Unless you have gone completely off-grid through a storage solution, you will need to pull some energy from the grid, especially at night, when your solar array is not producing.
However, much of this grid energy will be offset from the excess solar energy you generate throughout the day and in periods of lower usage.
An experienced solar developer can walk you through these benefits and help you explore if a solar solution is right for your business. The electricity generated flows to the edge of the panel, and into a conductive wire. The conductive wire brings the electricity to the inverter, where it is transformed from DC electricity to AC, which is used to power buildings. Another wire transports the AC electricity from the inverter to the electric panel on the property also called a breaker box , which distributes the electricity throughout the building as needed.
Any electricity not needed upon generation flows through the utility meter and into the utility electrical grid. As the electricity flows through the meter, it causes the meter to run backwards, crediting your property for excess generation. We use cookies to ensure that we give you the best experience on our website. Learn how energy from the sun becomes clean, green electricity that powers UK homes and businesses.
Photovoltaic cells are sandwiched between layers of semi-conducting materials such as silicon. Each layer has different electronic properties that energise when hit by photons from sunlight, creating an electric field.
Solar panels generate a direct current of electricity. This is then passed through an inverter to convert it into an alternating current, which can be fed into the National Grid or used by the home or business the solar panels are attached to. Solar panels react to the visible light spectrum.
But the stronger the sunlight, the more power solar panels will generate. Solar panels produce more electricity in summer, which can make it seem like they need warmer weather to work. SunPower solar panels are also encased with aerospace-grade conductive adhesives and proprietary encapsulants to protect these cells and minimize degradation from environmental exposure. PV solar panels generate direct current DC electricity. With DC electricity, electrons flow in one direction around a circuit.
This example shows a battery powering a light bulb. The electrons move from the negative side of the battery, through the lamp, and return to the positive side of the battery. Generators create AC electricity when a coil of wire is spun next to a magnet. AC electricity is used for the Australia electrical power grids that operate throughout the country and power thousands of homes.
However, solar panels create DC electricity. How do we get DC electricity into the AC grid? We use an inverter. A solar inverter takes the DC electricity from the solar array and uses that to create AC electricity. Inverters are like the brains of the system. Along with inverting DC to AC power, they also provide ground fault protection and system stats, including voltage and current on AC and DC circuits, energy production and maximum power point tracking.
Central inverters have dominated the solar industry since the beginning. The introduction of micro-inverters is one of the biggest technology shifts in the PV industry. Micro-inverters optimise for each individual solar panel, not for an entire solar system, as central inverters do.
This enables every solar panel to perform at maximum potential. Another option to consider is using micro-inverters on each of the panels. If one solar panel has an issue, the rest of the solar array still performs efficiently. First, sunlight hits a solar panel on the roof. The panels convert the energy to DC current, which flows to an inverter.
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