Green Solutions
for Homes & Businesses
Renwaves offers data-driven engineering for solar energy, building efficiency, electric vehicles, and renewable system design. Get clear numbers and practical solutions for your home and business.
Calculation that Pays for Itself
Get accurate sizing and recommendations based on your needs, not sponsorships, to improve your building’s energy efficiency and save money on your bills.
Building Energy Simulation
See loads, comfort and annual consumption before you invest.
- Input Location, Geometry, and Building Physics
- Output Thermal Loads, Energy Consumption, and Improvement Recommendations
PV System Design
Design array layout, stringing and yield simulation for roof & ground mounts.
HVAC Calculation
Ask for a room-by-room load math for right-sized, quiet, efficient equipment.
Energy Cost Estimation
Get the full financial picture, upfront. Tariffs, LCOE and payback.
Why Use Renwaves?
The six principles behind our services.
You Choose the Brand
We recommend based on your project needs, not sponsorships. You always choose the brand or device model.
ASHRAE-Aligned
We run every model on ASHRAE, ISO, and TMY3 standards. You can audit our method and assumptions line by line.
Transparent Math
We provide clear numbers and the procedure we have obtained LCOE, payback, peak load, and annual yield.
Fast Turnaround
You get results within 5–15 working days. Urgent scopes are handled in 48h with a pre-quote.
Advanced Tools AI-Assisted
We offer professional-grade simulation engines and climate databases, like EnergyPlus, PVsyst, Design Builder, and Carrier to provide validated outputs. AI accelerates the modeling; a licensed engineer reviews and signs off on every result before it reaches you.
For Families & Businesses
You get professional calculations for your home to bring comfort to your family at an affordable cost.
Designed by engineers, built by trusted pros
Our network connects people who plan energy projects with vetted local installers and technicians.
Need an installer?
Tell us what you need and where you are. We connect you with vetted local installers and technicians for solar, EV charging, HVAC and smart home projects.
Are you an installer or technician?
Join our partner network to get listed in our directory and receive project enquiries from people planning energy projects in your area.
Frequently Asked Questions
Quick answers about our services, pricing, and methods.
// 01What does Renwaves do?
Renwaves is an engineering group that provides data-driven calculations for solar energy, building efficiency, and renewable system design. We turn your drawings, bills, or ideas into clear numbers you can decide on, without sponsorship influence or sales pressure.
// 02Which services does Renwaves offer?
We offer 8 core services, including PV system design, building energy simulation, HVAC calculation, energy cost estimation, energy audits, wind turbine calculation, and smart home design. Each one ends with a report that shows the method and results. See the services page for details.
// 03How does Renwaves charge for its work?
We work for a fixed fee agreed before the project starts, and we take 0% commission on equipment. Our advice is based on your project needs, not sponsorships, and you always choose the brand or device model.
// 04How accurate are your simulations?
Our simulations average about ±6% accuracy. We run every model on ASHRAE, ISO, and TMY3 standards and share our assumptions, so you can check the method line by line. Results still depend on the quality of the data you provide.
// 05How long does a project take?
Most results arrive within 5 to 15 working days, and the average turnaround is about 12 days. Urgent scopes can be handled in 48 hours with a pre-quote. Timing depends on project size and how complete your drawings and bills are.
// 06Do you use AI in your calculations?
Yes. AI speeds up the modeling, and a licensed engineer reviews and signs off on every result before it reaches you. We work with professional tools such as EnergyPlus, PVsyst, DesignBuilder, and Carrier to deliver validated outputs.
// 07Which countries do you work in?
We have modeled 120+ projects across 14 countries and work remotely, so location is rarely a barrier. Our climate databases cover sites worldwide, and we adjust each model to local weather, tariffs, and building practice.
// 08How do I get started?
Send us your drawings, utility bills, or just an idea through the Get Expert Advice page. We respond within 48 hours with the next steps, so you know the scope and cost before anything is committed.
The scenario matrix ended a six-month internal debate in one meeting. We signed the retrofit the same week.
We finally understand our house. The plan paid for itself in bills, and the kids’ rooms are warm all winter.
Ready to start your energy transition?
Send us your drawings, utility bills, or just an idea. We’ll return clear numbers you can actually decide on.
// Response within 48h · You choose the brand · ASHRAE-aligned · AI-Assisted, Engineer-Verified