sustainable-systems

# Sustainable Systems Quick Reference This skill covers renewable energy systems, EV charging infrastructure, battery storage, water conservation, smart building integration, and green building certification for commercial construction projects. ## System Categories Quick Reference | Category | Systems | Key Reference | |----------|---------|---------------| | Solar Photovoltaic | Rooftop, ground-mount, carports, BIPV | [Solar PV Overview](references/solar-pv-overview.md) | | Solar Installation | Mounting, racking, structural coordination | [Mounting & Structural](references/solar-mounting-structural.md) | | Solar Electrical | DC/AC systems, interconnection, rapid shutdown | [Electrical & Interconnection](references/solar-electrical-interconnection.md) | | EV Charging | Level 1/2, DCFC, EVSE equipment | [EV Infrastructure](references/ev-charging-infrastructure.md) | | EV Electrical | Load calculations, load management, ADA | [EV Electrical](references/ev-electrical-requirements.md) | | Battery Storage | Lithium-ion, BESS, fire safety | [Battery Storage](references/battery-energy-storage.md) | | Water Conservation | Rainwater harvesting, greywater, reclaimed | [Rainwater](references/rainwater-harvesting.md), [Greywater](references/greywater-systems.md) | | Smart Building | BAS, IoT, controls integration | [Smart Building](references/smart-building-integration.md) | | Energy Management | Monitoring, analytics, demand response | [Energy Management](references/energy-management-systems.md) | | Geothermal | Ground-source heat pumps, loops | [Geothermal](references/geothermal-systems.md) | | Solar Thermal | Hot water, collectors, storage | [Solar Thermal](references/solar-thermal.md) | | Green Roofs | Extensive, intensive, cool roofs | [Green & Cool Roofs](references/green-roofs-cool-roofs.md) | | Daylighting | Skylights, TDDs, controls | [Daylighting](references/daylighting-systems.md) | | Certification | LEED, ENERGY STAR, WELL | [Certification](references/leed-green-certification.md) | | Incentives | Federal ITC, state, utility rebates | [Incentives](references/incentives-rebates.md) | ## Code & Compliance Quick Reference | Code/Standard | Application | Reference | |--------------|-------------|-----------| | NEC Article 690 | Solar PV systems | [Code Compliance](references/code-compliance.md) | | NEC Article 625 | EV charging equipment | [Code Compliance](references/code-compliance.md) | | NEC Article 706 | Energy storage systems | [Code Compliance](references/code-compliance.md) | | NFPA 855 | Battery storage fire safety | [Code Compliance](references/code-compliance.md) | | IBC/IFC | Fire access, pathways, structural | [Code Compliance](references/code-compliance.md) | | UL 9540 | Battery system certification | [Battery Storage](references/battery-energy-storage.md) | ## PM Coordination Quick Reference | Phase | Key Activities | Reference | |-------|----------------|-----------| | Design | Consultant coordination, utility engagement, incentive identification | [Coordination](references/coordination-sequencing.md) | | Procurement | Specialty contractor selection, equipment submittals | [Specifications](references/specifications-csi.md) | | Installation | Sequencing, trade coordination, inspections | [Coordination](references/coordination-sequencing.md) | | Commissioning | Testing, verification, documentation | [Commissioning](references/commissioning-verification.md) | | Safety | Electrical hazards, fall protection, fire safety | [Safety Hazards](references/safety-hazards.md) | ## Solar PV System Types | Type | Application | Key Considerations | |------|-------------|-------------------| | Rooftop - Flat | Commercial buildings | Ballasted vs attached, roof loading, drainage | | Rooftop - Pitched | Various buildings | Attachment methods, flashing, roof warranty | | Ground-Mount Fixed | Open land | Foundation type, grading, fencing | | Ground-Mount Tracking | Open land | Single/dual-axis, higher production, more maintenance | | Carport/Canopy | Parking areas | Structural design, clearances, dual benefit | | BIPV | Building-integrated | Façade, skylights, specialty applications | ## EV Charging Levels | Level | Voltage | Power | Range/Hour | Typical Use | |-------|---------|-------|------------|-------------| | Level 1 | 120V AC | 1.4-1.9 kW | 3-5 miles | Residential overnight | | Level 2 | 208-240V AC | 3.3-19.2 kW | 12-30+ miles | Commercial, workplace | | DCFC | 480V DC | 50-350+ kW | 100+ mi/20-30 min | Fast charging stations | ## Battery Storage Applications | Application | Purpose | Sizing Consideration | |-------------|---------|---------------------| | Peak