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Senior Energy Engineer | PE | MSCE | CEM | 20 Years in Energy Modeling, ESPC, Renewables, and Advanced Building Simulations I’m a licensed Professional Engineer and Certified Energy Manager with 20+ years of experience delivering high-value energy engineering solutions for commercial, industrial, and federal clients. My background spans federal ESPC projects, building energy modeling, HVAC system design, renewable integration, financial analysis, and performance optimization for some of the most complex facilities in the world. I specialize in translating technical data into clear, actionable designs, models, and decision tools. My work supports architects, developers, energy service companies, and engineering firms who need reliable calculations, fast turnaround times, and senior-level judgment. What I Can Help You With - Building energy modeling (EnergyPlus/DesignBuilder preferred, but experienced with all major tools: eQUEST, Trace, EnergyPro, DOE-2, Visual DOE) - Overheating analysis, heat loss/heat gain, and HVAC sizing - ESPC/Utility energy project development and savings analysis - Renewable and distributed energy modeling (solar PV, wind, fuel cells, CHP, BESS, microgrids) - Load calculations, fluid flow, and heat transfer simulations - Financial modeling, ROI, LCOE analysis, and cost/savings development - Retro-commissioning, facility audits, and code compliance support - MATLAB and algorithm development for decision tools or control logic - Technical writing, submittals, scopes, M&V plans, and engineering documentation Project Experience Includes I have contributed to or led modeling and analysis efforts for buildings of all scales and levels of complexity, including: - Federal campuses and military installations - Enterprise and hyperscale datacenters - Large commercial and office facilities - Industrial and mission-critical sites - Renewable-integrated and multi-source energy systems Professional Background Before transitioning to consulting, I spent more than a decade leading federal energy projects at Johnson Controls Federal Systems, delivering multimillion-dollar ESPC projects, coordinating multi-disciplinary teams, and serving as technical lead on complex mechanical and energy systems. I later founded DTEC Energy Consulting, where I support clients with modeling, design reviews, HVAC engineering, emissions compliance, and renewable project development. Certifications & Credentials - Professional Engineer (Delaware) - Certified Energy Manager (CEM) - MS Civil Engineering, BS Architectural Engineering, BS Civil Engineering - MBA candidate (Pennsylvania State University) - Member: ASHRAE, AEE Why Clients Hire Me - Senior-level accuracy with fast turnaround - Clear, professional communication - Ability to work from sketches, PDFs, BIM, or fully developed design sets - Comfortable with both straightforward and highly complex buildings - Proven track record with federal and commercial clients

Not all Manual JSD services are created equal! Saving a few dollars now could cost you a lot later on. That's why you should choose me for all of your energy compliance or HVAC design needs. If you are a mechanical engineer doing HVAC projects, let me to do the tedious code compliance documentation for you! I use Wrightsoft to produce Manual J reports based on your plans, either with specified insulation levels or code minimums, as well as Manual S reports based on your selected equipment line (or provide recommendations) and Manual D reports based on your layout or I can provide a layout from scratch. My reports are currently being used by engineers in California, Colorado, Maryland and Florida. I can also provide Manual T spreadsheets for correct register selection and placement to optimize airflow and mixing. For all reports I offer PDF page placement, putting the reports on your provided plan page template or my own page to match your plan size. I also offer a full layout overlay on your floor plan and/or structural plan for coordination and bidding. In addition, I provide Energy Code Compliance in all 50 states: -Title 24 in California, using EnergyPro software. Any kind of residential or non-res project. -Washington state energy forms, res and non-res -Oregon energy reports -Florida R405 reports using EnergyGuage or Wrightsoft -ResCheck for anywhere else in the country -Comcheck for anywhere else in the country No matter where you are, you can have confidence that I can handle your construction project. Even more important, I take the time to weigh all the options and ensure that you get the best results possible. The choices made in the energy calculations can have expensive consequences later. I have the experience necessary to ensure your projects’ compliance, not "by any means necessary", but "by the best means possible." This will save you money throughout your project. In addition to my experience in the energy and HVAC field, I have 20 years of experience as a carpenter, including many years as a contractor. This gives me a unique edge, in that I fully understand how houses are built and know them from the ground up. What does this mean for you? A smooth ride at the building department, and no nasty surprises down the road! So, make the right choice. Contact me regarding your upcoming project! You won't regret it.

I am a skilled Line Rating Engineer with a decade of experience in mechanical engineering, specializing in centrifugal pumps and cladding support systems. My expertise lies in analyzing, developing, and documenting innovative mechanical components while enhancing existing designs. I have successfully collaborated with diverse teams in various roles, including my recent experience with a government agency focused on energy solutions. My hands-on approach and technical knowledge allow me to tackle complex engineering challenges efficiently. If you seek a detail-oriented professional who can elevate your project through solid engineering practices and innovative solutions, I am here to help. Let's discuss how I can contribute to your success.

