20 minutes. When the current is flowing through the battery pack in charging or discharging, the cells get heated up due to the inherent internal resistance. That is the reason for the increase of battery temperature while you drive fast. In fast charging the battery temperature also gets increased due to the high current flow. So if you are going to fast charge immediately after a highway drive or going to drive very fast immediately after a fast charge, keep your eye on the battery temperature bar. Exposing the batteries to high temperatures constantly will reduce the battery health. It is a good practice to drive economically after a fast charge and keep your LEAF a while before fast charging if she’s too hot. That’s a fact you cannot avoid.
In normal charging you can charge your LEAF up to 100% and you may have noticed the last 20% usually takes more time to charge. If you have used eStation charger, you could see the charging current gradually reduces after the 80% level. This happens due to the charging cycle of the Li-ion battery and the cell balancing of the Battery Management System (BMS). The cell balancing is required in the last states of the charging in order to prevent cells from overcharging. When you are using fast charging, it will be healthier for LEAF if you charge only up to 80%. The cell balancing may not be properly obtained at high charging rate and may affect the battery health if you are frequently fast charging more than 80%. So keep in mind the 80% limit in fast charging you LEAF.
The most important fact is fast charging is not recommended by Nissan as the main charging medium for LEAF. That means even it saves lot of time and hazel, do not go for only fast charging instead of normal charging. The fast charging is given as an option for convenience which you could use if you are travelling longer distance than LEAF’s range. As a LEAF owner you don’t need see fast charging as a beast waiting to destroy your beloved LEAF and don’t always get it as a detour which saves your time. Be aware of the pros and cons and use it for the quality of ride with your ever loving LEAF.
chargeNET Pvt. Ltd.
What are Plug-In Vehicles? Plug-in vehicles are vehicles that can be plugged in with an electric power cord and get some or all of their energy from electricity, instead of gasoline. There are two kinds of plug-in electric vehicles (PEVs). Battery electric vehicles (BEVs) get all of their energy from electricity. Plug‐in hybrid vehicles (PHEVs) use both electricity (from a plug) and gasoline. Standard hybrid cars (HEVs) do not have a plug and still get all of their energy from gasoline.
Thanks to the power of innovation, plug-in electric vehicles now work for virtually all lifestyles and budgets.
- Affordability: On average, fueling up when you drive electric is half the cost of a gasoline car, thanks to PEV’s performance efficiency and the lower cost of electricity. Electricity prices are also far more stable than gasoline prices, allowing drivers to avoid the risk of future price spikes.
- Air Quality: Air pollution is the largest environmental health hazard in the world. PEVs emit no air pollution and don’t even have a tailpipe. It’s estimated that PEVs could reduce deaths from air pollution by 70 percent!
- Convenience: PEVs never require a trip to the gas station, tune‐ups, transmission repairs, spark plugs or oil changes. What’s more, a typical PEV has ten times fewer moving parts than a gasoline car. There’s no engine, transmission, spark plugs, valves, fuel tank, tailpipe, distributor, starter, clutch, muffler or catalytic converter. So you can expect significantly lower maintenance costs.
- Environmental Stewardship: PEVs powered by the grid currently produce 54 percent less (lifetime) carbon pollution than gasoline cars, which could grow to 71 percent by 2050 as our power supply gets cleaner. Even better, putting solar panels on your roof drops your car’s carbon pollution down to zero.
- National Security: Our addiction to oil has huge national security implications.We. import around $1 billion of foreign oil every year (!) with 2/3 used for transportation. Every time you fill up your car, you are sending a check to foreign countries to pay for their oil. Why not send your money to the local electric utility or your neighborhood solar installer instead?
- Performance: Plug-in cars offer a quiet, smooth and powerful ride. An electric motor provides full torque from a standstill and completely changes the experience of getting onto a fast‐moving freeway.
EV Club has been having a dialogue with Public Utilities Commission of Sri Lanka (PUCSL) during the last few months about the difficulties faced by EV Users as well as Charging Service Providers in obtaining services required for EV Charging.
PUCSL was very attentive to our concerns and PUCSL has started work to enhancing their regulatory framework to include EV Charging as a new industry/requirement. The current regulations have been formulated around providing electricity to a fixed premises for a single purpose. In order to address the electricity connection requirements of EV Users and EV Charging Service Providers a new regulatory framework is required.
To support our cause, we have provided some proposals in writing to PUCSL at a meeting held on 08 December 2016.
We prepared this proposal based on our members’ inputs, results of surveys we conducted and we have discussed details in this proposal with several individuals and organizations who invested on Electric Vehicle charging stations their feedback also considered when preparing this.
More information/outcomes regarding these will be published in the coming weeks.
If you have more suggestions’ to add please send them to [email protected] we always can bring them to upcoming discussions.
A charging station for electric cars was declared open at the Kelanitissa Power Plant on Thursday October 20, under the auspices of the Minister of Power and Renewable Energy, Ranjith Siyambalapitiya.
Following the opening ceremony of the charging station, steps were taken by the Ceylon Electricity Board to introduce a post paid card system at the station.