Demand Reduction | Reduce demand charges | kW based on peak shaving target | | Solar Self-Consumption | Store excess PV | kWh based on daily solar excess | | Backup Power | Critical load support | kWh based on backup duration | | Grid Services | Utility programs | Program requirements | ## LEED Credit Categories | Category | Sustainability System Credits | |----------|------------------------------| | Energy & Atmosphere | On-site renewable energy, green power | | Water Efficiency | Rainwater, greywater, water metering | | Sustainable Sites | Green roofs, cool roofs, heat island | | Indoor Environmental Quality | Daylighting, views, air quality | ## Utility Interconnection Process | Step | Description | Timeline | |------|-------------|----------| | 1. Application | Submit interconnection application | 1-2 weeks | | 2. Engineering Review | Utility reviews system design | 2-8 weeks | | 3. Agreement | Execute interconnection agreement | 1-2 weeks | | 4. Installation | Complete system installation | Per schedule | | 5. Inspection | Utility and AHJ inspections | 1-2 weeks | | 6. PTO | Permission to Operate issued | 1-4 weeks | ## Federal Incentives (ITC) | Technology | Base Credit | Bonus Credits Available | |------------|-------------|------------------------| | Solar PV | 30% | Domestic content (+10%), Energy communities (+10%) | | Battery Storage | 30% | Domestic content (+10%), Energy communities (+10%) | | EV Charging | 30% (up to $100K) | Various qualifications | ## Related Skills Reference | Topic | Related Skill | |-------|---------------| | Electrical systems, panels, wiring | electrical-systems | | HVAC integration, plumbing | mechanical-plumbing-systems | | Roof loading, foundations | structural-trades | | Roofing, waterproofing | building-envelope-exterior | | Battery fire safety, solar fire code | fire-protection-systems | | BAS, controls, monitoring | low-voltage-technology | | Ground-mount, carports, parking | site-improvements-division-32 | | Foundations, underground | early-phase-enabling-trades | | Commissioning procedures | quality-control-closeout | | Documentation, submittals | procore-project-management | ## Detailed Reference Files ### Solar Systems - [Solar PV Overview](references/solar-pv-overview.md) - Fundamentals, installation types, modules, inverters - [Solar Mounting & Structural](references/solar-mounting-structural.md) - Rooftop, ground-mount, carports, structural coordination - [Solar Electrical & Interconnection](references/solar-electrical-interconnection.md) - DC/AC systems, utility interconnection, rapid shutdown, fire code ### EV Charging - [EV Charging Infrastructure](references/ev-charging-infrastructure.md) - Charging levels, EVSE types, networked systems - [EV Electrical Requirements](references/ev-electrical-requirements.md) - Load calculations, design, load management, ADA ### Energy Storage - [Battery Energy Storage](references/battery-energy-storage.md) - Technology, components, applications, fire safety, codes ### Water Systems - [Rainwater Harvesting](references/rainwater-harvesting.md) - Collection, storage, treatment, end uses, codes - [Greywater Systems](references/greywater-systems.md) - Sources, collection, treatment, distribution, codes ### Smart Building - [Smart Building Integration](references/smart-building-integration.md) - BAS, IoT, cybersecurity - [Energy Management Systems](references/energy-management-systems.md) - Monitoring, analytics, demand response ### Additional Sustainability Systems - [Geothermal Systems](references/geothermal-systems.md) - Ground-source heat pumps, loop configurations - [Solar Thermal](references/solar-thermal.md) - Collectors, systems, applications - [Green Roofs & Cool Roofs](references/green-roofs-cool-roofs.md) - Extensive, intensive, cool roof requirements - [Daylighting Systems](references/daylighting-systems.md) - Skylights, TDDs, controls ### Certification & Incentives - [LEED & Green Certification](references/leed-green-certification.md) - LEED, ENERGY STAR, WELL, documentation - [Incentives & Rebates](references/incentives-rebates.md) - Federal, state, utility programs ### Compliance & Coordination - [Code Compliance](references/code-compliance.md) - NEC 690/625/706, NFPA 855, IBC/IFC - [Commissioning & Verification](references/commissioning-verification.md) - Testing, performance verification - [Coordination & Sequencing](references/coordination-sequencing.md) - Design, utility, contractor, installation - [Safety Hazards](references/safety-hazards.md) - Solar, EV, battery, general safety - [Specifications & CSI](references/specifications-csi.md) - Division 26 and related specifications