The Technology and Science Behind Solar

Unlock the power of advanced solar technology. Explore key features and specifications that enhance your system’s performance, durability, and efficiency.

Man smiling, resting his arms on top of a large solar panel against a blue background.
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Illustration of Solar Panels

Solar Panels

Capturing solar energy

Solar panels are the foundation of any solar system. Choosing high-quality panels ensures better energy capture, longevity, and consistent performance. The efficiency, durability, and warranties of these panels are critical to maximising the return on your solar investment.

Solar panels convert sunlight into electricity using the photovoltaic (PV) effect. Composed of many solar cells linked together, each cell is crafted from layers of silicon and materials that provide negative and positive charges. When sunlight hits a solar cell, it triggers the release of electrons, creating an electric current. This flow of electrons generates direct current (DC) electricity, which is then channeled for further use or conversion.

Solar panel efficiency measures how well panels convert sunlight into electricity. The most efficient panels on the market today can achieve conversion rates as high as 23%+, making them highly effective even in smaller spaces.

The power output of solar panels is expressed in watts, with most panels ranging from 400 to 600 watts, depending on the application. Wattage determines how many panels you'll need to fulfill your energy requirements efficiently.

All solar panels gradually lose efficiency over time. However, premium panels are engineered to degrade at a slower pace—less than 0.4% annually. This ensures that after 25 years, they still operate at at least 88.9% efficiency, prolonging the lifespan and effectiveness of your solar investment.

Solar panels primarily come in two types: monocrystalline and polycrystalline. Monocrystalline panels, made from single-crystal silicon, are more efficient and expensive. Polycrystalline panels, crafted from multiple silicon crystals, are more affordable but less efficient.

Beyond efficiency, solar panel reliability, durability, and substantial warranty coverage are vital factors. High-quality panels are designed to endure severe weather conditions, and comprehensive warranties often extend up to 25 years, ensuring sustained productivity. Choosing panels from a financially stable manufacturer ensures your investment is protected over time.

ZEN Energy's solar panels

We use LONGi panels, the global leader in solar efficiency, holding multiple world records and awarded PVEL Top Performer status for six consecutive years, showcasing industry-leading durability and reliability.

Solar Inverter Illustration

Solar Inverters

Converting light to electricity

Inverters are vital for converting the DC electricity from solar panels into AC for home use. High-quality inverters enhance system efficiency, reduce energy loss, and provide long-term reliability, contributing significantly to the ROI of your solar installation.

A solar inverter converts DC electricity generated by solar panels into AC electricity. This process involves electronic circuits that rapidly switch the DC input, creating AC output compatible with the electrical grid and household appliances.

The efficiency of a solar inverter reflects its ability to convert DC into AC with minimal energy loss. High-quality models boast efficiencies above 98%, ensuring that nearly all captured solar energy is usable.

The operational noise of an inverter is quantified in decibels (dB). Most residential units operate within the quiet 25-35 dB range, maintaining a peaceful home environment.

This measures the energy an inverter uses when it's on but not actively converting power. Superior inverters have low standby consumption, enhancing your system's energy efficiency and savings.

MPPT optimises the connection between the solar array and your home, ensuring maximum power extraction from your panels. Effective MPPT leads to increased electricity production, especially during peak sunlight hours.

A robust warranty reflects the reliability and longevity of a solar inverter. Choose inverters from financially stable manufacturers to ensure continuous, efficient power production and support over the inverter's life.

ZEN Energy's inverters

Our systems feature inverters from Redback, GoodWe, and TBB. GoodWe has won TÜV Rheinland’s "All Quality Matters" award five years running, while Redback and TBB are known for resilient, high-efficiency performance across varied conditions, with over 500,000 installations worldwide.

Solar Battery Illustration

Batteries

Storing solar energy

Solar batteries store surplus energy for later use, providing security during outages and offering flexibility. High-quality batteries deliver greater efficiency, durability, and cycle life, ensuring you get reliable, long-term energy storage.

Solar batteries store DC electricity produced by solar panels for later use. Inside a battery, chemical reactions occur between electrodes and electrolytes to store energy. This process is reversible, allowing the battery to release stored energy when needed.

DoD indicates how much of the battery's capacity can be used. A higher DoD means more accessible energy, enhancing your system’s overall efficiency.

Battery composition affects durability, maintenance, efficiency, and environmental impact. Popular options include lithium-ion (especially lithium iron phosphate) for high efficiency and low maintenance, and lead-acid or lead-carbon for affordability.

Cycle life represents the number of full charge and discharge cycles a battery can undergo before its capacity diminishes. Longer cycle life offers prolonged service and better system value over time.

