Solar Design Services in Indiana

One engineering partner across the whole project lifecycle in Indiana. Proposal drawings to win the job, permit sets to get it approved, detailed engineering to get it built.

950
MW installed in IN
300+
EPCs served worldwide
50+
In-house engineers
11 MW
Largest documented project

Client and engineer figures are portfolio wide across 15 countries. Installed capacity is Indiana specific.

INDIANA DESIGN SERVICES

Engineering capacity for the Indiana market

Indiana is a market where the design has to work harder because the export economics are weak. With excess generation credited well below retail, sizing follows the consumption profile, west-facing orientation gains value where afternoon load peaks, and storage moves from upsell to core economics. Honest production modelling matters more here than in retail netting states because there is less margin for an optimistic estimate.

Solar design and engineering work for a Indiana commercial project

MARKET CONTEXT

The Indiana solar market

Indiana solar operates against one of the least favourable export structures in the Midwest. Retail net metering has been phased out for new systems, replaced by excess distributed generation credit at a rate well below retail, with legacy protection only for systems interconnected before the statutory cut-offs. The practical consequence is that Indiana projects live or die on self-consumption, which pushes storage, load matching and honest production modelling to the centre of the design rather than the margins.

01

Retail net metering has been phased out for new systems, replaced by excess distributed generation credit at a rate substantially below retail.

02

That makes self-consumption the entire value case, so load matching and storage are central rather than optional.

03

Commercial projects need state design release in addition to local permitting, which is a second submittal rather than a formality.

04

Southwestern Indiana carries modestly elevated seismic categories from New Madrid influence that the north of the state does not.

INTERCONNECTION

Indiana utilities we design for

Export compensation decides how a system should be sized and whether storage belongs in the design, which makes it an engineering input rather than a sales detail.

Utility interconnection and export rules in Indiana
Utility Territory Export and compensation
AES Indiana Indianapolis and central Indiana Excess distributed generation credit rather than retail net metering for new systems
Duke Energy Indiana A broad territory across central and southern Indiana Excess distributed generation credit, with its own application and metering requirements
NIPSCO Northern Indiana Excess distributed generation credit, separate interconnection process
Indiana Michigan Power Fort Wayne and northeastern Indiana, part of AEP Excess distributed generation credit with its own terms
CenterPoint Energy Indiana Evansville and southwestern Indiana Excess distributed generation credit and separate application handling

ENGINEERING CONDITIONS

What governs design in Indiana

These conditions decide the structural approach, the racking selection and often the layout itself. We verify them per site rather than applying a regional default.

Wind

Moderate, with tornado-zone considerations and open-terrain exposure on rural sites

Snow

Roughly 20 to 25 psf across most of the state, somewhat higher in the north

Seismic

Low across most of Indiana, with modestly elevated categories in the southwest closer to the New Madrid zone

Also governing

Freeze-thaw cycling affects attachment and flashing detail, and cold winter temperatures raise string open circuit voltage

Compliance scope in Indiana

  • Indiana building rules adopted statewide with local enforcement
  • State design release required for commercial construction in addition to local permits
  • Excess distributed generation credit replacing retail net metering, at a rate substantially below retail
  • Legacy net metering protection for systems interconnected before the statutory cut-off dates

Indiana authorities we file with

Indianapolis Department of Business and Neighborhood ServicesCity of Fort WayneCity of EvansvilleIndiana Department of Homeland SecurityCounty building departments

Each has its own submittal route and recurring review comments. Full detail on the Indiana permit design page.

SAMPLE DELIVERABLES

Output from across the stack

Pages from real projects, one per discipline.

Photorealistic 3D solar design render for a commercial roof in Indiana Pre-design
3D pre-design. Client-facing render before engineering starts.
Three line electrical diagram from a permit plan set for a Indiana project Permitting
Permit design. Three line diagram with sizing, protection and rapid shutdown.
STAAD Pro load combination analysis of a solar mounting structure Engineering
Structural. STAAD Pro load combination analysis, member by member.
Aerial view of a utility scale ground mount solar installation Ground mount
Ground mount. Terrain analysis and row spacing at scale.

SOFTWARE

What we design in

Licensed, current and staffed. You do not carry the software cost or the training overhead.

PVsyst

Yield simulation and bankable production reports with full loss breakdown.

HelioScope

Rapid layout and production modelling with string level detail.

AutoCAD

All drafting output, plan sets and construction drawings.

STAAD Pro

Structural analysis and load verification against Indiana wind, snow and seismic cases.

Aurora Solar

Proposal design and shade analysis, including inside your own account.

SketchUp

3D modelling for pre-design and client facing visualisation.

ENGAGEMENT MODELS

Four ways to work with us

Per project

Send one job, pay for one job. No retainer, no minimum, no onboarding fee.

Testing our output, or occasional demand.

Named designer

One designer owns your account and learns your title block and the Indiana authorities you file with most.

Regular weekly volume.

Dedicated team

Agreed daily capacity with a delivery SLA, functioning as your outsourced design department.

High volume operations.

Overflow support

On call capacity alongside your existing in-house designer, absorbing peak months.

