Tiempo Climate Cyberlibrary

Electric Vehicles in Nepal

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	Megesh Tiwari discusses the development of the use of electric vehicles in Nepal and current initiatives that are expanding their use across the transport sector.
The author is a research officer with Winrock International, Nepal.

Modern civilization is based on an economy that depends heavily on an adequate supply of energy. There has been a huge reliance on fossil fuels to meet the energy needs for the industrial, household and transport sectors throughout world society. These resources are, however, limited and global discussions have begun on how long they will last and what alternatives are feasible.

According to the United States Energy Information Administration, the world demand for oil in 2005 averaged 83.7 million barrels per day. The forecast for consumption through 2006 is 85.3 million barrels per day and for 2007 it is 87.2 million barrels per day. Between 2003 and 2005, there was a 2.22 per cent growth in the demand for oil. If this growth rate persists then efforts to meet the increasing demand will, apparently, cause worldwide oil reserves to be drained by 2028. We are very close to depleting global oil reserves on the supply side and will be increasingly prone to harsh economic pressures on the demand side.

Historically, Nepal has imported all of its petroleum products and relies almost entirely on fossil fuels for transportation. This sector depends heavily on imported oil from India. Oil prices increase every year with the result that the Nepalese government has to continue, and has even had to increase, the amount of subsidy being provided. Cross-border price differences have also given rise to the smuggling of cheap oil from Nepal to India. These factors, amongst others, have resulted in a drain on the foreign reserves of the country which come from hard-earned public revenues. This, in turn, causes Nepal to become poorer by the day.

It is high time we utilize fully the possibilities in energy alternatives so we can survive the tremendous economic threat inherent in the impending oil crisis.

The transport sector is the largest consumer of petroleum products in Nepal and is also a major economic driver. This is a significant incentive for Nepal to be more electricity oriented in meeting its energy needs. Hydro resources in Nepal have the capacity to generate 42,000MW of electricity. In view of this, it is obvious that hydroelectricity is the best alternative energy source that can meet the energy demands of the transport sector. A massive increase in the electrification of the transport system can be achieved through the utilization of Nepal's hydroelectricity potential.

Most hydropower plants in the country are of the run of the river type and have a low grid load factor (that is, low efficiency of use) with a huge chunk of electricity going to waste during off peak hours (night time). There are major possibilities for using this unused electricity to charge batteries that can be used to operate battery-powered electric vehicles during the day time.

There is, in fact, a long history of transport powered by electricity in Nepal. In the 1960s, the first electric ropeway was installed to transport goods from Hetauda in the south to Kathmandu. A ropeway is a rope or cable-based transport system used in mountainous areas. The ropeway system consists of steel cables connected to poles with passenger/goods-carrying gondolas sliding along the cable. This traction system can be powered either manually or by a motor.

In 1975, the government of the People's Republic of China installed the first electric vehicles used for public transportation in Nepal, a 13km-long electric trolley bus system with 22 buses to start with. In 1997, ten more buses were granted by the Chinese government to meet the increasing passenger demand. These electric trolley buses provided an excellent and dependable service to commuters.

Though the electric trolley bus system has been running for the past 30 years, a lack of proper maintenance and management is now ruining this once highly-accredited service. Most of the buses have been grounded, primarily through a lack of available spare parts. The service has been reduced to a 5km-route, with only three buses at present.

Organizations such as the Kathmandu Electric Vehicle Alliance (KEVA) and Winrock International, Nepal, have offered assistance in the areas of technology, business development, awareness raising and policy advocacy to revive the ailing electric trolley system. But what the trolley bus requires at the moment, to rehabilitate the system, is a competent management structure to operate under an innovative business plan that maximizes investments. The electric trolley bus system could reclaim its popularity if operated under a public-private partnership. Initiatives are ongoing to develop such a partnership, thereby recreating a successful electric trolley bus-based public transport system in Kathmandu.

The development of battery-operated electric vehicles started in 1993 when the United States-based Global Resources Institute, with funding from the United States-Asia Environmental Partnership, the National Association of State Development Agencies and USAID/Nepal, started the work of converting commonly-available diesel three-wheelers into battery-operated three wheelers.

Commercial manufacturing of battery-operated electric three-wheelers, commonly known today as 'Safa Tempos', began in 1996 when a private company called the Nepal Electric Vehicle Company was established. Production of Safa Tempos boomed after the government decided to ban the ultra-polluting diesel-operated three-wheelers from the Kathmandu valley. Most of these polluting three-wheelers were converted into Safa Tempos.

A decade later, the number of Safa Tempos running in the streets of Kathmandu has exceeded 600 and the number of these vehicles is continually increasing. Whilst most of these Safa Tempos operate within the public transportation sector in Kathmandu, many also operate as office vehicles, maintenance vehicles, tourism vehicles and waste collection vehicles. Safa Tempos are also being used widely in Nepal by ministries, diplomatic organizations, donor organizations, municipalities, media organizations and public and private organizations.

Most Safa Tempos are used to ferry commuters within the Kathmandu Valley. Each Safa Tempo travels a distance of 100 to 120kms each day on two sets of batteries. A battery set contains twelve six-volt deep cycle lead acid batteries with a full charge capacity of 185 ampere hours. These batteries on full charge show 77 to 79 volts, then discharged to 72 volts during operation. After the first set of batteries has completed 50 to 60kms, the Safa Tempos return to the charging stations where the other battery set is loaded onto the vehicles for an additional 50 to 60kms of operation.