Properly sizing your battery based on energy consumption is vital for uninterrupted power supply. Measured in kilowatt-hours (kWh), the right battery size ensures system efficiency and sufficiency.

Reliability and durability are key, reflecting consistent performance and resistance to degradation. Comprehensive warranties indicate manufacturer confidence and ensure investment security. Consider the financial stability of the manufacturer for honoring warranty commitments.

ZEN Energy's storage solutions

Our trusted storage partners—Pylontech, Redback, and TBB—offer award-winning, scalable solutions. Pylontech, the top-ranked residential storage brand globally, has surpassed 1 million installations, combining long-term durability with extensive warranties.

Solar Energy Monitoring Illustration

Energy Monitoring

Tracking and optimising energy use

Energy monitoring provides real-time insights into your system’s energy production and usage. With quality monitoring systems, you can understand your energy flow, optimise your usage, and get alerts for maintenance, safeguarding your investment.

Energy monitoring systems track the production and consumption of electricity in a solar energy setup. Sensors measure current and voltage generated by solar panels and consumed by the household, providing real-time insights on usage patterns, efficiency, and potential issues.

Real-time data access allows immediate visibility into system performance, helping quickly identify and rectify any issues or inefficiencies.

Look for systems offering in-depth analytics, including energy production, consumption patterns, and performance metrics over time. These analytics help understand energy habits and identify opportunities for further optimisation.

An easy-to-use interface, whether a web portal or mobile app, allows for simple navigation through data and analytics, making it easier to understand system performance.

ZEN Energy's monitoring systems

Gain comprehensive insights into your energy consumption with sophisticated energy monitoring systems from Redback, Goodwe, Entelar, TBB, and Selectronic, chosen by us. Maintain control over your solar energy usage effortlessly, with real-time data and analytics that are easy to understand and act upon.

Illustration of the energy grid

The Grid

Integrating solar with existing energy infrastructure

Grid integration allows for energy exchange between your solar system and the utility, with efficient interaction influencing returns on excess energy. Effective integration strategies can significantly affect your investment’s payoff and long-term savings.

The electrical grid is a network delivering electricity to homes and businesses. When your solar system generates surplus power, it can be sent back to the grid, earning credits on your electricity account. On days when the solar system underproduces, the home can draw needed electricity from the grid, ensuring a continuous power supply.

Solar electricity export policies allow customers to feed excess solar energy back into the grid and receive credits on their bills. Understanding these policies with your electricity retailer can significantly affect your solar investment's ROI.

Decide whether to be entirely independent (off-grid) or maintain a grid connection (grid-tied or hybrid). Grid-tied systems draw power when needed and provide stability, while off-grid systems require reliable storage. Hybrid systems offer battery independence while retaining grid connection.

The grid's reliability can influence the decision to invest in energy storage. In areas with frequent outages, having a battery backup ensures uninterrupted power supply.

Some utilities charge more during peak demand times. If your utility employs time-of-use charges, storing solar energy to use during peak periods can reduce costs.

Solar systems can offer services like peak shaving and load shifting, supporting the grid during high demand and potentially providing financial incentives for the system owner.

Solar Simplified
With
ZEN ENERGY

We’re committed to making solar simple. With clear, straightforward information, we’ll guide you every step of the way. Start your solar journey confidently with ZEN Energy.

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How solar energy systems work

SOLAR ENERGY MADE SIMPLE

Learn the basics of solar energy quickly with our 2-minute explainer video. Understand how the technology and the entire system work to effortlessly power your home with solar energy. Ready for a sun-powered future? Get a quote today.

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The ZEN solar difference

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Discover the advantages:
7 key reasons to choose ZEN Energy

Serving Kiwis for over a decade, we’re a proud New Zealand-owned business with local expertise you can count on.

With 1,000+ installations nationwide, we’ve delivered reliable solar solutions for homes, businesses, and large-scale projects alike.

Our team combines over 50 years of solar engineering and technical expertise, ensuring each system is designed to maximise performance.

We design every solar solution to align with your specific energy goals and property requirements, from off-grid homes to commercial projects.

Using world-class products like LONGi, GoodWe, and Pylontech, our systems are built for performance and durability, backed by global awards, accolades and financial stability.

Each installation undergoes a rigorous technical review, ensuring that every detail is optimised for maximum safety and efficiency.

Our support doesn’t end after installation. We’re here to help you maximise your system’s value and performance for years to come.

power your
future and
save with Zen

The future is looking bright.

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Start your switch to solar today. Get in touch and we can support your journey to energy savings, sustainability and self-sufficiency.

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