50 kW / 110 kWh Solar Storage with a 17 kW Export Limit in Police, Poland

YOTAI PARTNER REFERENCE · YINTU ENERGY SOLUTIONS

YOTAI's Prox-Bud project in Police, Poland, describes a 50 kW / 110 kWh PV-storage installation with a specified 17 kW export limit. The slide identifies the application as a farm and places load-distribution changes and better use of solar energy at the centre of the project.

Project at a Glance

Customer Situation and Energy Requirements

The project needed to supply local loads from PV and retain suitable surplus energy in storage, with export permitted only within a stated cap. A distribution-circuit modification was also part of the background, making the connection of local and grid-side loads relevant to the control design.

The source lists reduced grid purchases and deferral of transformer or cable investment as customer objectives. These are planning goals. They require a site assessment and should not be presented as verified infrastructure savings or a substitute for checking equipment ratings.

Storage Integration and Control Strategy

The reference combines PV, battery storage, the utility and both local and grid-side loads. It describes self-consumption as the operating foundation and limits export to 17 kW. When PV and available battery discharge can supply demand, the desired operating state avoids further grid import.

Metering at the agreed site boundary must capture the relevant sources and loads. The battery controller then needs to coordinate charging, discharging and any supported PV output adjustment within the equipment and connection limits. Circuit changes should remain consistent with the approved single-line diagram.

Battery energy can move generation between periods, while converter power can support a defined demand peak. Whether this helps defer a connection upgrade depends on peak duration, reserve availability and the required reliability. It does not increase the physical continuous rating of the existing transformer or cables.

Intended Operational Value

This reference is useful for agricultural sites where an export allowance and a changing load layout need to be considered together. The intended operating value is better use of local solar and controlled exchange with the utility.

The source does not state PV capacity, an annual energy balance or a measured cost reduction. A comparable proposal needs those inputs before estimating energy savings, selecting additional battery capacity or making an infrastructure-deferral claim.

Planning a Comparable Installation

• Confirm which circuits sit inside the import/export measurement boundary.
• Document the permitted 17 kW setting and the conditions attached to it.
• Assess the daily energy balance and the duration of demand peaks.
• Review protection, cabling and the response to a full or unavailable battery.

Related YINTU Storage Options

The 50 kW / 115.2 kWh commercial storage cabinet is one current YINTU catalogue option for an AC-coupled design with a compatible external PV inverter. It differs from the source's 110 kWh equipment family. Use our storage sizing guide to prepare power and energy requirements before comparing configurations.

How YINTU Supports a Comparable Project

YINTU is an energy storage solution provider working with manufacturing partners, including YOTAI. We support application assessment, equipment selection and technical coordination for customer-specific projects. This article presents a supplier reference. YINTU does not claim to have designed or installed the featured site.

For a new proposal, share the revised electrical layout, load and PV records, the export agreement and any proposed connection-upgrade plan. The agreed technical scope defines equipment, interfaces and service responsibilities. The source's 110 kWh equipment family should not be treated as identical to a current catalogue product with a different rating.

Project Questions

Why is the site described as agricultural?

The supplied slide labels the application as a farm. It provides no further operating description, so additional agricultural activities are not assumed.

Can a battery permanently replace a transformer upgrade?

Only a site study can establish whether an upgrade can be deferred for the intended duty. Network and protection ratings remain applicable, and storage availability must be included.

Project facts and photograph: YOTAI overseas C&I case collection, September 2026, slide 6. The source describes the configuration, requirements and technical challenges. Application analysis is provided by YINTU. The collection does not supply metered performance results for this project.