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I represent the owner of a multi-unit building with 20 Units. Seventeen - 1-Bedroom Units @650SF and Three Studios @450 SF. Ovens/Ranges are GAS, and Hot Water is Central (also gas). Not loading Apt Electric Panels Units have D/W, W/D, Central AC (with individual Roof Compressors and interior AHUs) Refrigerator, LED Lighting and normal Countertop Kitchen Appliances. No garbage disposals/Aerators. In the Meter Room, FPL provides 600 AMPs Breaker to 20 Meters with 50 Amp Breakers feeding each Unit interior Elec Panel. (house panel is separate and not loading off the 600 Amps Breaker) Question. Based on Florida Electric Code, and the existing 600 Amp FPL Service, can I increase the Unit Breaker sizes to 60, 65, or 70 amps for each unit? Looking for an FL Licensed Electrical Engineer to answer this question. Deliver Signed Opinion Letter along with any necessary calculations.
Project ID: 40410136
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Dear Client, I understand you own a 20‑unit building in Florida with 17 one‑bedroom units and 3 studios. You have a 600 A FPL service feeding 20 meters, with 50 A breakers to each unit’s interior panel, gas cooking, gas water heating, and central cooling. You want to know if you can raise each unit’s breaker size to 60/65/70 A under Florida Electric Code, and you need a signed opinion letter with calculations. I will perform a code‑driven assessment using Florida Electrical Code and NEC 220 load rules, consider gas appliances and central gas water heating, central AC with roof compressors and interior AHUs, and verify panel ratings and feeder capacity. The goal is to determine if the existing service can support increased unit breakers or if alternative options (like a service upgrade or load management) are required. I will deliver a stamped Florida PE opinion letter, supported by clear calculations and worksheets, plus practical recommendations and an updated single‑line diagram. The deliverables will be suitable for permitting and client records. What is the current service upgrade path and any local AHJ preferences for documenting load analysis and a stamped Florida PE opinion letter? Best regards, Shamshad
$750 USD in 22 days
6.6
6.6

Hi I can surely assist you in writing or drafting or creating a clear, professional proposal and coordinating with a Florida Licensed Electrical Engineer to review your building’s electrical capacity and code compliance. I understand your setup (600A service, 20 units, gas appliances, central hot water, individual AC systems). I will help prepare a detailed request, ensure proper load calculations per Florida/NEC codes, and arrange a signed opinion letter confirming whether breaker sizes can be safely increased to 60–70 amps. I will keep everything simple, accurate, and ready for submission. Before we proceed: 1. Do you have existing load calculations or panel schedules available? 2. Is there any planned future load increase (EV chargers, upgrades, etc.)? Looking forward to assisting you. Thanks
$250 USD in 7 days
5.6
5.6

Hi, how are you doing? I went through your project description and I can help you in your project. your project requirements perfectly match my expertise. We are a team of Electrical and Electronics engineers, we have successfully completed 1000+ Projects for multiple regular clients from OMAN, UK, USA, Australia, Canada, France, Germany, Lebanon and many other countries. We are providing our services in following areas: Antenna Design (CST, HFSS) Embedded C Programming. VHDL/Verilog, Quartus/Vivado, LabVIEW/ Multisim/PSPICE/VLSI MATLAB/SIMULINK Network Simulator NS2/NS3 Microcontroller like Arduino, Raspberry Pi, FPGA, AVR, PIC, STM32 and ESP32. IDEs like Keil MDK V5, ATmel studio and MPLab XC8. PLCs / SCADA PCB Designing Proteus, Eagle, KiCAD and Altium IOT Technologies like Ethernet, GSM GPRS. HTTP Restful APIs connection for IOT Communications. Also, we have good command over report writing, I can show you many samples of our previous reports. Kindly consider us for your project and text me so that we can further discuss specifically about your project's main goals and requirements.
$500 USD in 7 days
6.0
6.0

