What we do
Two roles, never both on one project
Independent advice from the first load profile to acceptance, or turnkey delivery through partners. We state our role up front.
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
Most buyers need an engineer on their side before they need a battery.
We start as an independent advisor for load-profile analysis, feasibility study, specification, tendering, owner's engineering (an engineer who represents you, the owner, on the project) and acceptance. You pay a fee for this, never a share of what gets installed. We deliver turnkey, under one contract and through vetted installation partners under our supervision, only on projects where we did not write the tender or evaluate the bids. In either role the systems range from 50 kWh to the low megawatt-hour range, and we stay manufacturer-independent.
Advisory
Load profile to acceptance, paid by fee
Turnkey
One contract, vetted installation partners
50 kWh to low MWh
Typical system range
From the first data to a working system
Analysis and Decision
We find out where your peak comes from and whether storage is worth it.
A load-profile analysis reads your metered quarter-hour data to find the peak and a first sizing band. A feasibility study then turns that result into a technical and economic assessment written to the energy-audit standard.
- Load-profile analysis: peak, drivers and a first sizing band
- Feasibility study: sizing variants, grid assessment and an economic case
- Energy audit (EDL-G, EnEfG), with storage and PV potential assessed inside it
35,040
Quarter-hour values analysed per year
DIN EN 16247-1
Standard the feasibility study is written to
Specification and Tendering
Every bidder answers the same manufacturer-neutral specification.
We write the specification, run the tender and put every bid into one comparison on the same basis. If you already hold quotes without a specification behind them, we can review those on their own.
- Specification (Lastenheft) and bidder shortlist
- Tender management and normalised bid comparison
- Quote review for quotes you already hold
0
Bids from ZNX in a tender we wrote
Fixed price
Quote review, agreed before it starts
Owner's Engineering and Acceptance
An engineer represents you from the contract to the final sign-off.
Owner's engineering covers design review, site supervision and witnessing the commissioning on your behalf. Acceptance testing is the independent check of the installed system before the final invoice is paid.
- Design review, site supervision and commissioning witness
- Acceptance testing against contract and standard before final payment
- Billed by day rate or fixed fee, agreed up front
Day rate / fixed fee
Billing basis for owner's engineering
DIN EN IEC 62933
Standard the acceptance test is run against
Engineering, manufacturer-neutral procurement and installation by vetted partners under our supervision all come under one fixed-price contract. We only offer this where we did not write the tender or evaluate the bids.
- Detailed engineering and manufacturer-neutral procurement
- Installation by vetted partners under our supervision
- Grid connection, commissioning and documentation
50 kWh to low MWh
Typical system size delivered turnkey
1
Contract covering the complete delivery
What storage does on your site
Each use case has its own page with how it works, how it is sized and where to start.
Peak shaving →
A battery sized to your load profile keeps down the highest quarter hour of the year, which sets the capacity charge.
Self-consumption →
Storage moves PV surplus into the hours you consume, when the load profile and the generation curve fit together.
Backup power →
A storage system can keep critical circuits running through a grid outage, if it is specified for it from the start.
Charging buffer →
When fleet charging hits the grid connection limit, a buffer battery can be faster than a grid upgrade.
Seven steps, each one optional
You can start at any step. Most clients start with their load profile and stop once their question is answered.
Load-profile analysis
We find the peak in your metered data and a first sizing band.
Feasibility study
We turn the sizing into a technical and economic assessment written to standard.
Specification and tendering
We fix what you buy before any bidder prices it, run the tender and put every bid onto one comparison.
Quote review
We review quotes you already hold, even when no specification stands behind them.
Owner's engineering
We review the design and supervise the site on your behalf.
Acceptance testing
We check the installed system before the final invoice is paid.
Energy audit
We carry out the energy audit (EDL-G, EnEfG) and assess storage and PV potential inside it.
Three rules keep us independent
These rules apply to every project, whether we advise or deliver turnkey.
One role per project
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. As turnkey partner we deliver the system through vetted installation partners under one contract. If we wrote the specification or evaluate the bids, we do not bid.
No hardware, no software, no assets
ZNX sells no own hardware brand, develops no own control software and owns no energy assets.
Fee stated up front
Load-profile analysis, feasibility studies, quote reviews and acceptance tests are offered at a fixed price agreed on the scope. Owner's engineering is billed by day rate or as a fixed fee. Turnkey delivery is a fixed-price contract.
The figures and references on this site are projects of Equator Solar Systems Ltd in East Africa. The contracting party for ZNX services is ZNX Energy GmbH.
