PV Grid-connected System
This is the most commonly installed Solar System across New Zealand. Solar power is produced during the day and supplemented through mains power at night.
Grid-connected is recommended for any first-time-solar residential homes.
Here's how it works:
North facing Photovoltaic (PV) Panels are placed on the roof for maximum energy cultivation
The PV cells contain semiconductors that absorb the sun's radiance, turning the light into direct current (DC) energy.
A solar inverter converts the DC energy into alternating current (AC) energy.
A service panel then distributes power wherever needed within the building.
An import/export meter is installed which tracks extra electricity bought from the grid, and any excess solar energy is sold back to the utility company.
Any excess energy produced during the day gets sent back to "the grid" in return for a small payment from your power company. This is known as a Solar Buyback
Off-grid Solar PV System
An off-the-grid system allows the user to live independently without support from the power grid. All electricity is locally produced, stored, and consumed. It is entirely self-sustaining living. We recommend off-grid to those living in remote locations, or a commercial lot.
At Endless Energy, we understand that our clients have different needs and expectations. We offer a variety of residential, industrial, and commercial solar energy solutions in Christchurch and the South Island.
Because an off-grid solar system is not connected to the main power source, solar power is stored in personal batteries for use at night, and when the sun is not producing a sufficient amount of power.
Connecting a PV system to batteries makes sense for people who wish to live completely self-sustainably; those in remote locations where grid power is difficult to access; and those using significant amounts of power daily (i.e. on farmland, commercial etc).
However, batteries can add significant cost to a system’s instalment and require a level of maintenance that would be unattractive to most ordinary homeowners.
A microgrid solution gives you and your community the power and flexibility to choose to be connected and/or independent from the national grid. Every microgrid system we design is unique and tailored to your specific requirements.
A microgrid is a combination of a grid-connected and off-grid system. Microgrid systems are small-scale versions of an electrical grid where power is locally generated and distributed amongst the participating users.
A good example is a microgrid in a rural community where solar energy is produced and shared among a group of neighbours with various solar system sizes. Microgrids are able to operate in island mode where it gets disconnected from the utility grid (such as during an outage), or in grid-connected mode.
There are different variations of microgrids, one being a stand-alone which only operates off-grid.
Microgrids can be used in a variety of settings, such as remote or rural communities, industrial and commercial campuses, military bases, and disaster-prone areas.
They can provide reliable and efficient energy service, improve energy access, and reduce greenhouse gas emissions.