Inverter / Hybrid Charger Studer next3 sti

Inverter / Hybrid Charger Studer next3 sti


Inverter / Hybrid Charger Studer next3 sti

15000 W, 48 VDC, 3 PH 380 VAC / 50/60 Hz, charge current 250A PV / 250A AC / 3x 80A, 900 Voc, sinewave, electronic protection, air cooling, LCD, programmable, CAN, option (Datalogger, Ethernet), IP30

Article No 321957
Manufacturer Studer
Product Weight 58.00 kg
Packed Weight 58.00 kg
Dimensions 320 x 450 x 760 mm (LxWxH)
Shipping Road Cargo
Regular Price €28,017.13 Special Price €25,215.41 €20,335.01

Studer's next3 is the new versatile 3-phase smart inverter charger with built-in solar MPPT inputs and a wide range of extraordinary features. Ensuring the Swiss quality to have outstanding performances for both off grid and on-grid applications, the next generation brings the battery-based systems to the next level.  

An all-rounder matching any project requirement 

  • All-in-one compact and versatile solution customized according to project needs 
  • Outstanding performance and integration of every energy source: solar, grid, generator 
  • 3-phase input (AC source), 3-phase output (AC loads) and 3-phase AC flex, configurable as a second input or second controlled output 
  • Smart energy management with AI models
  • Smooth operation with all battery technologies. Lithium-ready, integrated CAN communication with lithium batteries BMS 
  • Unique modular hardware combination with optional solar and transfer modules 
  • Multiple combination possibilities: parallel operation with one internal transfer, multiunit and multi-battery system
  • Remote monitoring and control with studer professional portal  
  • 12-year warranty (6+6)  


Article No 321957

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Our catalog contains only high quality and reliable products from the best manufacturers with long warranty periods proven in the field and always the latest versions of the products. We are distributors of leader companies in off-grid solar with more than 20 years of experience that will be there to honor the warranties they offer. You may read more about us and our business partners here >>


All products are shipped from Germany with FedEx UPS or GLS (Parcel Post) and when in stock, they are delivered in most European destinations around 3-5 business days after ordering. If a product is not in stock an extra week may be needed for delivery and we'll inform you about the exact shipping date of your item(s) immediately. Larger items and batteries can only be shipped with road transport (Road Cargo), additional charges may be applied. Please note that certain batteries, and especially the Sonnenschein batteries, have long lead times. The SOLARA and DCsolar products are currently shipped only within the EU and certain non European countries. You may see the shipping and VAT rates after adding an item to the cart and choose the country of delivery, please read more in our shipping section here >>  


​​​​​100% secure payment with all major credit cards via PayPal. You don't need to register for a PayPal account if you don't have one. Please click in any of the credit card icons so you can proceed with credit card payment in your language without creating a PayPal account. We also accept bank / wire transfers, please contact us for our bank account details or if you want us to send you a link so you can use your credit or debit card. 

Prices, invoices and VAT

Prices are shown with 24% VAT but we will charge you the VAT rate of the country of delivery. We are registered in EU's One Stop Shop (OSS) and we must issue invoices with the VAT rate of the country of delivery; you may see the price with VAT rate of the country of delivery after adding an item to the cart. EU VAT registered businesses qualify for a VAT-free (exempt) invoice, you may check if your EU business VAT number is eligible on the site of VIES. Please contact us or enter your VAT number if you are a business customer so we'll provide you with an intracommunity EU invoice and refund you the VAT. There will be no VAT applied automatically during checkout for customers in Norway and Switzerland and the UK. There are no customs duties for most UK deliveries, the courier will ask for 20% UK VAT and a customs clearance fee before the delivery; FedEx currently charges a fee of around £12.75. Please contact us or click here for more information. 


If you change your mind about your purchase you can return us the product to the warehouse in Germany and get a refund or exchange it for up to 14 or 30 days from the day you received it, provided that it is still in its new, unopened and unused conditon and with its original packing. Buyers pay for the return shipping costs. Please contact us before so we can give an RMA number and the return address. We have a really very low, approching zero rate of returns, result of the high quality of the products we offer.

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We have sold more than 1400 items only via eBay and we have gained positive feedback from hundreds of customers around the world that appreciate the high standards of our products and services.

Other questions?

Please don't hesitate to contact us for technical, availability or other questions or if you can't find what you're looking for. We have more products available than what is listed in the website. The best way to contact us is via email or chat, we respond to most requests in less than 24 hours. We can help you find the right product or propose you a customized solution, you may consult our off-grid systems overview here >>

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Special prices for businesses and larger quantities, please ask us for a quote.