HomeWho We AreServicesCase StudiesTeamInsightsContact Imbue Portal ↗
Aerial view over 36 Hans Strijdom, its roof covered in solar panels

Independent sustainability & energy advisory

Sustainability
from insight to impact.

Independent renewable energy consultants and solar asset managers for commercial and industrial projects.

13 MWp
Solar PV implemented
6.5 MWh
Battery storage delivered
50+
Sites under management
20 MWp
Monitored in the Imbue Portal
Scroll

Who we are

We don't sell systems.
We protect your decision.

Imbue Sustainability is an independent sustainability and energy advisory business. We work across the full lifecycle of a project — feasibility, design, procurement, contract negotiation, construction oversight and long-term performance monitoring.

We install nothing, sell nothing and resell nothing. We hold no supplier agreements and take no commissions. Our only interest is giving our clients the clearest, most objective advice available.

More about Imbue
13 MWp
Solar PV implemented
6.5 MWh
Battery storage delivered
50+
Sites under management
20 MWp
Monitored in the Imbue Portal

Service catalogue

An end-to-end advisory partner, from first site assessment to final performance report.

Imbue helps property developers, corporates, asset and portfolio managers, institutions and facilities navigate the complexities of sustainability and performance improvement — for both new builds and existing assets.

Simon Penso

From the founder

“Sustainability is no longer a premium to pay, but the fundamental building blocks upon which to build a transformed world.”
Simon Penso · Director & Founder

A mechanical engineer by training, Simon mastered the management of transitioning ‘ordinary’ buildings into flagship examples of sustainability. In 2023 he received the GBCSA Leadership Award: Established Green Star.

Meet the team
Commercial rooftop solar, Cape Town
Rex Trueform, Victoria Road — rooftop solar
Rooftop array seen from directly above
Campus rooftop solar below the mountains

Selected clients and partners

Growthpoint Properties
Pick n Pay
Sasol
Liberty Two Degrees
Boxwood Property Fund
Improvon
Swindon Property
RDC Property Group
Anuva Investments
Cubisol
Quoin Online
Stellenbosch University
Gauteng Provincial Government
PJC + Partners
Ludwig Design
Solid Green

Who we work with

Three ways clients use us.

01 · Asset & portfolio managers

Rank the portfolio before committing a rand.

We score every building on system performance, site suitability and financial return, then recommend which sites proceed to implementation, and in what order.

  • A financial model per building and for the whole portfolio
  • ROI, IRR, yields and payback against your metrics
  • A strategic roadmap for investment decisions
Retail centre with full rooftop solar coverage
02 · Developers & corporates

Six stages, from first data request to signed handover file.

We run the tender, negotiate the contracts, manage the EPC contractor and test performance against the design metrics — with no commercial interest in who wins the work.

  • Contractor vetting and tender adjudication
  • JBCC contract pack, site inspections and payment certificates
  • Snag close-out, SSEG and COC sign-off, O&M handover
Industrial roof with solar across every plane
03 · The Imbue Portal

Track the asset, not the promise.

A proprietary platform that captures real-time generation and compares it with simulated performance adjusted for weather and downtime — across one site or an entire portfolio.

  • Actual against estimated performance
  • Financial analytics measured against feasibility goals
  • One home for reporting, service records and as-builts
Visit the portal
Logistics development with rooftop solar

Selected work

Projects that stack up.

All case studies
Soshanguve Plaza
Soshanguve, Tshwane

Soshanguve Plaza

Solar photovoltaic installation with battery backup for a major retail centre north of Tshwane.

4.4 MWp6.68 MWh BESS
Stellenbosch University
Northern Campus

Stellenbosch University

Facilitation, management and monitoring of a planned 1 366 kWp installation across ten buildings.

1 366 kWp10 buildings
Rhenus Logistics
Meadowview, Johannesburg

Rhenus Logistics

Rooftop photovoltaic and battery installation for a new logistics development.

620 kWp800 kWh BESS
Solar O&M management and reporting
National

Solar O&M management and reporting

Ongoing management and reporting on the operations and maintenance of a national portfolio of solar assets.

50+ sites20 MWp
Junxion Mall
Philippi, Cape Town

Junxion Mall

Solar photovoltaic installation for Devmark Property Group.

1.2 MW
Pareto water strategy
Eight retail centres

Pareto water strategy

A water sustainability transformation strategy and road to improvement across Pareto's retail portfolio.

25% target3-year plan

The team

Who you will work with.

Full team
Simon Penso
Simon Penso
Director & Founder
ND Mech Eng
Jenni Lombard
Jenni Lombard
Business Partnerships Lead
HDip Ed, HDip Int Design
Danon Pina
Danon Pina
Head of Projects
BSc (Hons) Quantity Surveying
Tobie Steyn
Tobie Steyn
Head of Data Analytics
BSc Eng (Chemical)
Chelsea Botha
Chelsea Botha
Operations Lead
BA (Hons), LLB, PGDip
Bea van Huyssteen
Bea van Huyssteen
PA & Project Administrator
MPhil (Cand.), PGDip, BSc
Zainodine Dawood
Zainodine Dawood
Junior Project Engineer
BSc Eng (Mechatronics)
Chris Scheepers
Chris Scheepers
Junior Systems Engineer
BSc Eng (Electrical & Computer)

Get in touch

Honest advice, before you commit.

Tell us about the portfolio and we'll tell you where the return is — and where it isn't.