Teams that lose deals when busy.

Working with an India based partner on Indiana projects

We are based in Surat, Gujarat, and our Indiana clients are not. Our engineers work hours that overlap US time zones, so work sent at the end of your day is on your desk the next morning.

On code, the same engineers who produce CEIG approval drawings for an Indian utility also produce NEC compliant sets for US installers. Working across code frameworks daily is why Indiana specifics do not get lost in handoff. Work is covered by NDA and intellectual property transfers to you.

GET STARTED

Get a Indiana Design Services Quote

Tell us what stage you are at and what you need. No retainer, no minimum volume, and you can start with a single Indiana project.

  • We reply within 2 business hours
  • No extra charge for revisions
  • No obligation, no retainer to start

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FAQ

Indiana Solar Design Services FAQs

What solar design services do you provide in Indiana?
Proposal design for the sales stage, permit plan sets for Indiana authorities, 3D pre-design and shade studies, detailed engineering for rooftop and ground mount, civil and structural engineering with STAAD Pro verification, and yield and technical reports. Most Indiana installers start with one service and expand once turnaround and quality are proven.
Do you understand Indiana code and utility requirements?
Yes, and it is the substance of the work rather than a claim. Indiana adopts statewide building rules with local enforcement, and commercial projects route through state design release in addition to local permitting. The dominant design factor is not the code but the compensation structure: Indiana has phased out retail net metering, replacing it with excess distributed generation credit at a rate well below retail.
Which Indiana utilities do you prepare interconnection drawings for?
AES Indiana, Duke Energy Indiana, NIPSCO, Indiana Michigan Power, CenterPoint Energy Indiana. Each expects its own diagram format and documentation, and export rules differ between them, which changes both the sizing case and what the drawings must show.
What is driving solar demand in Indiana right now?
Indiana solar operates against one of the least favourable export structures in the Midwest. Retail net metering has been phased out for new systems, replaced by excess distributed generation credit at a rate well below retail, with legacy protection only for systems interconnected before the statutory cut-offs. The practical consequence is that Indiana projects live or die on self-consumption, which pushes storage, load matching and honest production modelling to the centre of the design rather than the margins.
Can you handle commercial and MW scale work in Indiana?
Yes. Commercial and industrial work brings structural calculations, equipment coordination and interconnection complexity. Our largest documented project is an 11 MW DC rooftop installation on tin shed structures, which required structural verification across dozens of shed roofs alongside the electrical design.
How do you quality check drawings before delivery?
A second engineer reviews every set against a jurisdiction specific checklist before it leaves us. The reviewer is not the person who drew it, because the fastest way to miss a setback error is to check your own work. Structural output is verified in STAAD Pro rather than assumed from a racking table.
Who owns the drawings and the intellectual property?
You do. Work is covered by NDA and all intellectual property in the deliverables transfers to you. We do not reuse your drawings, your customer data or your templates for anyone else.
Can we start with a single Indiana project?
Yes. No retainer, no minimum volume, no onboarding fee. Most clients send one project, check the output, then scale.
What structural conditions do you design for in Indiana?
Wind: moderate, with tornado-zone considerations and open-terrain exposure on rural sites. Snow: roughly 20 to 25 psf across most of the state, somewhat higher in the north. Seismic: low across most of Indiana, with modestly elevated categories in the southwest closer to the New Madrid zone. Also governing: freeze-thaw cycling affects attachment and flashing detail, and cold winter temperatures raise string open circuit voltage. These decide the racking selection and attachment schedule, so we verify them per site rather than applying a regional default.
What compliance requirements apply in Indiana?
Indiana building rules adopted statewide with local enforcement. State design release required for commercial construction in addition to local permits. Excess distributed generation credit replacing retail net metering, at a rate substantially below retail. Legacy net metering protection for systems interconnected before the statutory cut-off dates. We work from these rather than a national template, because each can produce a review comment on an otherwise sound design.
Which Indiana authorities do you work with?
Indianapolis Department of Business and Neighborhood Services (Indianapolis and Marion County): consolidated city-county authority handling the highest volume in the state. City of Fort Wayne (Fort Wayne): northern Indiana snow loading with an established residential process. City of Evansville (Evansville): southwestern Indiana, closer to the New Madrid seismic influence than the north of the state. Indiana Department of Homeland Security (Commercial design release statewide): commercial projects need state design release in addition to local permitting, which is a separate submittal. County building departments (Much of rural Indiana): enforcement varies below city level, with some counties having limited permitting capacity.
Did Indiana really end net metering?
For new systems, effectively yes. Retail net metering has been phased out and replaced with excess distributed generation credit at a rate substantially below retail, with legacy protection for systems interconnected before the statutory cut-off dates. Exported energy is therefore worth considerably less than energy the customer consumes on site.
How should that change the system design?
It moves the question from how much roof is available to how much generation the customer can actually use. Array sizing follows the load profile rather than annual consumption, orientation choices shift toward matching afternoon demand, and storage becomes part of the core economics. Designing an Indiana system as if retail netting applied overstates the return.

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