RIH Engineering is your outsourced solar design team for US solar EPCs, installers, developers and roofing companies scaling into solar. We produce AHJ-ready permit plan sets, PE-stamped where required, aligned to NEC 2026 and every major utility interconnection format, including NYC DOB and NYS Unified Solar Permit filings, ConEd, PSEG Long Island, National Grid and VDER documentation in New York; and PSE&G, JCP&L and NJBPU/TREC-II submissions in New Jersey. You get a dedicated engineering team that learns your standards, delivers to your templates, and takes permit-revision cycles off your plate.
We have delivered over 6,500 designs across residential, commercial, community and utility-scale projects, including more than 3,000 Helioscope designs for a single US client without a missed deadline. Every week you wait to move engineering off your senior team is another week competitors capture the installers and rooftop volume you could have served. Solar EPCs that build their back-office design engine early are the ones scaling to 100+ projects a month without hiring locally. The others keep paying US engineer salaries and watching margin evaporate.
Our team produces preliminary designs, bankable layouts, AHJ-ready permit plan sets, single-line diagrams (SLDs), shading analysis, battery storage electrical design and interconnection application support, using Helioscope, Aurora Solar and AutoCAD as our core stack.
Tools & Standards: Helioscope, Aurora Solar, AutoCAD
Solar design outsourcing means an outsourced engineering team like RIH Engineering produces your PV layouts, permit plan sets and SLDs to your standards, so your in-house engineers focus on sales, site work and project delivery.
Yes. We prepare permit plan sets aligned to US jurisdiction (AHJ) and utility requirements, including layouts, SLDs, labels and structural attachment details, ready for your PE review and stamping.
Typical preliminary designs are delivered within 24-48 hours; full permit sets depend on project size. Turnaround SLAs are agreed per client.
We work on a dedicated resource model: named engineers are assigned to your account and act as a direct extension of your team, with a single point of contact you speak to every day.
Tell us what you need. We'll tell you exactly how we can help, within 24 business hours.
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