NIGP 29090: Solar Water Heating Systems and Accessories

NIGP 29090 Solar Water Heating Systems And Accessories, an Item code, encompasses the design, installation, maintenance, and operational support of solar photovoltaic and related energy systems serving municipal facilities. State and local governments under this code are procuring licensed solar contractors for comprehensive lifecycle management — from initial site assessment and engineering through system commissioning, ongoing monitoring, emergency standby response, and eventual decommissioning. Recent solicitations show demand for both full-service solar installation and maintenance partnerships and targeted equipment procurement (inverters, optimizers, and related components). Issuing bodies include city engineering departments, county governments, and municipal procurement offices; these entities typically structure awards as task-order contracts or renewable agreements with performance-based evaluation criteria that weight experience, financial offer, operational capability, and sustainability outcomes alongside cost.

Georgia dominates recent activity in this code, with the City of South Fulton issuing RFP 26_09 in March 2026 (response due April 9, 2026) for standby response and maintenance services on municipal solar PV systems—requiring ten years of verifiable commercial or municipal experience, $2,000,000 liability insurance, and tiered emergency response times—and Fayette County posting RFP #26087-P in February 2026 (response due March 17, 2026) for a comprehensive Solar Energy Initiative spanning design, installation, maintenance, and decommissioning. The City of Madison, Wisconsin, issued RFQ #5506-0-2026-AH on February 20, 2026 (response due March 6, 2026) for SolarEdge inverters and commercial power optimizers to be delivered to 3901 Hanson Road. The City of Madison's solicitation includes a local vendor preference advantage for suppliers registered on the City's local purchasing program website. All three recent opportunities reflect multi-year or renewable contract structures with no guaranteed quantities and no explicit set-asides for disadvantaged enterprises.