E - Mobility

Electric Car Battery Charging

The increase in electric cars means the load on electricity

systems are also on the rise. This poses a problem for electric

utilities as also for Charging clusters around the world. New

electric vehicles are capable of storing approximately

100-kilowatt hours (kWh). Compare that to the electricity

usage of an average home is approximately 25-kilowatt hours

(kWh) per day. This means the electricity grid will need to

support an increase to four times the current load.

Local distribution grids are not built to accommodate the

huge spikes in demand where electric cars will be particularly

prevalent. Transformers, which connect every home and

business to the power grid, are the most vulnerable and affected elements of the system. Most residential transformers serve between 10 and 50kVA of load, a single plug-in vehicle (PEV) with a 240V (Level 2) charging system consumes approximately 7kVa.

Add more than one electric car to the same local transformer (charge clustering) and overloading is more likely to occur. This causes damage to the electrical equipment which reduces the lifespan and can result in outages and added costs. The risk of overloading local transformers is particularly high during peak hours. When all electric vehicles owners in a single area recharge at the same time.

Utilities and Charging services companies deploy YIVO platform to auto manage demand surge due to excess load from battery charging. Benefitting from YIVObot’s capabilities to make other local loads ‘flexible’, the YIVo platform is an essential demand-side management solution for utilities to ensure a smooth functioning distributed smart grid. The platform also helps charging services companies to avoid peak tariff charging, avoid demand penalties, and supports plug-ins to third party service apps for differentiated services like 100% green charge, non peak low cost charging, slow charging for long battery life and others.