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Solar4U Energy Systems and Services

All photos actual Solar4U installations.

This is how it works
1) Solar Electric or PV modules convert sunlight to electricity.
The PV modules generate DC electricity - or direct current -
sending it to the inverter.

(2) The inverter transforms the DC power into AC electricity
for ordinary household needs.

(3) Existing electrical panel distributes solar electricity and
utility power to

(4) loads (appliances). For systems with a battery backup
(optional), the inverter also regulates the charge of batteries.
The electricity stored in the batteries can be used at night or
during blackouts. A valuable feature of photovoltaic systems
is the ability to connect with the existing power grid which
allows owners to sell excessive electricity back to the utility
with a plan known as net metering.

(5) At times when you are not using all of the electricity
produced by your system, your meter will spin backwards
selling the electricity

(6) back to the utility power grid at retail rate.

Stand-alone PV systems are designed to operate independent
of the electric utility grid, and are generally designed and sized
to supply certain DC and/or AC electrical loads. Stand-alone
systems may be powered by a PV array only or may use utility
power as a backup power source.

Stand-Alone System - Since there is no battery to store
electrical energy, energy is used immediately. Common
applications are direct power to DC loads, water pumping and
telecommunications. With an inverter it can also power AC
loads. This system only works when it's sunny.
Stand-Alone System with Battery Backup -Can supply power
100% of the time: At night, on cloudy days and when the utility
power is down. Excellent for remote applications where utility
grid is inaccessible; cabins, boats, RVs and for emergency
backup systems.

Sunny Boy Inverters
SMA inverters hold 50% of the world inverter market
share due to their rugged German electronic design
and waterproof housings. They provide the most
reliable and most efficient inverter technology
available. The compact design makes them ideal for
residential and light commercial use and the
integrated AC/DC disconnects makes installation
more cost-effective. They also allow for a variety of
monitoring methods that will provide detailed
information on the performance of your system.