Tesla Powerwall : Review

Powerwall is a compact li-ion accumulator for domestic use, presented by Tesla Motors. In association with solar panels, it is used either as the major power source or in the additional, backup mode. Supplying the house with electricity in such a way decreases the bills up to 90%.


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General information

The Powerwall is a small, light, maintenance-free accumulator with an assurance for whole 10 years. The device is universal: it is optimized for voltage drops or for power support when applying at home; whereas, for business, the company suggests models redistribute the electricity demand for a short-term uninterrupted power supply.

• Compact parameters and stylish design.
• 10 years warranty.
• Maintenance-free.
• Efficient solar power intake.
• Significant reduction of accounts.
• Load redistribution – accumulate within the day, use at night.
• Reserved power – switching off and interruptions from now on are in the past.
• Perfect device for applying in off-grid solutions.

The parameters of the Powerwall are just 51.2×33.9×7.1 inches and weights 220 pounds. The optimum operating temperature range is -20…+43℃ that make possible to apply the device even outside. The device can be fastened in 2 ways: on the floor and on the wall. It is controlled just with a touch of a finger, demands no wires and holes, has a simple and functional design. It is possible to manage the system remotely via an application.

Introduction to circuits

The accumulator is created on the basis of standard li-ion technology, with a typical power density indicator. No doubt, the battery is really handy with its design and installed software. The Powerwall is delivered in two variants: the electrical transformer comes with an AC-coupled sample and one DC-coupled. Tesla gives installers the opportunity to customize the product for homeowners.

During AC-DC conversions the transformer efficiency draws up to 13% and converts to heat. However, a liquid thermic monitoring grants long life, exceptional performance and regulates the inner temperature of the battery. More data can found on the web.

Tesla designed the device for cyclic procedures, which include loading and reloading. The output of the 14 kW corresponds to the day-to-day economic needs of the ordinary family. It would be a good idea to set a supplementary expense converter for voltage control. A solar panel, a wind generator or a stationary electricity station can load the batteries.


The Powerwall can be used as the primary power source or the secondary one. According to the settings, the device changes modes automatically. This technology is adapted for regions with unstable power supplies or for distant locations on the Earth, where there aren’t stationary power grids, and in large cities, it helps to optimize expenses.

Tesla suggests the solution to the urgent problem of produced energy storage. The solar energy should be applied at the fullest: in the afternoon the accumulator is charged, at night it is used. To sum up, the primary purposes are the ability to use solar energy in the absence of the sun, a steady shift in the expenditure load, an alternative way of power transporting.

In the nearest future, the command of PapersOwl hope, those Tesla batteries will supply the entire planet with free and environmentally friendly power. The Earth will only win because every such accumulator will make the world safer and cleaner.

Tesla Powerwall : Review
4.33 (86.67%) 3 votes

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