Power Systems • Software • Data

Project Experience

Proof of experience, delivered with clarity.

RenSolv brings together extensive project experience from across the renewables and power systems sector.

Examples represent recent projects and those reflecting broader experience of our team. Due to NDAs, we keep project names confidential and show the capacity (MW), voltage (kV) and what we did.

🟩 Recent Projects

Curtailment Assessment (ANM & LMS)

Solar Farm – 15 MW @ 33 kV (UKPN, UK)

Independent ANM curtailment analysis using time-series back-cast and queue attrition.

Solar Farm – 20 MW @ 33 kV (UKPN, UK)

Network rebuild and historical trace assessment to establish bankable curtailment outlook.

BESS – 49.9 MW @ 132 kV (NGED, UK)

ANM curtailment modelling incorporating storage dispatch behaviour.

Offshore Wind Farm + BESS – 100 MW ± 100 MW @ 132 kV (NE Scotland, UK)

LMS curtailment study assessing constraint patterns with and without storage.

Solar and BESS Compliance Assessment (Europe)

98.6 MW BESS @ 110 kV (Europe)

Full gridcode compliance: load flow, reactive capability, shortcircuit, antiislanding, FRT, model build/validation. Accepted by DSO/TSO; connection in progress.

3× PV/BESS sites totalling 14.8 MW @ 20 kV (Europe)

Category B/C compliance: PCC impedance, load flow, FRT, LoM settings, model validation. All sites successfully connected.

Solar and BESS Compliance Assessment

with Renergi Services

Meadows Solar Farm – 35 MW @ 132 kV (UK)

Full G99 suite including load-flow, fault-level, P28, G5/5, FRT/FFCI, frequency response and dynamic voltage/reactive-power control.

Littleton Solar Farm – 22 MW @ 66kV (UK)

Full G99, P28 and G5/4-1 compliance, FRT, FFCI, and frequency response.

Kimpton Down Solar & BESS Facility – 42.7 MW @ 132 kV

G99 assessments covering load-flow, fault-level, P28, FRT, FFCL, and frequency-response.

Offshore Wind Farm Design

with Renergi Services

Transmission-connected offshore wind 2 x 400MW @ 220kV (Pre-FEED, Ireland)

HV electrical layout optioneering and reactive power strategy to meet Grid Code; HV equipment sizing and system design.

Offshore wind-to-hydrogen FEED (UK)

One-of-its-kind, load flow, dynamic simulations, and control philosophy for integrated wind + hydrogen production.

Offshore platform power import (Europe)

Operational philosophy for an islanded oil & gas platform connecting to onshore grid for green-power import.

OFTO reliability calculation (UK, Ireland)

Detailed availability and reliability assessment for offshore transmission system in the UK and Ireland.

Solar and BESS Projects

with Zero Grid Consulting

Solar Farm – 70 MW @ 138 kV (USA)

Grid-code compliance: reactive capability, voltage/frequency response, stability and FRT under multiple contingencies.

Blackhillock BESS – 200 MW @ 275 kV (NG ESO, UK)

Stability Pathfinder feasibility using EMT simulations to demonstrate system-strength, inertia, frequency-response and FRT capability of a grid-forming BESS.

Reactive-Power Capability Studies – 2 × 60 MW Wind Farms @ 132 kV (SPT, UK)

Evaluated reactive-compensation requirements and Grid Code compliance.

Solar Farm – 165.6 MW @ 33 kV (Australia)

Grid-code compliance studies covering reactive capability, frequency and active-power response, voltage stability, FRT and protection coordination.

Wing Solar Farm – 50 MW @ 33 kV (NGED, UK)

Two-stage Grid Code and Power-Quality Feasibility and Compliance programme. Feasibility studies identified technical risks in G99/P28/G5/5 compliance and reactive-power or harmonic-filtering needs. Analyses included short-circuit, load-flow, reactive-capability, EMT voltage-change, flicker and harmonic-penetration studies, and dynamic tests for FRT, FFCL and voltage-control capability.

Project experience of RenSolv engineers

Representative experience delivered by RenSolv engineers across multiple markets, outside of RenSolv. Client names withheld for confidentiality; scope and ratings shown for context.

🟦 Transmission and Distribution

Voltage pathfinder studies @ 132–400 kV (UK)

Reactive support from DER to mitigate high voltage on transmission; contingency and optimal VAR dispatch.

HVDC island integration (Shetland, ~600 MW) (UK)

Stability analysis for islanded grid; frequency and voltage control strategies.

