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Tenders

Solar energy storage devices with a capacity of 1000 kWh

Open
Deadline
6 days left
April 10, 2026
Contract Details
Category
Supplies
Reference
308089
Value
€100,000
Location
Estonia
Published
March 25, 2026
CPV Code
Evaluation Criteria
Quality vs. Price100%
Project Timeline

Tender Published

March 25, 2026

Deadline for Questions

April 03, 2026

Submission Deadline

April 10, 2026

Tender Opening

April 10, 2026

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Budget
€100,000
Duration
6 months
Location
Estonia
Type
Supplies
75
Quality Score/100
Good
Market Benchmark
Avg. Winning Price
€953,045
Avg. Bids
2.6
Competition
Low
SME Winners
39%
318 tenders analyzed

Original Tender Description

Purchase of storage equipment for two existing solar parks, including installation, setup, and integration into existing solar parks according to the procurer's wishes. Desired storage capacity 4 x 250 kWh. The equipment must be suitable for outdoor conditions and be liquid-cooled. Inverter 100-125 kW. Object location: Mõisaküla town, Mulgi municipality, Viljandi county.
EU FundedElectronic Submission

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65%
Estimated Win ProbabilityModerate Fit

This tender prioritizes quality and technical expertise due to the 100% quality weighting. Bidders must demonstrate a strong track record in similar solar energy storage projects and offer superior equipment and after-sales service to secure this contract.

Key Winning Messages

Uncompromising Quality and Proven Performance: Delivering reliable, high-performance liquid-cooled solar storage solutions backed by extensive project experience and exceptional after-sales support.

Seamless Integration and Technical Excellence: Ensuring flawless integration with existing solar parks, leveraging deep technical expertise for optimal system performance and longevity.

Key Opportunities
The 100% quality weighting allows for significant differentiation beyond price.
The specific technical requirements (liquid-cooled, outdoor-rated, inverter range) create an opportunity for specialized providers.
The location in Mõisaküla, Viljandimaa, may favor bidders with local or regional presence for installation and support.
Key Challenges
The absence of specified technical capability and financial requirements could lead to a wide range of bidder quality.

Thoroughly vet all submitted technical specifications and financial stability information to ensure compliance and capability, even if not explicitly mandated.

Potential for aggressive pricing from less quality-focused competitors, despite the weighting.

Clearly articulate the long-term value and total cost of ownership benefits of a higher-quality solution, emphasizing reliability and reduced maintenance.

Ideal Bidder Profile
A technically proficient company with proven experience in designing, installing, and integrating liquid-cooled, outdoor-rated solar energy storage systems. The ideal bidder will have a strong portfolio of at least three similar or larger projects and a robust after-sales support network.
Key Requirements
Experience in implementing at least 3 similar or larger solar energy storage projects.
Confirmation of no subcontractors or suppliers associated with the Russian Federation or subject to sanctions.
Meeting all contract conditions.
Offering liquid-cooled, outdoor-rated equipment suitable for the specified inverter range (100-125 kW).
Demonstrating superior quality of offered equipment and services (including after-sales services).
Key Discriminators
Demonstrated long-term warranty and comprehensive after-sales service plan that exceeds standard offerings.
Detailed technical proposal showcasing innovative integration strategies and advanced system monitoring capabilities.
Case studies and testimonials specifically highlighting successful integration of similar liquid-cooled storage systems into existing solar infrastructure.
Social Value Opportunities
While not a mandatory requirement, consider proposing a local employment initiative for installation and maintenance roles, or a knowledge-sharing workshop for the contracting authority's staff on battery storage best practices.
Bid Focus Areas
Quality of offered equipment and services (including after-sales services)100.0%

Detail the superior technical specifications of the proposed storage units, emphasizing efficiency, longevity, and safety features. Provide a comprehensive after-sales service plan including proactive maintenance, rapid response times, and expert technical support. Showcase manufacturer certifications and quality assurance processes.

PriceN/A (as part of overall quality assessment)

While quality is paramount, ensure the price is competitive and justifiable. Clearly outline the total cost of ownership, highlighting how the superior quality translates to lower operational costs and higher long-term value, thus indirectly influencing the price perception within the quality assessment.

Recommendations6
Prove Extensive Project Experience
CriticalHigh effort

Compile detailed documentation for at least three similar or larger solar energy storage projects, clearly outlining scope, scale, technical challenges overcome, and successful outcomes. Emphasize experience with outdoor, liquid-cooled systems.

Directly meets a mandatory eligibility criterion, demonstrating capability.
Maximize Quality Score
CriticalHigh effort

Develop a technically superior proposal that goes beyond minimum requirements. Detail the advantages of the proposed liquid-cooled technology, its suitability for outdoor use, and the specific benefits of the chosen inverter. Offer an exceptional after-sales service package, including extended warranties, proactive monitoring, and rapid on-site support.

Crucial for winning due to 100% quality weighting.
Highlight Integration Expertise
HighMed effort

Provide a detailed plan for seamless integration with the existing solar parks. Showcase experience with similar integration challenges and outline the methodology to minimize disruption and optimize performance.