I'm a solar engineer experienced in designing residential and small commercial PV systems. I also have experience with energy storage design, sketchup, AutoCAD, Helioscope, System Advisor Model, and SolidWorks

I am an Electrical Engineer with 20 years of experience working in Power Engineering in the Electric Utility space. I have experience in Distribution Planning and Operations, Transmission Planning and Operations, Rates, Customer Service, Asset Management, and Corporate Operations. I have specific and direct experience in: Solar PV facility design/interconnection/performance, Electric Vehicle impact assessment and planning, system modeling, distribution loadflow studies, transmission loadflow studies, reliability performance analysis, resiliency planning, and system master planning. I'm a licensed Professional Engineer in multiple states, with the ability to gain reciprocity in other states to meet project requirements. I also have an MBA from Creighton University and certifications in Data Analytics through Google, Python Programming through the University of Michigan, Solar PV facility design through the University of Buffalo, and Engineering Project Management through Rice University. While I can perform detailed electrical engineering study and analysis on both the distribution and transmission grid, an area I particularly enjoy working in is performing analysis on utility and community datasets to derive unique insights and findings. This culminates in developing compelling data visualizations and explaining why they are meaningful to the client.

Electrical Engineering for Buildings, Wireless Telecom sites, Solar Energy, EV Chargers, Data Centers, Crypto-Mining, Hospitals and Infrastructure. Serving clients though out the USA + International jobs. Owner of Rivera Engineering LLC, a state of the art EE firm based in the cloud, with US and global reach. José enjoys leading, and collaborating with his top notch international staff. :-) He is a full time Top 1% Rated Plus consultant that really can take care of your job! Not a drained moonlighter... Fully backed up by a $2,000,000 professional liability (E&O) insurance. See our Upwork reviews and success rate! A leader in Power Engineering for Wireless Telecom sites, Solar Energy and EV Chargers. Has delivered thousands of projects, and calculations for all the major cellular phone carriers in the US (AT&T, Sprint, T-Mobile, Verizon). And many project reviews (and stamps) for Solar and EV Chargers installers nationwide. PE licensed in: AL, AZ, CA, CO, CT, DC, DE, FL, GA, HI, ID, LA, IL, KS, LA, MA, MD, MI, MN, MO, MS, NC, NJ, NM, NV, NY, OK, OR, PA, TN, TX, UT, VA, WA. And adding more as needed. :-) Offers Electrical Engineering supervision (Review and Stamp) for Permit and Construction packages; Buildings, Solar Energy, Telecommunication sites and Infrastructure. MEP team building and leadership. José has evaluated and analyzed electrical building systems. He has provided expert (forensic) opinions related to the cause and extent of damage and prepared recommended remedial actions for property owners, municipalities, insurance carriers, and attorneys. José's project experience includes commercial and residential facilities that have been subject to damage related to installation, construction, design defects, fires and hurricanes. José has performed engineering evaluations following historical events such as Hurricane Harvey and Hurricane Michael. He is an avid enthusiast of energy-efficiency design practices with focus on renewable energy. And a sought out expert IECC-Title 24 practitioner. Has performed many technical reviews of construction documents, building and site surveys, inspections, electrical infrastructure evaluations and systems (LEED) commissioning. Breadth of project experience in city infrastructure, High and Medium Voltage substations, correctional, municipal, aviation, education, healthcare, commercial, industrial and residential facilities. Had the adventure of working in Saudi Arabia; as an advocate to the Kingdom during construction and commissioning of electrical industrial infrastructure. He has a successful career based on work ethics, integrity, team-work and reliability. Computer literate with strong AutoCAD knowledge. And plenty of experience with EE analysis and MS productivity software. Bilingual, English and Spanish. SERVICES Electrical Engineering / AutoCAD / Title 24 / IECC / Fault Calcs / Arc Flash / One line / NEC loads Systems Commissioning / Electronic Security / Forensics / Assessments / EE for Crypto Mining 3rd party Inspections / Engineering Studies / Disaster Recovery / FEMA subcontracting Lighting Design / LEED Certification support / Electrical Testing / Predominant Use Alternative Energy Consulting; Solar and Wind / Power Engineering for Telecom / EE for EV Chargers PE licensed in: Alabama, Arizona, California, Colorado, District of Columbia, Delaware, Florida, Georgia, Hawaii, Idaho, Illinois, Kansas, Louisiana, Maryland, Massachusetts, Michigan, Missouri, Mississippi, New Jersey, North Carolina, Nevada, New Mexico, Nevada, New York, Oklahoma, Oregon, Pennsylvania, Tennessee, Texas, Utah, Virginia, Washington. See more info at: www|riveramep|com