Micro-inverter
The Enphase Micro-inverter shifts DC to AC conversion from a large,
centralized inverter to a compact unit attached directly to each solar
module in the power system. Distributing the conversion process to each
module makes the entire solar power system more productive, reliable,
and smarter than traditional inverter systems.
Solar Power Challenges
Solar power production is affected by various factors such as module
mis-match, obstruction shading, inter-row shading, and obstacles such
as dust or debris. In addition, non-uniform changes in temperature,
irradiance, and shading create complex current-voltage curves, further
affecting energy harvest. This is due to the fact that in traditional
systems the performance of the entire system is dictated by the
performance of the weakest module.
The Enphase Solution
The Enphase Energy Micro-inverter System solves solar power
challenges by performing Maximum Power Point Tracking (MPPT) at each
solar module. MPPT is an algorithm used to calculate and respond to
temperate and light changes detected on a solar power system, and to
determine how much power to draw from the module. A centralized
inverter’s MPPT algorithm sees the entire solar power system as a
single module, and responds to the lowest production numbers it detects.
Increased Productivity
The Enphase MPPT algorithm works at each solar module in an
installation and achieves greater than 99.6% accuracy which enables it
to maximize energy harvest at all times, even during variable light
conditions. Tests show systems using Enphase Micro-inverters increase
energy harvest by as much as 25% over systems using traditional
inverters.
More Reliable
Traditional centralized inverters implementations create a single
point of failure for solar power systems. If the inverter fails, the
entire system is disabled. Enphase Micro-inverters convert power
independently at each solar module. If one micro-inverter fails, the
rest continue to operate as usual. Also, if a micro-inverter is damaged
or fails, it can be replaced during routine maintenance or when
convenient, further reducing maintenance costs.
Reduced Operational Costs
With the Enphase Micro-inverter System, installers are no longer
limited by string design, marginal designs, co-planarity, and matched
modules. The space, heat, and noise associated with a large inverter
are eliminated. Micro-inverter systems improve mechanical integration,
reduce wiring time, and remove the need for DC switching points.
Flexibility
Another benefit of the distributed Micro-inverter design is the
potential for installations to be expanded over time. An initial set of
solar modules can be installed and additional modules added as needs
and budgets grow without requiring the replacement of a large
centralized inverter.
Compliance and Reliability
The Enphase Micro-inverter is CSA Listed per UL1741 and can
withstand surges of up to 6kV. Enphase Micro-inverter systems undergo
rigorous testing including HALT and HASS, ensuring reliability.
Independent testing by Relex – a leading third party reliability expert
– has shown an estimated Mean Time Between Failure (MTBF) of 119 years
for Enphase Micro-inverters.
Works wiht 150 to 210 watt Solar Modules
Enphase
M190 Microinverter (Currently In Stock But Selling Fast)
The
M190 microinverter is compatible with a wide range of 60 and 72 cell
modules up to 235 watts STC, including SOLON, Sharp and SunWize.
- 208 VAC model allows 21 microinverters to be wired in a
circuit
- 240 VAC model allows 15 microinverters to be wired in a
circuit
- MC3, MC4, Tyco connectors
- 15 year warranty, mean time between failures of 331 years
- 95.5% CEC rating
- Enlighten module-level, web-based monitoring
Enphase
M210 Microinverter
The
M210 microinverter is designed to be compatible with the 72 cell SANYO
N-Series high efficiency module (HIP-200NKHA5, HIP-205NKHA5,
HIP-210NKHA5, HIP-215NKHA5). The M210 in combination with a SANYO
N-Series module constitutes the current state-of-the-art in energy
production. The Enphase Energy Microinverter System not only improves
energy harvest, but also increases system reliability and simplifies
design, installation and management of PV systems.
- 208 VAC model allows 18 microinverters to be wired in a
circuit
- 240 VAC model allows 13 microinverters to be wired in a
circuit
- MC4 locking connectors
- 15 year warranty, mean time between failures of 331 years
- 95.5% CEC rating
- Enlighten module-level, web-based monitoring
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