Transnistria tram energy storage project bidding

Can ESS be applied to a tram system?

Economic feasibility of applying ESS for tram system The introduction of ESS can effectively deliver an energy-saving to the Supertram network, however the costs of the systems have not been addressed. Thus an economic evaluation has been conducted on ESS installations with different capacities and number of installations.

Can EVs be used as energy storage for the tram network?

Therefore, this research assumes that the tram service provider would provide the EV owners, who allow their EVs to be used as energy storage for the tram network, with incentives (e.g. discounted travel perhaps) to compensate for the extra degradation of the EV battery.

What happens if a tramcar is not present in a section?

However, if an accelerating tramcar is not present in the section, to prevent the un-used regenerated energy overly raising the catenary voltage and subsequently causing infrastructure damage, the surplus energy is dissipated as heat via the on-board braking / dump resistor; this is commonly known as resistive braking ( González-Gil et al., 2013 ).

Can parked EVs be used as ESS for a tram system?

Further, an economic study considers net present value, internal rate of return and payback period for a given ESS capacity; and a sensitivity analysis identifies capital cost and battery life as the most influential parameters to economic viability. Finally, using parked EVs as ESS for a tram system is explored to improve the economics. 1.

Can energy storage improve regenerative braking in a light rail system?

An energy storage system (ESS) is considered as an effective measure to improve regenerative braking and hence improve the energy balance of a light rail system, as it can store the un-utilized regenerated electricity and feed the stored electricity back to the supply network when needed ( Morita et al., 2008, Teymourfar et al., 2012 ).

Are separate and common OCS energy balances based on the same light-rail system?

The energy balance of separate and common OCS has been well investigated, but there exists little research that directly compares the energy balances based on the same light-rail or tram system.