Unfortunately not. Storage, inverters and wallboxes are part of your energy installation — and belong in the hands of an electrical contractor who handles wiring, system integration and grid registration. Too much can go wrong if it's not done by someone who does this every day. What we're happy to do: send us your address via the contact form, and we'll connect you with a Sunlumo partner near you who can give you a fair quote.

Just contact us via the form, tell us where you live, and we'll connect you with an electrical contractor in your region who is familiar with our Sigenergy products. Your address is used only for this referral and shared with no one else.

Yes. Our Sigenergy inverters are listed in the official certification registers of the respective sales countries. The exact status per model and country is shown on each product page with a direct link to the official database. Your Sunlumo partner handles the grid registration during commissioning.

Sunlumo only carries brands we trust — and every product comes with its manufacturer warranty. The exact period is shown on each product page. For some products — Sigenergy is one example — the standard warranty can be extended. Just ask your Sunlumo partner.

Your first contact is always your Sunlumo partner — he knows your installation best. For system-level issues he can't solve on his own, we're directly there for him: German-speaking service team and a direct line to the manufacturer. As an end customer, you never have to deal with an anonymous manufacturer hotline — the same applies in case of warranty.

Exciting topic that will become big in the coming years. Sigen hardware (storage and DC charger) is already built for bidirectional charging today — from 2027 it becomes mandatory in the EU for new charging stations. For your car to actually feed power back to your house, the car itself must support this. Best to ask the car manufacturer directly whether and how your model supports bidirectional charging — their statement is binding here, not ours.

Because Sigenergy offers everything from a single source — inverter, storage, backup power and wallbox work as one system and are operated via a single app. That makes life much easier for our installers and for you as the end customer than three different brands that somehow have to work together. The hardware is also already prepared for the upcoming EU standard for bidirectional charging that becomes mandatory in 2027. Those who install today have a platform that stays current for years to come.

Are you an electrical contractor and want to sell and install our Sigenergy products? Great — register via our partner form with your standard company details, and we'll get back to you for an introductory call. After activation you'll see all prices and datasheets in our B2B shop and can place orders directly. You'll also appear on our partner map for end customers in your region.

You get more from us than just hardware: pre-sales consulting, support during commissioning, product training, and a German-speaking service team with a direct line to Sigenergy. In case of warranty claims, we accompany you through the manufacturer process. You're never alone with your project.

Standard items are in stock and ship promptly. Live availability for each product is shown directly in our B2B shop — as a Sunlumo partner you see this with one click after login. For larger projects and special configurations, contact us directly — we'll provide a binding delivery date.