Speaking at the event, the Minister said, steps were taken to introduce a charging station for electric cars under an affordable price scheme. The minister said that once one obtains an e-card from the Ceylon Electricity Board one can easily go to the station in order to charge the car, where the payment will be in an easy payment scheme.
“We know that various prices exist in the market. In the future, we hope to introduce a similar price range for the private sector as well, and increase the facilities available for the usage of electric cars”, he added.
He went on to note, six such charging stations would be established across the country in the near future.
Vega is Sri Lanka’s ambitious initiative to develop and manufacture a world class high performance electric sports car. Once completed, the car will reach 0 to 100 kmph under 4 seconds, a 240 km range, and a top speed of 240 kmph. It will join a small list of high performance cars in the world, and be an absolute technological marvel for all of Sri Lanka.
Been developed through a consortium of experts in the private sector and government universities, this project encompasses a large set of Sri Lankan experts from all over the world. Vega wants to build a unique culture in Sri Lanka where experts from different areas can be brought together readily, and then be tasked to handle complex engineering projects to success.
With the dawn of the electric vehicle era, expertise for vehicle development has focused on electronics, software, battery and motor technology. With world class experts in Electronics and Electrical engineers in Sri Lanka, we are uniquely positioned to take advantage and take the lead on electric vehicle and electric vehicle component development. Before, combustion engines required a focus on mechanical engineering, tooling, iron casting and other technologies that Sri Lanka was not focused on. But with electric vehicles all that has changed, the focus on electronics an
d software is where we shine. We must build the eco system needed to grab this opportunity to become an electric vehicle hub of the world. There are many reasons why Sri Lanka can be successful in the electric vehicle industry
- Paradigm shift from combustion to electric vehicles has increased the need for complex electronics in the vehicle. Sri Lanka has the high level of graduates in Electronics and Electrical field to be competitive.
- High performance cars are not mass produced, but most are limited edition handmade vehicles. It is labor intensive, and expensive for countries with high labor costs.
- With more than 50 micro-controllers in a new vehicle, the need for vehicle software will grow exponentially with time. Sri Lanka’s thriving software industry can take control of a major portion of that world market.
- With high fuel costs, converting to electric of existing vehicles will be economically viable. A whole new industry can be brought to life, with retrofitting existing vehicles, EV vehicle service stations, EV charge stations etc.
- With a 10x increase in efficiency of using electricity to drive a vehicle vs burning fuel to run an internal combustion engine, it will save the government billions of dollars on fuel imports. This also means it takes only 10% of the fuel used for vehicles today to increase the amount of electricity needed to run the same vehicles with electricity.
Looking on the technical details of VEGA, this beast is powered by a 330V and 40kWh LiFePO4 battery pack with an active cooling system. The total discharge current in peak performance is 1200A. The two rear wheels are independently driven by Permanent Magnet Synchronous Motors (PMSM) each with 450bhp. There is no mechanical differential to distribute the power to two wheels. Both wheels are independently controlled with an electronic differential in order to achieve more stability and traction. The chassis is designed with a space frame structure in order to achieve the rigidity and safety. The body panels are made out of carbon fiber since high strength to weight ratio is really important for the light weight. The total weight of the car will be around 1600kg. The body design is optimized through aero dynamic simulations to achieve sleek design as well as top speed.
There are enormous benefits to reap from building an electric vehicle industry in Sri Lanka. First the multi-disciplinary aspect of the industry will create job opportunities for a wide variety of Sri Lankan student graduates. It will spawn interests in new research and curriculum, bringing a renewed value to our technology education hub. Having the technology to convert existing combustion engine vehicles to electric cars will have the potential to save US $2.5 billion in fuel imports. By converting to electric, we will eliminate toxic environment pollution, and be able to provide a safe environment for our generations to come. Once the technology is mastered, we will be capable of developing other electric vehicles from mass transport, to 3 wheeled people movers. Having a world class vehicle manufacturing capability in Sri Lanka, we will save billions of dollars per year on foreign vehicle imports to the country.
Sri Lanka’s state-owned electricity service providers are now offering domestic time of use (TOU) electricity tariff for cheaper charging of electric vehicles.
“During the off-peak hours only Rs.13 is charged per unit, which is a fair amount for the electric vehicle charging purposes,” a Public Utilities Commission of Sri Lanka (PUCSL) statement said.
The off-peak hours run from 10:30 p.m.-5:30 a.m. Tariffs during daytime hours of 5:30 a.m.-6:30 p.m. will be Rs.25 per unit and Rs.54 per unit will be charged during peak hours between 6:30 p.m.-10:30 p.m.
The new tariff scheme is an alternative tariff system for domestic users who consume a three-phase, 30 A or above power supply.
“Those who wish to upgrade their customer category from the existing domestic category to TOU tariff should apply it from the regional area engineer’s office of their service providers (Ceylon Electricity Board (CEB), Lanka Electricity Company Private Ltd (LECO)). Such customers should pay for the new meter which is required to support the TOU tariff,” PUCSL said. The PUCSL said that those opting for the new system would contribute in lowering peak time consumption and increasing off-peak consumption.
This would help balance the loads in the coal power plants Sri Lanka increasingly depends on. Stopping and restarting coal-fired plants between peak and off-peak times is time consuming and causes energy wastage.