Voltage stability and RoCoF studies @ 110kV (Ireland)

Impact of SVC, MSC and STATCOM on voltage stability and RoCoF was assessed through dynamic stability simulations.

System restoration feasibility (UK)

Dynamic studies for black-start from distributed generation; islanding and resynchronisation.

🟨 Solar Projects

50 MW PV (NGED, UK)

Feasibility & compliance: G99, P28, G5/5, short-circuit, reactive capability; private-wire interface.

33.5 MW PV (NGED, UK)

G99 study with G5/5 harmonic analysis and flicker indices per P28.

70 MW PV @ 138 kV (USA)

Grid-code package including reactive capability, stability and protection coordination.

165 MW PV @ 33 kV (Australia)

Compliance studies covering voltage stability, harmonics, and control model validation.

🟧 BESS Projects

200 MW BESS @ 275 kV (UK)

EMT feasibility for stability pathfinder: system strength, inertia, frequency response and fault-ride through.

50 MW BESS @ 33 kV (NGED, UK)

G99 compliance: load flow, short-circuit, FRT, FFCL, G5/5, P28, and dynamic control validation.

Portfolio BESS @ 33–132 kV (UK)

Stability and compliance studies for multiple UK/Ireland projects, including model verification.

Distribution BESS < 100 MW (UK)

Reactive power optimisation and voltage compliance in hybrid configurations.

🟥 Gas Power & Hydro Plants

Thermal plant integration (6× 350 MW) @ via 500 kV series-compensated lines (China)

Load flow, short-circuit, transient stability; series compensation optimisation.

Three HVDC links (7.2 GW) receiving-end stability (China)

Commutation-failure and stability studies for receiving-end grid.

Three Gorges (26× 700 MW) (China)

Transmission integration studies: load flow, fault levels, and stability.

Dachaoshan Hydropower 6× 225 MW (China)

Connection feasibility, reactive compensation, and network upgrade design.

🟩 Onshore Wind Projects

Two wind farms ~60 MW @ 132 kV

Reactive compensation and G99 envelope studies.

GB/Ireland wind portfolio

G99 RMS studies including FRT, voltage/frequency control, and model validation.

Multi-site applications (11–132 kV)

Grid application support, SLDs, and protection coordination.

Small-scale wind (≤ 10 MW)

Simplified compliance under G99 Type B/C thresholds.

🟦 Offshore Wind Projects (Pre-FEED / FEED / Detailed Design)

UK OWF extension (Pre-FEED) ~250MW @ 132kV (UK)

HV layout optioneering, losses, and harmonic review; cable/transformer/filter concept design.

Confidential OWF (FEED) ~350MW @132kV (UK)

Reactive compensation sizing (SVC TCR/TSC), voltage control and operational philosophy.

Confidential OWF (Detailed Design) ~350MW @132kV (UK)

Load flow, reactive power, losses, fault level, and RMS dynamics in DIgSILENT.

Export system engineering (Europe)

Cable damage and transformer thermal-life assessments (170 kV export cable).

🟪 Grid Connection Projects

8 projects (11–132 kV) (UK)

ENA forms, connection applications, and DNO/TO engagement.

Feasibility screening (GB/IE)

Finding new sites for connection, capacity headroom tracking, reinforcement review, and early-stage connection mapping.

Connection design support (UK)

SLDs, protection concepts, and control interfaces.

Portfolio screening for developers (UK)

Substation short-lists with cost envelopes and reinforcement triggers.

🟫 Technical Due Diligence

2 x UK OWFs > 250 MW (total)

Design and compliance review for lenders.

4 x OWFs (Germany)

Redundancy, losses, and installation methodology technical review.

OFTO vendor review (UK)

Reactive compensation, losses, and reliability.

3 x Onshore wind assets (Norway)

Grid-agreement and schedule risk assessments.

⬛ Industrial Projects

Industrial capacity upgrade @ 11–33 kV (UK)

Contingency, fault levels, breaker ratings, and motor-start voltage dip.

Private-wire pumping station (UK)

Fault level, power flow, protection and flicker analysis.

Oil & gas platform (UK)

Operating modes for green-power import and grid-tie controls.

Industrial estate LV expansion (UK)

Protection sizing and transformer capacity reviews.

🟨 Innovation Projects

System strength & inertia measurement (UK)

R&D leadership; granted patents (US 11914355, EP 4166955).

Distribution ANM prototype (UK)

AI-based state estimation, multi-step contingency tool, and dynamic capability mapping.

Electricity System Restoration (UK)

Methodology and simulation framework for DER-based black-start.

Harmonic strategy (Ireland)

Network-wide filter placement and compliance with G5/5 limits.

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