Earth: Refers to physically connecting a part of an electrical system to the ground, done as a safety measure, by means of a conductor embedded in suitable soil.
Earth-leakage circuit breaker (ELCB): A device used to prevent electrical shock hazards in mains voltage power systems, including independent power systems. Also known as residual current devices (RCD's).
Efficiency: The ratio of output power or energy to input power or energy, expressed as a percentage.
Electric circuit: Path followed by electrons from a power source (generator or battery) through an external line (including devices that use the electricity) and returning through another line to the source.
Electric current: The flow of electrons measured in Amps.
Electrical grid: A network for electricity distribution across a large area.
Electricity: The movement of electrons (a sub-atomic particle), produced by a voltage, through a conductor.
Electrode: An electrically conductive material, forming part of an electrical device, often used to lead current into or out of a liquid or gas. In a battery, the electrodes are also known as plates.
Electrolysis: A chemical reaction caused by the passage of electricity from on electrode to another.
Electrolyte: The medium that provides ionic transport between the electrodes of a battery. All common batteries contain an electrolyte, such as the sulfuric acid used in lead-acid batteries.
Electrolyte: Media yang menyediakan transportasi ionik antara elektroda dari baterai. Semua baterai umum mengandung elektrolit, seperti asam sulfat yang digunakan dalam baterai timbal-asam.
Energy density: The ratio of the energy available from an energy storage device such as a battery to its volume (Wh/m3) or weight (Wh/kg).
Energy payback time: The time required for any energy producing system or device to produce as much energy as was required in its manufacture. For solar electric panels, this is normally in the range 6-36 months.
Energy payback time: Waktu yang dibutuhkan untuk memproduksi energi apapun sistem atau perangkat untuk menghasilkan energi yang dibutuhkan dalam pembuatannya. Untuk panel listrik surya, ini biasanya dalam kisaran 6-36 bulan.
Energy: Power consumed multiplied by the duration of use. For example, 1000 Watts used for four hours is 4000 Watt hours.
Equalization charge: Periodical overcharging the batteries for a short time to mix the electrolyte solution in batteries.
EVA (Ethylene Vinyl Acetate): An encapsulant used between the glass cover and the solar cells in PV modules. It is durable, transparent, resistant to corrosion, and flame retardant.