Hello, I understand you need a licensed Electrical Engineer opinion on whether a 600A FPL service with 20 × 50A unit breakers can be increased to 60/65/70A per unit under Florida code, along with a signed opinion letter and supporting calculations for submission. I will perform NEC-based load calculations (NEC Article 220), including residential demand factors, HVAC and appliance loads, and diversity for multifamily occupancy. I will evaluate the 600A service capacity, feeder and panel bus ratings, breaker coordination, and FPL service limitations to determine the maximum compliant breaker size per unit without overloading the system or violating code. Deliverables will include a signed engineering opinion letter suitable for authority submission, full calculation breakdown, and a clear compliance recommendation. The output will be structured so it can be directly attached to your application or provided to the electrical authority or utility for review. Questions: Are all HVAC systems fully electric loads, or are any components gas-assisted or hybrid? Do you have existing panel schedules or any prior load study for the building? Thanks, Asif
$750 USD in 10 days
5.1
5.1

Hello sir, As a Senior Electrical Power Systems Engineer with extensive experience in Florida Building Code (FBC) and NEC (NFPA 70) compliance, I specialize in multifamily load calculations and utility service entrance optimization. I will lead the technical evaluation of your 20-unit residential meter stack, ensuring that any proposed breaker increase is technically coordinated with the existing 600 Amp FPL service and the diversity factors allowed under NEC Article 220. Engineering Goal & Preliminary Assessment Summarized as the delivery of Code-Compliant Power Distribution Scaling. My solution solves the "Service Overload" risk by utilizing the Optional Calculation Method for Multifamily Dwellings (NEC 220.84), which allows for significant demand diversity for a 20-unit building. I will implement a Load-to-Breaker Sensitivity Analysis that accounts for your gas-fired ranges and central hot water, calculating the exact Volt-Ampere (VA) demand of the AC compressors, AHUs, and appliances. While increasing individual unit breakers to 60 or 70 Amps may be feasible at the branch level, I must reconcile this against the 5-minute demand peak of the 600 Amp main to ensure we do not trigger a "Main Service Upgrade" mandate from FPL. For a comprehensive view of our capabilities, please explore our portfolio for work samples and client testimonials. Regards, Eslam
$400 USD in 4 days
5.2
5.2

Hello ✅ Can you confirm total connected load per unit (AC tonnage, MCA/MOCP, W/D ratings) to validate NEC demand factors? ✅ Is the 600A FPL service limited by service conductors/bus rating or only the main breaker, and what is the meter stack bus rating? I can evaluate your service using NEC demand calculations (Article 220) and determine if increasing unit breakers to 60–70A is compliant without exceeding the 600A service capacity. I have experience with multi-family load studies, FPL coordination, and issuing Florida PE signed opinion letters. My approach ensures code-compliant load diversity, feeder/service checks, and clear justification for AHJ approval. Let’s connect to review your data and proceed. Best regards,
$500 USD in 7 days
3.0
3.0

Hello, As an FL Licensed Civil & Structural Engineer with a keen understanding of electric meter room configurations and electrical code requirements, I have the skills and experience necessary to provide you with a comprehensive answer to your question. Over my ten-year career, my work has always centered around delivering practical, code-compliant engineering solutions that guarantee safety and efficiency. To address your concern about modifying the unit breaker sizes based on the existing 600 Amp FPL service, I will perform all the necessary calculations and deliver a signed opinion letter cementing my findings. I am fully conversant in the Florida Electrical Code and will ensure your building conforms to it strictly, assuring you avoid legal tangles down the line. With my long-time service-cultivated reputation for professional integrity, reliable communication, cost-effective design and precise execution, I believe I am more than just qualified to assist you in this project. Let's analyze your power needs together and make sure that every potential fault is considered for the safety of all occupants within your 20-unit domicile. As we collaborate, I'd also love to share some ways we can identify efficiencies in your network that could reduce overall energy consumption. Stick with me for this project and I assure you, we'll have an electrical system tailored perfectly to your property's needs Thanks!
$350 USD in 3 days
0.0
0.0

Hi there, We’ll address the owner’s Florida-specific electric-load questions directly: with 20 units of mixed 1-bedroom and studio apartments, a 600 A service feeding 50 A per unit, and gas appliances plus central gas water heating, the key issue is whether unit feeders can be increased to 60-70 A without overloading the service. I have spent the last 4 years solving exactly this type of problem, balancing AHJ rules, utility constraints, and practical panel loading, and I will lay out a defensible path to a signed opinion letter. ✅Scope of work - Review FL Electric Code loadcalc methodology and utility service ratings - Perform load calculations for gas appliances, central water heating, and HVAC to determine feasible per-unit feeder sizes - Assess 600 A service capacity, diversity factors, and required feeder withdrawal - Produce a signed opinion letter with calculation workbooks and code citations ✅Deliverables - Calculated feeder sizing recommendations (60/65/70 A options) - Formal stamped opinion letter - Supporting spreadsheets and AHJ-ready drawings (where applicable) I can start immediately and will coordinate any data needed from the property to complete a robust, defensible analysis. If there are existing utility agreements or meter-room configurations, Please share them so I can tailor the calculations precisely. I am looking forward to working with you. Best Regards Chris
$250 USD in 5 days
0.0
0.0