Addresses a core aspect of the project description and demonstrates technical prowess.
Ensure Sanctions Compliance
CriticalMed effort

Conduct thorough due diligence on all proposed subcontractors and suppliers to unequivocally confirm no association with the Russian Federation or entities subject to sanctions. Include a clear statement of compliance in the bid.

Avoids mandatory exclusion.
Quantify Long-Term Value
MediumMed effort

While price is not the primary driver, present a clear value proposition that links the higher quality equipment and services to lower total cost of ownership (TCO) through reduced downtime, extended lifespan, and lower maintenance costs.

Strengthens the quality argument by demonstrating economic benefits.
Propose Local Engagement
LowLow effort

If feasible, suggest a commitment to utilizing local labor for installation or maintenance, or offering training to the client's personnel on the new system. This can add value without significant cost.

Enhances bid appeal and corporate social responsibility perception.
Competitive Positioning
Position the bid as the premium, technically superior solution that guarantees long-term reliability and performance, leveraging extensive experience in complex solar storage integrations. Emphasize the 'set it and forget it' aspect of a high-quality, well-supported system.

Competitors

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Requirements & Qualifications

7 requirements across 5 categories

Submission (3)
Mandatory (1)
Compliance (1)
Technical (1)
Financial (1)
SUBMISSION REQUIREMENTS3
--Bidders must confirm that they will not engage subcontractors or suppliers associated with the Russian Federation or subject to sanctions.
--All contract conditions must be met.
--Bids will be evaluated based on price and the quality of offered equipment and services, with quality having a 100% weighting.
MANDATORY EXCLUSION GROUNDS1
--Bidders must not be in violation of national legislation.
ELIGIBILITY REQUIREMENTS1
--Bidders must have experience in implementing at least 3 similar or larger solar energy storage projects.
TECHNICAL CAPABILITY REQUIREMENTS1
--Not specified in the provided text.
FINANCIAL REQUIREMENTS1
--Not specified in the provided text.

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Documents

3 documents available with AI summaries

VastavustingimusedPDF
308089_vastavustingimused.pdf -- 6.6 KB

The bidder must confirm that no subcontractors or suppliers linked to the Russian Federation or subject to sanctions will be involved, and that all tender conditions are met.

Hindamiskriteeriumid ja hinnatavad näitajadPDF
308089_hindamiskriteeriumid.pdf -- 2.8 KB

The contracting authority will evaluate bids based on both price and the quality of the offered equipment and services, with quality carrying a 100% weight.

Kõrvaldamise alused ja kvalifitseerimistingimusedPDF
308089_korvaldamise_alused_ja_kvalifitseerimi... -- 5.7 KB

Bidders must demonstrate compliance with national exclusion grounds and have experience implementing at least 3 similar or larger solar energy storage projects.

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75
Good

Tender Quality Score

This tender for solar energy storage equipment is generally well-structured, with clear requirements and a reasonable process. However, it lacks specific details on technical capabilities and financial requirements, and has limited sustainability considerations.

Score Breakdown

Legal Compliance75/100

The tender appears to comply with general legal requirements, including the use of CPV codes and a clear procedure. Deadlines are reasonable, and no disputes are noted. The mention of mandatory exclusion grounds and compliance with national legislation indicates a focus on regulatory adherence.

Clarity80/100

The description of the required equipment and services is clear, outlining the need for storage devices, installation, configuration, and integration. Key criteria for evaluation are mentioned, although the weighting of price versus quality needs further clarification. Conditions for subcontractors are also specified.

Completeness70/100

Most basic information is present, including the title, reference, organization, estimated value, and duration. However, specific technical capability requirements and detailed financial requirements are not explicitly stated in the provided text, which impacts completeness.

Technical capability requirements not specified
Financial requirements not specified
Fairness85/100

The tender promotes fairness through e-submission and e-procurement. The value is disclosed, and criteria are objective, although the 100% weighting on quality over price is unusual and could be perceived as less balanced. The exclusion of subcontractors linked to sanctioned entities is a standard fairness measure.

Evaluation criteria heavily weighted towards quality (100%) over price, which might limit competitive pricing.
Practicality65/100

The tender specifies e-submission and e-procurement, which are practical. The contract duration is stated. However, information regarding the contract start date and specific financing details beyond the estimated value is not provided, reducing overall practicality.

Contract start date not specified
Detailed financing information beyond estimated value not provided
Data Consistency90/100

Key fields such as title, reference, organization, and dates are populated logically. The status is clear, and there are no reported suspensions or disputes, indicating good data consistency.

Sustainability50/100

The tender is EU funded, which implies adherence to certain EU standards. However, there are no explicit mentions of green procurement criteria, social aspects, or innovation focus beyond the core requirement of solar energy equipment.

No explicit green procurement criteria
No explicit social criteria

Strengths

Clear title, reference, and organization details
Well-defined CPV code and location
E-submission and e-procurement enabled
Reasonable deadlines and disclosed value

Concerns

Missing specific technical capability requirements
Missing detailed financial requirements
Limited sustainability considerations beyond EU funding

Recommendations

1. Specify detailed technical capability requirements for bidders.
2. Provide more granular financial requirements or expectations.
3. Incorporate explicit sustainability criteria (e.g., energy efficiency of storage, recyclability of components).

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