Solar electric systems provide power during daylight hours or when the sun is shining, but what about providing energy when there is no sunlight? At Pacific Islands Construction, we work tirelessly to bring you products and services at the cutting edge of energy efficiency and sustainability. In that pursuit, we are proud to present the Zefr, a small wind turbine that operates as part of the modular and scalable Wind Array Turbine System (WATS) developed by JLM Energy Inc. of Rocklin, California. Zefr turbines make up WATS to collectively harness the power of the wind, routing the power of 20 turbines into a single smart inverter to reduce your carbon footprint and lower your energy costs.

Small wind turbine array challenges

Because of the variability in wind gusts, it has been very difficult to harness energy from multiple interconnected wind turbines. Turbines that would be spinning faster than others would send power down the line of their adjacent counterparts and further slow, or completely disrupt, those generators. This posed a challenge in the scalability and distribution of small wind turbine systems — until now.

Don’t let its small size fool you


Coming in with a 36-inch rotor diameter, the Zefr packs an arsenal of cutting-edge technology. JLM Energy’s Zefr turbine overcame the technological obstacles by developing a new wind turbine that houses revolutionary power electronics. The power created from every Zefr turbine in the Wind Array Turbine System flows through the same tethered cable harness without disrupting the power generation of neighboring turbines. A 3.6kW smart inverter, which seamlessly and optimally generates the maximum amount of power, converts the power from 20 Zefr turbines into common AC electricity. Additionally, JLM engineers keep a close eye on the quality of their products by keeping manufacturing in the U.S.

Bringing you efficiency and flexibility

Traditionally, a single turbine was a big investment with no opportunity for scalability. The inherent small size of the Zefr and easy-mounting features make it flexible to put multiple units on a roof line, parapet or other structural surfaces that enable a seamless blend into the architectural landscape of your building. It also is easy to scale up your energy production at any point down the road simply by adding more turbines.

Whether you’re a small or large business, owner of a residential complex or simply a homeowner interested in lowering your carbon footprint and monthly utility bill, the Wind Array Turbine System offers the modularity to easily customize the installation.


The Wind Array Turbine System also comes with JLM’s energy monitoring software so that you can track each Zefr’s energy production in real time. That way, you can see your investment saving you money and also determine whether your system is running optimally or not.

Finding out more

Visit booths 234 and 235 at the Summer New Product Show today, June 10 at the Blaisdell, or call us at 841-7756. You also can visit us online at to learn more about Zefr and what it can offer you. We install solar electric, solar thermal and now wind power systems. Our goal is to provide complete satisfaction now and into the future by providing our customers with the best-constructed solar and wind energy systems. Find out more about what we feel are the finest-made systems that will last and produce for a lifetime.

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