Residential Solar Systems

Standard Grid Connected Solar Energy System

A standard residential grid connected solar energy system is the most economical way to begin generating your own energy and offsetting your network usage. Instantly start saving dollars on your power bill as soon as your system is operational. We will assess your energy consumption patterns and from this design a system that will give you enough energy to cover your average daytime usage.

With a standard grid connected system, a series of solar modules is connected to one PV inverter – this conventional system converts the suns energy into usable electricity in your home. Any excess energy is exported back out to the grid through your import/export meter. Your energy retailer pays you per kW for all exported units. Shop around for the best option for your household as there are many different combinations of tariffs and buy back rates on offer.  

Single and multi-phase systems are available as well as grid connected commercial 3 phase solar plants. We use a range of quality solar inverters and modules. Our team will design a system that we feel is the best solution for you. All of our systems are custom designed to meet our clients requirements with the only limitation being your available roof space.

Enphase Micro Inverter Solar Energy System

Instead of one inverter connected to all solar modules, an Enphase Micro inverter system has individual inverters under each solar module. This allows each panel to operate at optimum production levels with shading being of less concern. Micro inverters produce more in low-light conditions offering a longer solar production day and higher efficiency. Because they operate independently, they are perfect for homes with multiple roof faces and varying orientations. Because of their unique independence you can also grow your system at a later date by simply adding more solar modules and micro inverters – the new micro inverters will integrate and communicate with your systems ENVOY hub seamlessly.  This expansion is not easy with a standard string system, however, micro inverters are a great way to introduce more solar to an already existing string system. You can also add an Enphase Lithium battery to extend your solar consumption into the evening and offer some circuits backup support in a network outage.

AWARD WINNING ESS Battery Supported System

This grid connected property has a residential home and a workshop that relies on a constant energy supply. The owners brief was to supply a system that offered battery backup during grid outages and also ran in self consumption mode to support their daily requirements reducing their use of the local network. This ESS SYSTEM offers much more than a standard hybrid system as it can supply larger loads and run indefinitely in backup mode very much like an off grid system. The choice of inverter is essential when designing this type of system. In this project we used a Selectronic Inverter Charger paired with Fronius Selectronic Certified PV Inverters. The owners are very happy with the outcome and performance of this system. This project proved worthy of recognition in this years SEANZ awards receiving “runner up” in the Best Grid Connected PV System category.

What the judges said –
This property on a challenging hillside location has a large load that supports a house and a workshop that operates grinding and polishing equipment around the clock for the owners business. Good Energy provided a ground mount pv system incorporating 60 kWh of lithium storage providing the site with approximately 2 days of autonomy.

• “Very complex logistics in this cliff-side installation”
• “A great looking solution”
• “The complexity of the installation, the challenges of the site, and the high quality of the workmanship make this worthy of recognition”

Read the article in this weeks Whitianga  INFORMER  Tairua Project wins commendation for Good Energy property installation – The Coromandel Informer (theinformer.co.nz)

Hybrid Solar Energy System with Battery Backup

Instead of exporting excess generated energy back to the grid, a system that includes a lithium battery bank stores that extra energy in the battery ready to be discharged into your home as required day and night. This greatly increases your energy self-sufficiency giving you more autonomy from the local grid. Careful consideration on system and battery sizing needs to be taken into account to maximise the benefits of self-consumption. Once your battery bank has been fully charged any excess energy not used in the home is then exported back into the grid where your energy retailer pays you per kw for all exported units.

Unlike other grid connected solar systems which automatically shut down during a network outage, a hybrid system allows you to keep generating and consuming energy when the local grid fails. In HYBRID mode your system will support essential loads such as fridge and freezer, until the grid comes back on or the battery bank is depleted.  Hybrid systems also work in self consumption mode, offering the household use of stored energy in the evenings giving you even better returns on your investment. Preset levels can be programmed into the system to allow for energy to be stored in case of network outage events.

In some cases we recommend installing the solar system on your roof first and allowing up to 12 months to assess your solar generation, consumption patterns and amount of exported energy.  Based on this data we can recommend the appropriate lithium battery for your household without over-sizing or over investing.  It is important to have enough solar generation to charge the battery bank sufficiently, so having the right balance in the system design is essential. Small solar systems are not suitable for use with battery storage.  A range of hybrid options are available – we work with you to design a customised system based on your consumption and backup requirements.