How Solar Works

Solar Power is energy generated from the sun. In just one hour the sun generates enough energy to power the world for an entire year.

The sun’s rays are captured by solar cells and converted into electricity. This is known as the photo-electric effect.

Solar power is an abundant renewable energy source with the potential to supply the world’s energy needs. Solar modules produce most electricity when they are pointed directly at the sun, so it is important to install them so that they receive maximum sunlight. Ideally they should be in full sun at least from 9am to 3pm.

In New Zealand , solar modules should face north for optimum electricity production. For grid-connected systems the angle should equal the latitude to maximise the amount of energy produced annually. Latitude adjustments for grid connected systems in most climates fit within an acceptable roof pitch

Solar system components

  1. Solar Modules are installed on the roof or grounds of your property. They capture the sun’s energy and convert it into DC electricity.
  2. Grid Tie Inverter. The DC electricity is carried from the solar modules to the inverter, which converts the electricity to AC power. This is identical to the electricity you buy from the utility grid.
  3. Mounting &Framing Brackets. Used to fix the solar modules securely on the rooftop and come in tin or tile version.
  4. Cabling & Wiring . Used to connect the solar modules to the inverter and the meter board
  5. Solar Meter. A new solar meter may need to be  installed in your meter board to monitor the amount of power your solar power system generates.


  • 4kW Solar System Package
  • £3990
  • 14.8kW Average Daily Output
  • 13 x 285 watt (3.7kW) Tier 1 Canadian Solar panels.
  • 3.6kW GoodWe inverter with 5 year warranty
  • Quality panels and inverter
  • Clean Energy Accredited
  • Extended Warranties
  • Read more >
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The Latest News

Dollar Solar is delighted to be an appointed Dealer for OpalStorage. We believe the OpalStorage system to be the most viable Solar Storage system on the market. This is an all-in-one battery, inverter and panel solution. We use the market leading LG Chem Modular 6.5 kWh Battery in either a single or double configuration, that is 6.5kWh or 13kWh of storage. OpalStorage combines this great hardware, in one Cabi...
Both fortunately and unfortunately, we will be changing our 5kW solar system inverter supplier from Sungrow to GoodWe. Fortunately, because we consider the GoodWe 5kW inverter to be an upgrade to the Sungrow. All GoodWe inverters come with WiFi as standard with your solar data uploaded to the GoodWe monitoring portal every few minutes. Users can then view the results via a smartphone app or web browser. The a...
Recently Dollar Solar made the decision to offer ABB inverters as part of the standard package on our 10kW systems. Why? What’s so good about an ABB inverter? Well, for a start, let’s go back a little. ABB, as a company has some history. Lots of it. ABB can trace their lineage back to 1883 in Sweden, as ASEA and 1891 in Switzerland as Brown, Boveri & Cie. ASEA and BBC, also formerly kno...