Frequently Asked Questions
At Marinsa Caribbean, the authorized INNIO Jenbacher distributor for Puerto Rico, the Dominican Republic, and Jamaica, we help businesses unlock higher efficiency and energy reliability through Combined Heat & Power (CHP) solutions. Whether you’re exploring cogeneration for your facility or seeking to optimize your existing reciprocating gas engine system, this FAQ covers the most common questions about CHP technology, costs, benefits, maintenance, and performance—so you can make informed decisions about your next power generation investment.
FAQ for Marinsa Caribbean Clients
What is CHP (cogeneration)? A system that generates electricity and captures the heat that would otherwise be wasted, using it for heating, hot water, steam, or cooling. It boosts total energy efficiency.
What efficiency can CHP achieve? Overall (combined) efficiency is typically 70–90%, versus 35–50% for power-only generators. Electrical efficiency alone varies by technology.
Where does CHP make the most sense? Sites with steady thermal load and year‑round electricity demand: hospitals, universities, data centers (with absorption cooling), food processors, district energy, hotels, and greenhouses.
How much does CHP cost, and what is the payback period? Installed costs can range from ~$1,500–$4,000 per kW for small systems and $800–$2,000 per kW for larger ones, plus balance of plant. The payback period is commonly three to seven years when well‑matched to loads and local tariffs/incentives; can be shorter or longer depending on fuel price and utility rates.
What drives savings? Avoided grid electricity costs, avoided boiler fuel, improved efficiency, potential demand charge reductions, and revenue from exports (if allowed).
What is trigeneration? CHP plus absorption cooling (heat drives a chiller to produce chilled water).
Which CHP technologies are common? Reciprocating (gas) engines, gas turbines, microturbines, and fuel cells; plus heat recovery components and optionally absorption chillers.
Can CHP systems run during grid outages? Only if designed to island safely, with proper protection, controls, and load management. Many interconnections are “non‑export” and will trip on outages unless specifically built for resilience.
What incentives exist for CHP projects? These vary by region: tax credits, grants, utility rebates, low‑interest financing, and carbon credits. Please check local, state, or federal programs.
What financing options are common for CHP projects? Owner‑funded, PPAs/energy‑as‑a‑service, and leases. Third‑party ownership can reduce upfront cost but may limit flexibility.
How long does a CHP project take? Concept to commissioning can be nine to 24 months, depending on size, permitting, interconnection, and procurement.
For other questions not listed here, please contact us.