
Independent engineeringfor battery storage
For German industry we analyse load profiles, write specifications, run tenders and act as owner's engineer, or deliver turnkey with vetted partners.
4,074 kWp
PV by Equator Solar
3,923 kWh
Storage by Equator Solar
34
Storage projects by Equator Solar
15
Years of Equator Solar
We take one role per project, never both
As independent advisor we are paid a fee and earn nothing on hardware. As turnkey partner we deliver the system through vetted installation partners under one contract.
Advisory
We support you from the load profile to the acceptance test, paid by fee.
Quote review
We make the quotes you already hold comparable.
Energy audit
We handle your duties under the German energy audit and efficiency laws (EDL-G, EnEfG), with no product to sell.
Turnkey delivery
You sign one contract, and vetted partners do the installation.
Independent advisory
On every project we take one of two roles, never both. As independent advisor we are paid a fee, earn nothing on hardware and take no commission from manufacturers or installers.

We are paid by fee, with no margin on hardware.
Advisory work runs in seven steps, from the first look at your load profile, the record of your site’s power demand over the year, to the acceptance test of the finished system. Each step is priced on its own scope, so you can stop after any of them.
Fee only
No margin on hardware, no commissions
7 steps
From load profile to acceptance test
Specification and tendering
We write the specification before any installer sees the project, so every bid you receive answers the same document and prices the same scope.

One specification makes the bids comparable.
Bids only become comparable when a specification written to standard exists before anyone prices the work. If we wrote the tender, we do not bid on it ourselves.
Neutral
Manufacturer-neutral specification, written before anyone prices it
0 bids
From ZNX in a tender we wrote
Owner's engineering and acceptance
We review the contractor’s design before you sign it and run the acceptance test before you pay, so the risk sits with the party who can actually judge it.

We work as your engineer on the project, never for the installer.
A design review before you sign catches problems while they are still cheap to fix. An acceptance test before you pay confirms that what was promised was actually built.
Review
Design review before you sign
Test
Acceptance test before you pay
Turnkey delivery
If you want one contract instead of coordinating your own contractors, we deliver the system through vetted installation partners under our supervision.

50 kWh to low MWh
Typical system size
One contract covers the whole system.
Engineering, procurement and installation sit under one contract, delivered through vetted installation partners. We have no own installation team. We take the turnkey role only where we did not write the specification or evaluate the bids.
One contract
Engineering, procurement, installation by partners
One role
Never where we wrote the spec or evaluated bids
Projects built by Equator Solar Systems in East Africa →
Equator Solar Systems Ltd, the East African company ZNX Energy works with, built these projects. There is no completed German reference yet.
Shareholders and partners



