Grid Constraint Audit
A desktop review for businesses that have received a DNO upgrade quote, export limit or connection refusal.
- DNO quote review
- Connection capacity triage
- Solar and battery next steps
Commercial Solar When the Grid Says No
Battery storage, export limitation and electrical-led design for businesses facing DNO upgrade quotes, connection refusals, zero-export solar conditions or constrained grid connections.
MCS-certified commercial solarBattery-backed constrained-export designElectrical contractor led DNO review
Commercial focus
For sites where grid capacity is blocking solar
For commercial decision-makers who need electrical risk, uptime and compliance managed with clear evidence.
Warehouses with DNO upgrade quotesFood production and cold storage sitesRetail and cash & carry operators100kWp to 2MWp commercial solar prospectsBusinesses offered zero-export connectionsSites considering productised PPAs
A DNO upgrade quote has made solar look unviable
The site has received a connection refusal or export cap
Zero-export solar needs a robust control strategy
PV generation and site load do not naturally line up
Battery storage needs to be sized against real constraints
A PPA provider needs a credible grid and savings case
What is included
What the grid-constrained solar service covers
Scope can be tailored by site, portfolio, access constraints and the level of reporting required.
Grid Constraint Audit for DNO quotes and refusals
Import and export capacity review
Zero-export and constrained-export solar strategy
Battery storage sizing for commercial load profiles
Solar PV concept sizing from 100kWp to 2MWp
DNO application and G99 route recommendations
Controls, metering and export limitation scope
ROI and payback assumptions for feasibility packs
PPA-ready evidence for mid-market commercial sites
Options
Productised routes into a constrained-grid project
Zero-export solar design
A controlled solar PV concept for sites that can use generation on site but cannot export to the grid.
- Export limitation
- Load matching
- Controls and metering
Solar + battery feasibility
A battery-backed solar model for sites where storage can unlock savings or avoid reinforcement cost.
- Battery sizing
- Self-consumption model
- PPA-ready outputs
Productised audit
Grid Constraint Audit Pricing
A fixed desktop review creates a low-friction route for sites with a DNO quote, export cap or connection refusal.
ServiceTypical scopeGuide price
Grid Constraint AuditDesktop review of DNO quote/refusal, site load, roof capacity and solar-battery routeFree for qualified 100kWp-2MWp leads, otherwise from £495 + VAT
Solar + battery feasibility packIndicative PV size, battery range, constrained-export strategy and ROI assumptionsFrom £750 + VAT
DNO application supportG99 route, export limitation evidence and DNO response handlingQuoted after audit
Battery concept designBattery capacity, controls, metering and high-level commercial caseQuoted after audit
Audit outputs are desktop findings, not a final design. Final proposals depend on site survey, structural review, DNO acceptance, equipment availability and agreed commercial model.
Reporting
What the audit gives you
The aim is to turn a grid constraint into a decision-ready route: proceed, redesign, stage the project or stop before more budget is spent.
DNO quote or refusal summary
Known import and export constraints
Likely solar PV size band
Battery storage role and indicative capacity range
Zero-export or constrained-export controls required
Next-step recommendation with commercial risks
Areas covered
Commercial support across London, Hertfordshire and Essex
Wire Now supports commercial premises across the London, Hertfordshire and Essex corridor, including North London, Greater London and surrounding areas.
Related links
Yayla 250kWp + 500kWh Case StudyBattery-backed commercial solar used to avoid a £1.5m DNO upgrade cost.Holland Bazaar 250kWp Solar Case StudyA 250kWp commercial rooftop solar installation delivered in around 3 weeks.TMC Meat Off-Grid Generator Case StudyCommercial generator power selected when a conventional grid tie-in was too expensive.Solar ROI CalculatorModel payback with the new battery and constrained-export option.Commercial Solar PV InstallationDesign and installation for conventional commercial solar PV projects.
FAQ
Battery Storage & Grid-Constrained Solar questions
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