Leading PV Solar Energy Provider
We supply quality, PV solar energy systems to the residential, commercial and industrial markets since 2010.
A Solar PV (Photovoltaic) system uses the sun to generate electricity during daylight hours and therefore have no continual costs involved once the system is installed.
Currently, solar energy delivers between 18% to 25% return on investment per year based on electricity savings, outperforming any other financial investment you make. Investing in a solar energy system to save on your electricity bill is the best investment you can make right now for your business or home over the next 20-25 year period.
A solar PV system typically comes in three configurations:
Grid Tied Solar System
No batteries required. This grid connected system supplements your grid energy usage and is a very good option for reducing your electricity usage from the grid. In the event of a blackout or power outage, your solar system is forced to shut down. While Eskom’s outages are not the issue, but cost savings most certainly are. That is why this highly practical solution dramatically reduces your electricity bill while producing all your daytime energy requirements, free from the sun, avoiding the additional expenses of having a battery system. A Grid tie system is highly cost-effective and has a much shorter payback period. A popular choice for starting out with your first solar energy solution. This system starts paying for itself immediately.
Advantages
- Most cost effective solution – offers best savings
- No energy storage losses
- Easily monitored system performance
- Extremely high conversion efficiencies
- Simple installation
Disadvantages
- Does not provide backup
Hybrid Solar System
Grid connection and batteries are commonly referred to as a hybrid system and, with the correct installation, will act as a UPS (Uninterrupted Power Supply) in the event of a power outage. The PV system will first charge up the batteries and then the excess production will supplement your household/ business energy needs.
Many of our clients start with system 1, with a plan to build up to a system 2 and then add battery back-up at a later stage as their budget allows to build up to a system 2 configuration. The great benefit of solar PV is that it’s entirely scalable and you can add to it as your needs grow. Clients typically opt for this when power outages are an ongoing issue
Advantages
- Can operate independent of the Grid
- Available in various configurations
- Reliable supply of power when using with a generator
- Fast switch over in case of power black-out
- Supplies power even if no grid is available
Disadvantages
- Battery daily cycles could shorten battery life
- Batteries need to carry 3 days autonomy
- Quality batteries are expensive
- Batteries lifespan is less than that of Inverter and PV Modules
Off-Grid Solar System
An off-grid solar system is useful for areas where no grid exists – such as farms or rural areas. Energy produced will charge up the batteries which should allow for three days’ worth of energy needs, feeding the power requirements of the property.
Advantages
- Can operate independent of the Grid
- Available in various configurations
- Reliable supply of power when using with a generator
- Supplies power even if no grid is available
Disadvantages
- Battery daily cycles could shorten battery life
- Once batteries are fully charged the PV power is dissipated
- Batteries need to carry 3 days autonomy
- Quality batteries are expensive
- Batteries lifespan is less than that of Inverter and PV Modules
Backup Power System
Backup power systems uses an inverter and batteries to supply power to critical loads when there is a power failure. The supply of power when the grid fails is almost instantaneous making it the perfect option for powering household appliances and office equipment.
Advantages
- Instantaneous supply of power when grid fails
- The system protect appliances and equipment from power surges
- Most systems can be converted to solar at a later stage
- The system size can be increased as the demand changes
- Backup systems require very little maintenance
Disadvantages
- Backup inverter system does cost more than generators
Generator System
Generators are used in case of power failures to supply power the equipment where the start up delay from the generator is not a concern. They are typically used where high loads are expected and is less expensive to install compared to Inverter Backup systems.
Advantages
- Less expensive compared to Inverter Backup systems
- Bigger generators take up less space than the same size Inverter system
Disadvantages
- Generators are noisy and have to be installed in well-ventilated areas
- Generators have a time delay between when the grid fails and when the generator supply starts
- The generator has to be serviced annually or after a certain amount of running hours
- Increasing the size of a generator backup system is not always possible
Various Finance Options Available:
Bond Finance
This option suitable for residential and commercial property owners
Advantages
- Affordability is one of the biggest advantages of bond finance as the terms allow for very low monthly payments in comparison to traditional finance options that run over shorter terms.
- Flexibility is key with bond finance as the customer can decide to pay extra when they can afford to do so and save on interest.
- Property values over the long term tend to grow, especially if funds are applied on improvements or off-grid solutions, which cancels out the debt incurred.
Rental Option for business
Instalment finance for businesses
Power Purchase Agreement (PPA)
Contract lengths typically range between 10 and 20 years, with this duration governing the rate as well as the annual escalation. We aim to provide immediate savings by providing a rate lower than the municipal tariff.
During the entire contract period NrG will own the system, performing all Operations and Maintenance thereby taking on all performance and technology risk.
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