Hello, I have reviewed your project details regarding the 20-unit residential building and the existing 600A FPL service. I can perform a detailed load analysis based on NEC and Florida electrical code requirements to evaluate whether upgrading unit breakers to 60A, 65A, or 70A is feasible. My approach will include a proper diversified load calculation considering HVAC, kitchen appliances, water heating, and general receptacle loads. I will also check feeder capacity, demand factors, and service headroom under the existing 600A supply. Based on the results, I will clearly confirm if breaker upgrades are safe and code-compliant or not. I can also prepare a professional technical opinion letter with full calculations and justification. If required, the document can be structured in a format ready for PE stamping or further licensing review. You will receive a clear, well-documented report with final recommendation. I can start immediately and deliver within your required timeline. Best regards, Engr. Muhammad Uzair
$280 USD in 5 days
0.0
0.0

Hello, With my extensive experience in civil, structural, and MEP engineering, I am confident in my ability to provide you with a thorough understanding of your multi-unit building's electrical capacity. I have worked with numerous residential projects varying in scale and complexity, which enables me to conform to local codes including the Florida Electric Code. Specifically, regarding the Meter Room capacity question, I can accurately determine whether increasing the Unit Breaker sizes to 60, 65, or 70 amps for each unit will comply with the existing 600 Amp FPL Service and the state code. I am not only capable of providing an informed answer but also delivering a signed opinion letter along with any necessary calculations to ensure there is unambiguous evidence for any permitting matters. By choosing me, you aren't just hiring an electrical engineer; you're investing in a problem-solver who will expedite this process for you while maintaining professionalism and open communication throughout. Let's embark on this project together; send over your sketches, plans, or project details and rest easy knowing you've made the right decision. Thanks!
$250 USD in 3 days
0.0
0.0

I can assess your apartment’s breaker configuration against the FPL meter room capacity to ensure your electrical system is safe, compliant, and properly balanced. With experience in residential load analysis and utility coordination, I will review panel schedules, breaker ratings, and connected loads, then compare them with the available service capacity from Florida Power & Light. This includes identifying any overload risks, phase imbalances, or code compliance concerns, and recommending adjustments that align with electrical standards and utility requirements. In addition, I will provide a clear report outlining load calculations, demand factors, and any necessary upgrades or reconfigurations to optimize system performance. If needed, I can suggest panel upgrades, redistribution of circuits, or coordination steps with the utility provider to support increased capacity. My goal is to deliver a practical, code-aligned solution that ensures reliability, safety, and efficient power distribution for your apartment setup.
$250 USD in 7 days
0.0
0.0

Hello, I can assist with evaluating your electrical service capacity and providing a signed engineering opinion letter regarding the feasibility of increasing unit breaker sizes for your multi-unit building. Project Understanding You have a 20-unit building with: 17 one-bedroom units (~650 SF) 3 studio units (~450 SF) Existing 600A service from FPL feeding 20 meters with 50A breakers per unit Gas ranges and central gas hot water (reducing electrical load) Typical residential loads including HVAC (individual systems), appliances, and lighting You would like to determine if unit breakers can be increased to 60A, 65A, or 70A while remaining compliant. Scope of Services Review of your existing electrical configuration and load characteristics Perform load calculations in accordance with: National Electrical Code (NEC) Florida Building Code (as applicable to electrical systems) Evaluate: Service capacity vs. diversified load Demand factors for multi-family dwelling units Impact of increasing breaker sizes across all units Provide: Clear determination of allowable breaker sizes Engineering justification and assumptions Deliverables Signed and sealed engineering opinion letter (PDF) Supporting load calculations Recommendations (if upgrades or limitations are identified)
$500 USD in 7 days
0.0
0.0

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