Through this system, Safa Tempos have been providing a cheap and dependable form of transportation to the people of Kathmandu. On average, 100,000 passengers travel by Safa Tempos every day. For its size of city, Kathmandu most probably uses the largest fleet of electric vehicles for public transportation in terms of the ratio of electric to fossil-fueled public transport vehicles. Four new Safa Tempos with enhanced features are currently being manufactured to meet the tourism industry's need for clean transportation.

With the demand for electric vehicles obviously growing as an alternative to fossil-fuel driven vehicles, the private sector's interest in manufacturing second-generation electric vehicles with an alternating current drive system and four wheels, instead of three, is also expanding.

Recently, five REVA electric cars were imported from India into the country through private organizations. REVA is an electric car company based in Bangalore, India, and is the only car from India to have received European Union certification.

Hulas Motors, the only automobile manufacturer in Nepal, came out with its first five to ten passenger electric van on March 23rd of this year. This model is the electric version of the regular model, the Mini V, manufactured by the company. This electric vehicle is owned by and is being used as an office vehicle by Winrock International, Nepal. Other local electric vehicle manufacturers are also working on four wheel and alternating current drive-based electric vehicles.

Hulas Motors will soon enter into commercial production with the vehicle, running under the name of Mini EV. The four-wheeled vehicle will be a five to ten passenger van that can be used for private as well as public transportation.

The vehicle is based on an 84 volt system and uses fourteen pieces of six volt lead acid batteries. It uses an alternating current drive system and has the added features of on-board charging, regenerative braking and a multi-gear system, amongst other facilities. It is competitively priced alongside the company's regular models and it is bound to find markets for use in public and private transportation, as office vehicles, school vehicles, hospital vehicles, and in many other sectors of society. Vans are a popular mode of public and mass transportation in Nepal, which should ensure that the Hulas Mini electric vehicle grabs a significant share of this market.

Prospects for Nepal in sustainably developing its own electric vehicle industry have been strengthened in that Nepal's closest neighbours, China and India, have made a lot of progress in the development of electric vehicles.

Electric two-wheelers are already in commercial use in some cities in China. China is working for the cleanest and greenest Olympics ever in 2008 with the use of a large number of electric vehicles in Beijing. A wide variety of electric vehicles ranging from electric scooters, cars and vans to high-capacity electric buses and hybrid buses are being manufactured in China. Tinajin Qinyuan Electric Vehicle Company in China has developed a five-door mini-car called the 'Happy Messenger' that looks just like any gasoline car fit for city driving. Bus companies such as the Shanghai Sunwin Bus Corporation are manufacturing battery-operated electric buses and trolley buses.

In India, alongside REVA, Scooters India Ltd has developed several models of electric three-wheelers. Bajaj Auto Ltd is about to commercialize the electric version, 'EcoRick', of its popular three-wheelers in the near future. Bigger companies like TATA and Ashok Leyland are working to manufacture trolley buses and other electric vehicles. BHEL, a public sector company, has made electric buses.

Most electric vehicles in Nepal use lead acid deep cycle batteries to power the motors. The most popularly used battery is the Trojan 125 which is manufactured in the United States. The Nepalese electric vehicle industry has found Trojan batteries to be consistent and reliable in performance. A local battery manufacturer also manufactures lead acid batteries. Even though the company manufactures both flat and cylindrical plate batteries, these have not found popularity due to their relatively poor performance.

According to a survey conducted by KEVA, the average life of Trojan 125 batteries, used by the Safa Tempos, was found to be 20 months or 550 deep cycles. Most batteries are watered with de-ionized water rather than distilled water. Three different brands of de-ionized water with electrical conductivities ranging from 0.2 to 1.3 are being used.

More than 35 battery charging stations have been established in Kathmandu to cater to the battery charging needs of Safa Tempos. On average, each charging station has 22 battery chargers. There is a mix of manual and automatic chargers in most of these charging stations. All of these chargers are manufactured locally by different companies and all chargers follow a constant current, constant voltage and constant current charging profile. The charging starts with 22 amperes and ends with two to three amperes. The battery voltage rises from 72 to 90 volts during this time. On an average, 15kWh of energy is consumed in this process. It takes 10 to 12 hours for one set of batteries to get fully charged.

In order to further promote the use of electric vehicles in Nepal, the government has reduced the customs duty on electric vehicle chassis imports by half. The excise duty for electric vehicles has also been waived. Very minimal custom duties in the order of one to five per cent have been applied for major electric vehicle accessories such as motors, controllers, batteries and so on. The batteries used for electric vehicles have also been exempted from Value Added Tax.

All these government incentives have encouraged private sector investment. These steps have established a secure and encouraging environment for foreign investors wanting to manufacture electric vehicles as a means to exporting to the huge markets in India and China. As a result, Nepal is witnessing a boom in the development and use of electric vehicles and there is no doubt that many more electric vehicles will be added to the fleet in coming years.

Disclaimer
The views expressed in this article are those of the author and do not explicitly represent those of the author's affiliated organization.

Further information
Megesh Tiwari, Clean Energy Group, Winrock International, Nepal, PO Box 1312 Kathmandu, Nepal. Fax: +977-1-4476109. Email: mtiwari@winrock.org.np. Web: www.winrock.org.np/cleanenergygroup.php.

On the Web
Nepal's Initial National Communication under the UNFCCC is available as a 2.8Mb download. The Tiempo Climate Cyberlibrary presents a listing of theme sites on mountains and climate change.